
728 S.W.2d 212 (1987)
STATE of Missouri, Respondent,
v.
James Edward RODDEN, Appellant.
No. 67253.
Supreme Court of Missouri, En Banc.
April 14, 1987.
Rehearing Denied May 19, 1987.
*213 Lee M. Nation, Kansas City, for appellant.
William L. Webster, Atty. Gen., John M. Morris, Asst. Atty. Gen., Jefferson City, for respondent.
ROBERTSON, Judge.
Appellant, James Edward Rodden, was convicted of the capital murder of Terry Trunnel. § 565.001, RSMo 1978.[1] The jury recommended a sentence of death, finding that the murder was committed while appellant was engaged in the commission of another capital murder, § 565.012.2(2),[2] and that the murder was outrageously or wantonly vile, horrible or inhuman in that it involved torture or depravity of mind, § 565.012.2(7).[3] Appellant appeals his conviction and sentence, raising five points of error: (1) the evidence is not sufficient to support the verdict; (2) the death penalty in this case is barred by collateral estoppel; (3) the trial court erred in sustaining the State's challenges for cause to certain members of the venire panel; (4) the jury was "death-qualified" in violation of appellant's due process rights; and (5) the death sentence is excessive and disproportionate.
Because of the sentence imposed, this Court has exclusive appellate jurisdiction. Mo. Const. art. V, § 3. We affirm both the judgment and the sentence.

I.

A.
The evidence against appellant is largely circumstantial. Appellant urges that the trial court erred in failing to grant his motion for acquittal on the ground that the evidence adduced at trial was not irreconcilable with any reasonable theory of his innocence, and therefore, that the evidence was insufficient to support the verdict.
On review, we consider the evidence in the light most favorable to the verdict, affording the State all reasonable inferences from that evidence. State v. Guinan, 665 S.W.2d 325, 327 (Mo. banc 1984), cert. denied 469 U.S. 873, 105 S.Ct. 227, 83 L.Ed.2d 156 (1984).
This appeal is from the second of two trials resulting from the murders of Terry Trunnel and Joseph Arnold on December 6, 1983. A jury previously convicted appellant of the capital murder of Arnold and sentenced appellant to life imprisonment without eligibility for probation or parole for fifty years. This case focuses on appellant's conviction for the capital murder of Trunnel.
Because the verdict in this case rests on circumstantial evidence, the facts and circumstances upon which the State relies must be consistent with each other and with the State's hypothesis of appellant's guilt. The evidence must be inconsistent with any reasonable theory of appellant's innocence. State v. Goddard, 649 S.W.2d 882, 884 (Mo. banc 1983), cert. denied 464 U.S. 997, 104 S.Ct. 495, 78 L.Ed.2d 689 (1983). The circumstances need not, however, be absolutely conclusive of guilt, nor must they demonstrate the impossibility of innocencethe mere existence of other possible hypotheses is not sufficient to remove the case from the jury. Id.
*214 Appellant's "reasonable theory of innocence" is the same as that offered at the Arnold trial: Arnold murdered Trunnel; appellant then killed Arnold in self-defense. He asserts here, as he did on appeal from his conviction for the murder of Arnold, that because the evidence introduced against him is explained by and is not inconsistent with this "reasonable theory of innocence," the State, in effect, did no more than prove his presence at and later departure from the crime scene.

B.
In August or September, 1983, appellant took up residence with Joseph Arnold at 24 West College Circle, Marshall, Missouri. Arnold occupied the southeast bedroom; appellant used the southwest bedroom.
On Monday evening, December 5, 1983, appellant went to a local bar in Marshall. There, he met Terry Trunnel. Trunnel needed a ride home; appellant offered to take her there. En route, appellant asked Trunnel if she would like to smoke marijuana. Trunnel said yes. Appellant took Trunnel to the 24 West College Circle apartment; Arnold was already there. Appellant introduced Arnold to Trunnel.
It is at this point that appellant's recounting[4] of the events of that nightthe basis for his theory of innocencecomes into conflict with the State's evidence. Because appellant challenges the State's refutation of his theory of innocence, we have chosen to set out appellant's story and the State's evidence in a juxtaposed manner.
Rodden's Testimony                                            The State's Evidence
  1. After Arnold "rolled a joint" and poured                   1. Jones testified that she phoned appellant
some drinks, appellant phoned his "ex-girlfriend"             in regard to the purchase of some of appellant's
Fran Jones. As a "jealousy tactic,"                           furniture prior to a trip to California he and
appellant told Jones that he was "going to have               Arnold planned to take. During the conversation,
sex with Terry."                                              Jones heard Arnold and a woman talking in
                                                              the background; Jones did not recognize the
                                                              woman's voice. Appellant asked if he could
                                                              come over. Jones said no. Appellant became
                                                              angry, telling Jones "to be quiet because Terry
                                                              would hear." Appellant told Jones he was "getting
                                                              tired" and that he "was going to f___ the
                                                              s___ out of Terry, everything goes." He said,
                                                              "Remember, everything I'm doing to Terry, I'm
                                                              really doing it to you, it's just her body."
  2. After the call, appellant left the apartment               2. Approximately thirty minutes later, appellant
and drove to Jones' home, where he tried                      called Jones. Appellant said he was coming
to persuade her to let him in. When Jones                     over and that if he had to, he'd kick the door in.
refused, he returned to his vehicle and started               After appellant hung up, Jones called the police.
to leave, whereupon he was halted by a police                 At 12:35 a.m., December 6, Officer Robert King
officer. After the officer conferred with Jones,              was dispatched to Jones' residence in response
the officer ordered appellant to leave the premises,          to her call. Upon arrival, Officer King spoke
and followed him to 24 West College Circle.                   with Jones, but found no one else there. Officer
                                                              King departed.
                                                                Some time later, Jones heard appellant "banging"
                                                              on her door and shouting for her to let him
                                                              in. Jones called the police again. Officer King
                                                              returned to Jones' residence at 1:39 a.m. and
                                                              saw a vehicle backing out of the driveway.
                                                              Officer King stopped the vehicle and spoke to
                                                              the occupant, whom he identified as appellant.
                                                              King advised appellant of Jones' complaint and
                                                              that she did not want appellant at her home.
                                                              King told appellant to stand by the patrol car
                                                              with another officer while he, King, spoke with
*215
                                                              Jones. Jones refused to sign a formal complaint,
                                                              stating that she simply wanted appellant
                                                              removed from her property. King returned to
                                                              the patrol car. He noticed that appellant's vehicle
                                                              bore no license plates. King followed appellant
                                                              back to Arnold's apartment, and, before
                                                              leaving, instructed appellant not to move his
                                                              vehicle until it was properly licensed. King told
                                                              appellant not to return to Jones' residence. Officer
                                                              King observed appellant go into the apartment
                                                              at approximately 1:53 a.m.
  3. Upon entering the apartment, appellant                     3. Appellant called Jones again. Appellant
phoned Jones again; he was "upset" because                    told her that he, she, and Jan (a friend of Jones)
Jones had refused to talk to him.                             "wouldn't live out the night."
  4. After that call, appellant said he went into               4. Marshall Police Chief Simmerman, a veteran
his own, the southwest, bedroom to see "who                   of 10,000 violent death investigations as a
was home and who wasn't." Asked what he                       homicide detective with the St. Louis Police Department
saw, appellant replied, "It just looked like two              and Chief Legal Investigator for the
people making love."                                          St. Louis Medical Examiner, is an expert in
                                                              interpreting blood patterns. He explained that
 Appellant returned to the living room, smoked                the amount of blood found in the southeast
half a joint, and went to the bathroom.                       (Arnold's) bedroom led him to conclude that
  On leaving the bathroom, appellant saw what                 most of the violence had occurred in that room.
appeared to be blood on the floor leading to his              A large quantity of blood was found on Arnold's
bedroom.                                                      water bed located against the east wall, accumulated
  Stepping into the doorway, appellant encountered            mostly in the center and at the foot on
Arnold and asked what was happening.                          either side of the bed.
At that point, appellant recounts, "[Arnold] just
kind of looked down and then he looked at me                    Terry Trunnel's clothing and shoes were
and he jumped up off the bed and started coming               found in the southeast bedroom. The clothing
towards me." Appellant saw that Arnold                        was undamaged.
held a knife and attempted to grasp Arnold's
wrist.
  5. Appellant explained that his hand slid                     5. Gloria Washam, a nurse at the Brookfield
down the knife, and was cut.                                  hospital where appellant received treatment,
                                                              (see narrative infra) observed a wound on appellant's
                                                              right hand. In response to her inquiry,
                                                              appellant stated that he was injured when the
                                                              jack slipped as he was changing a tire.
                                                                Dr. Don R. Dixon, who also attended appellant
                                                              at the hospital, asked appellant how he had
                                                              sustained the injuries to his hand. Appellant
                                                              again replied that the jack slipped as he was
                                                              changing a tire, injuring his hand. Dr. Dixon
                                                              testified that in his opinion, the injuries to appellant's
                                                              hand were not consistent with that type of
                                                              accident, but appeared to be caused by a sharp
                                                              object. In response to the prosecutor's hypothetical
                                                              question at trial, Dr. Dixon stated his
                                                              opinion that both lacerations would be consistent
                                                              with the hand sliding over the blade of a
                                                              butcher knife. Dixon described appellant's
                                                              hand wound as being consistent with an injury
                                                              caused by a hand sliding down off the handle
                                                              after hitting a solid object.
  6. A struggle ensued during which appellant                   6. Dr. Jay Dix, a forensic pathologist, performed
was able to manipulate Arnold's hand, which                   autopsies on the victims. The external
*216
held the knife, in such a way as to inflict cuts on           examination of Joseph Arnold at the autopsy
Arnold. Ultimately, appellant forced the knife                revealed a total of nine stab wounds inflicted at
into Arnold's chest "and he slumped down."                    various points on the body. Dr. Dix described
  At this point, appellant pulled the knife out of            stab wounds to the back, on the forehead extending
Arnold and backed away. Then Arnold arose                     to the bone, on the left side of the
again, lowered his head, and charged at him.                  cheek, and near the chin penetrating through
Appellant began swinging the knife "every                     the jaw and into the neck and chest cavity.
which way," and felt solid contact. At some                   Additionally, Arnold sustained a "cutting
point, explained appellant, "we was hand in                   wound" above the right ear, and a tear at the
wrist holding each other." Appellant stated                   back of the scalp. Dr. Dix stated that at least
that although he was much larger, physically,                 three of the nine wounds might have been the
he was unable to overpower Arnold.                            fatal injury. Arnold had no defensive or blocking
                                                              wounds on his body.
                                                                Appellant had no defensive or blocking marks
                                                              on his body.
  7. Eventually, Arnold fell to the floor on his                7. Chief Simmerman described Arnold's
face and stopped moving. Appellant immediately                corpse as lying face up with the legs bent beneath
picked Arnold up, saw that he was dead and                    the body in an "unnatural position" for a
"just laid him on over."                                      living person to have fallen. There were "a lot
                                                              of wounds to the head and face area." Blood
                                                              patterns on the north wall of Arnold's bedroom
                                                              and the coagulation of blood on the male's face
                                                              indicated that originally, the victim had lain face
                                                              down in the pool of blood (which appeared to
                                                              have drained from his head wounds) for some
                                                              time and that "somebody grabbed him and
                                                              flipped him over backwards with enough force
                                                              that he splashed blood against the wall."
  8. Then, appellant went to his bedroom, saw                   8. In the southwest (appellant's) bedroom
Trunnel "kind of half off the bed," picked her                where Trunnel's body was found, Chief Simmerman
up and laid her across the bed. Appellant                     saw some blood smears on the wall as
placed his hand on her chest to check for signs               if somebody with blood on their arm "bumped
of life, "but there was nothing." He "didn't                  against the wall." The bed, on which the body
notice" any bindings on Trunnel's body.                       lay face up, consisted of two mattresses stacked
                                                              on top of an innerspring mattress resting on the
                                                              floor. There were no bedclothes of any kind on
                                                              the mattresses. There were multiple stab
                                                              wounds on the female's body ranging from the
                                                              legs to the chest.
                                                                The external examination of Terry Trunnel
                                                              revealed eleven stab wounds, including two on
                                                              the upper left arm, four on the forearm, two on
                                                              the chest, one on the side of the left leg, one
                                                              near the left knee and one near the right ankle.
                                                              At least one of Trunnel's wounds was caused by
                                                              a large knife, consistent with the butcher knife
                                                              found with appellant at Purdin, Missouri (see
                                                              narrative infra). Dr. Dix indicated that the
                                                              wounds on Trunnel's forearm were "blocking"
                                                              or "defense" wounds. According to Dr. Dix,
                                                              the wound to Trunnel's upper arm "actually
                                                              went through and caused a breakage of the left
                                                              arm bone, the humerus." He stated that driving
                                                              a knife through the outside of an arm and
                                                              into the bone, causing it to break, would require
                                                              a "significant" amount of force.
                                                                Chief Simmerman noted that while there was
                                                              some drainage of blood from the wounds on
                                                              Trunnel's right leg, which was dangling off the
*217
                                                              stack of mattresses, the multiple gashes to her
                                                              torso and arms were dry. Simmerman explained
                                                              that had Trunnel's heart still been beating
                                                              when she was placed on the mattress, blood
                                                              would have run out of the upper wounds. The
                                                              fact that they were dry indicated that there was
                                                              only enough blood left in her system to drain by
                                                              force of gravity down to the leg area. Simmerman
                                                              concluded from this that the woman did
                                                              not die on the mattress, but "had to be brought
                                                              there from someplace else" after she was already
                                                              dead.
                                                                There was a cord tied around the right wrist
                                                              and left ankle of Trunnel's body. The cords
                                                              were clearly visible to Officer Deems, the first
                                                              officer on the scene, from the doorway to the
                                                              bedroom.
                                                                There was no bedframe to which the cords
                                                              tied to Trunnel's left wrist and right ankle
                                                              might have been fastened in appellant's bedroom
                                                              where Trunnel's body was found.
                                                                Simmerman explained that when Arnold's
                                                              body was thrown backward, what looked to be
                                                              "about a quart" of coagulating blood was exposed
                                                              on the floor. The pattern of blood on the
                                                              southeast bedroom floor indicated that someone
                                                              had dragged a heavy object, trailed by something
                                                              leaving a small serpentine line, on the
                                                              floor into the hallway toward the southwest
                                                              bedroom. Simmerman also indicated that it appeared
                                                              that Arnold's body had been moved "to
                                                              get him out of the way."
                                                                Appellant's head hair was found on Trunnel's
                                                              forearm, left wrist, and right ankle.
                                                                Trunnel's blood was found on the T-shirt worn
                                                              by appellant at the Brookfield Hospital.
                                                                Dr. Bedford Knipschild, Saline County Coroner,
                                                              examined the bodies at the scene. Based
                                                              on a condition known as "livor mortis," i.e.,
                                                              settling of blood after death, Dr. Knipschild
                                                              placed Trunnel's time of death at between 5:00
                                                              and 5:30 a.m. (Appellant arrived at the apartment
                                                              at 1:53 a.m.)
  9. After rearranging Trunnel's body, appellant                9. Simmerman observed areas of yellowish
"walked around the apartment back and                         discoloration on the corpse's abdomen, chest and
forth," about an hour, during which time he was               pelvis, as if "somebody had placed something
bleeding.                                                     burning or placed something on her and
                                                              burned it." He described the blood pattern
                                                              from a wound on the woman's right leg as
 Appellant spread lamp fluid and started a fire               looking like "it had dried down across something
in the box in the kitchen and a fire "in his                  that was foreign on her leg, something
bedroom." "I just wanted to be rid of all  of               that is already greasy and the blood didn't stick
every  all of it. I wanted it to be a bad dream             to it and its falling down onto the floor."
 to make it go away," he said.
                                                                Marshall Assistant Fire Chief Woodland testified
                                                              that cinnamon-scented combustible liquid
                                                              was found on the leg of the female body where
                                                              it appeared to have "displaced the blood" on her
                                                              calf.
*218
                                                                Woodland observed some kind of burnt material
                                                              on the floor. He also saw several burns on
                                                              the woman's body. Woodland described these
                                                              as a broad second-degree burn from the left arm
                                                              pit across both breasts, a long third-degree triangular
                                                              burn on the waist, a large third-degree
                                                              burn "about the size of a grapefruit" on the
                                                              right hip, and several smaller second-degree
                                                              burns on the right hip and abdomen.
                                                                Woodland concluded that fire had been ignited
                                                              at two points in the apartment: a cardboard box
                                                              in the kitchen and the bed where the female
                                                              corpse lay. In his opinion, the ignition at both
                                                              points "could only have been intentional."
  10. After "walking around" for approximately                  10. Just after 6:00 a.m., on December 6, Eddie
an hour, and then attempting to set fire                      Walker, a neighbor, observed appellant leaving
to the apartment, appellant changed clothes and               Arnold's apartment. Dr. Knipschild fixed
departed in Arnold's Ford which had a license                 Trunnel's time of death at between 5:00 and 5:30
plate and was in better condition than his car.               a.m. (see para 8, supra).
Appellant said he was also unable to find his car
keys.
At approximately 9:00 a.m., December 6, Trooper Dwight Hartung responded to a reported accident at the home of Ferrell Lewis, located in Purdin. Upon arrival, Trooper Hartung saw a blue Ford lodged under the porch roof of the Lewis house and a man lying on an ambulance stretcher just inside the front door. Hartung radioed the Ford's license plate number to patrol headquarters, and was advised that the vehicle was registered to Robert Arnold. The man on the stretcher identified himself to Officer Hartung as "James Rodden."
By his own account, appellant had left the apartment in Arnold's car, heading north toward Iowa. When he got as far as Purdin, however, he began feeling "real hot and real lightheaded," lost consciousness and drove into the front of Ferrell Lewis' house. Appellant was taken by ambulance to the Brookfield, Missouri, hospital.
After the ambulance departed, Trooper Hartung looked inside the Ford and saw a wooden-handled butcher knife, several beer cans and a bottle marked "Christian Brothers Brandy." Hartung secured the car and left for the hospital.
Appellant received medical attention at the hospital in Brookfield, Missouri. After receiving treatment, police officers took appellant to the Brookfield Police Department. There, appellant gave police permission to search the impounded Ford. Items removed from the Ford included a butcher knife, a fleece seat cover, a green bed sheet, a bottle of Christian Brothers brandy, an ice scraper, and blood scrapings from a metal tool box.

C.
Appellant, frustrated by Jones' rejection, arrived at the apartment at 1:53 a.m. He called Jones a final time, warning her that she, and he, would not live out the night.
Other than appellant, only Arnold could have killed Trunnel. Appellant's own story suggests that Trunnel disrobed prior to appellant's 1:53 a.m. arrival; the location and undamaged condition of her clothing reasonably infers that Trunnel did not disrobe under conditions of physical violence. Trunnel died between 5:00 and 5:30 a.m., at least three hours after appellant arrived.
The only believable evidence is that Trunnel was killed in Arnold's bedroom and dragged, cords dangling from her body, *219 already dead, into appellant's bedroom. Arnold's body was thrown aside to allow Trunnel to be dragged away. She died as a result of an exceedingly brutal and violent strugglea struggle so violent that one stab fractured her upper arm bone.
It is impossible to believe that a struggle of this nature between Arnold and Trunnel could be mistaken for "making love" or escape the attention of appellant as he sat calmly in the living room "smoking half a joint."
The only believable evidence and the only reasonable inferences which can be taken from that evidence are not only inconsistent with any theory of innocence but consistent with the State's theory of guilt.
The evidence of appellant's actions after departing Arnold's apartment also reasonably tends to rebut any theory of innocence.
First, by his own admission, appellant attempted to destroy the crime scene by fire. Significantly, the evidence shows that combustible liquid was poured on Trunnel's body and ignited at several points. The jury was not required to believe appellant's explanation that he simply "wanted it to be a bad dream" and to "make it go away." State v. Holt, 592 S.W.2d 759, 774 (Mo. banc 1980).
Second, by his own account, appellant was bleeding severely after the alleged assault by Arnold, and admitted that while he saw no signs of life, he was not certain that Terry Trunnel was dead. Nevertheless, appellant did not seek medical attention for himself or Trunnel, or notify anyone of what had allegedly happened. Instead, he fled the crime scene in Arnold's car, taking with him a butcher knife which bore the blood of one, and perhaps both, of the victims.[5] Appellant's flight ended only when he lost consciousness and crashed into Ferrell Lewis' porch at Purdin. Appellant's flight was admissible to show a consciousness of guilt contrary to any theory of innocence. State v. Kilgore, 447 S.W.2d 544, 547 (Mo.1969); State v. Summers, 660 S.W.2d 772, 773 (Mo.App.1983); State v. Logan, 617 S.W.2d 433, 435 (Mo.App.1981).
Third, appellant told Gloria Washam and Dr. Dixon that he had injured his hand while changing a tire. This, of course, was untrue. Exculpatory statements, when proven false, evidence a consciousness of guilt and therefore bear directly on the issue of guilt or innocence. State v. Zerban, 412 S.W.2d 397, 399-400 (Mo.1967); State v. Ross, 606 S.W.2d 416, 425 (Mo. App.1980).
Facts, of course, do not speak for themselves. "They speak for or against competing theories." T. Sowell, A Conflict of Visions, 16 (1987). Based upon the facts and circumstances of this case, we find that the State's evidence and the inferences reasonably drawn therefrom in the light most favorable to the verdict are consistent with each other and the State's theory of appellant's guilt. They are inconsistent with any reasonable theory of appellant's innocence. The jury properly found that appellant killed Terry Trunnel. Appellant's first point is therefore denied.

II.
Appellant was previously tried and convicted in the Circuit Court of Phelps County of the capital murder of Joseph Arnold. State v. Rodden, 713 S.W.2d 279 (Mo.App.1986). The jury in that case sentenced appellant to life imprisonment without possibility of parole for fifty years. Id. at 280. Prior to the present trial, appellant filed a motion to preclude the State from seeking the death penalty on the theory that because he was not sentenced to death for the murder of Joseph Arnold at his previous trial, the doctrine of collateral estoppel barred any consideration of the death penalty for the murder of Terry Trunnel. This theory was rejected by the trial court, and is now being advanced on appeal.
*220 The principle of collateral estoppel "means simply that when an issue of ultimate fact has once been determined by a valid and final judgment, that issue cannot again be litigated between the same parties in any future lawsuit." Ashe v. Swenson, 397 U.S. 436, 443, 90 S.Ct. 1189, 1194, 25 L.Ed.2d 469 (1970). An essential requirement for the application of collateral estoppel is that "the issue decided in the prior adjudication was identical with the issue presented in the present action." Hudson v. Carr, 668 S.W.2d 68, 70 (Mo. banc 1984), quoting Oates v. Safeco Ins. Co. of America, 583 S.W.2d 713, 719 (Mo. banc 1979) (emphasis in original). "Collateral estoppel forecloses a party from litigating only those exact issues unambiguously decided in the earlier case." Owens v. Government Employees Ins. Co., 643 S.W.2d 308, 310 (Mo.App.1982). Under these principles, collateral estoppel has no application in the present case.
The issue before the Phelps County jury was whether appellant should receive a sentence of death for the murder of Joseph Arnold. While evidence regarding the killing of Terry Trunnel was before them, the Phelps County jury was not asked to determine guilt or to assess punishment for that act.
Trunnel's body showed more evidence of abuse than that suffered by Arnold; she had been stabbed eleven times, once through the arm with enough force to break the bone. After her death, appellant poured a combustible liquid on her body and tried to set her afire.
Not only does this case involve a different victim, but the facts demonstrate different circumstances surrounding each death. It cannot be said that the Arnold and Trunnel murders present identical issues so that assessment of a life sentence as punishment for the former must bar consideration of death as a penalty for the latter. The appropriateness of capital punishment for the murders of Joseph Arnold and Terry Trunnel are simply not "identical" issues.
We find that the trial court properly rejected appellant's claim of collateral estoppel.

III.
Appellant next raises two points of error focusing on the jury selection process.

A.
Appellant first argues that six members of the venire who expressed opposition to the death penalty were erroneously removed for cause. Absent a clear abuse of discretion, the trial court's ruling will not be disturbed on appeal. State v. Smith, 649 S.W.2d 417, 422 (Mo. banc 1983).

1.
The record provides ample evidence for the disqualification of four of the six stricken veniremen. In response to individual questioning by counsel, each person expressed emphatic opposition to the death penalty, indicating that under no circumstances could he or she return a sentence of death. Such testimony demonstrated that these persons were "substantially impair[ed]" in their ability to serve as jurors in accordance with their instructions and their oath. Wainwright v. Witt, 469 U.S. 412, 105 S.Ct. 844, 852, 83 L.Ed.2d 841 (1985); Adams v. Texas, 448 U.S. 38, 48, 100 S.Ct. 2521, 2528, 65 L.Ed.2d 581 (1980); State v. Young, 701 S.W.2d 429, 432 (Mo. banc 1985). The responses were unequivocable, unwavering and more than sufficient to sustain a challenge for cause.

2.
The remaining two members of the venire removed for cause, Benner and Berger, initially stated that they would be unable to consider imposing the death penalty regardless of the facts and circumstances adduced at trial. However, both later suggested that they might be able to consider capital punishment in a certain hypothetical situation. Ms. Benner stated that she could consider imposing a sentence of death only if one of her relatives was the victim. Mrs. Berger stated that she could never recommend death except in genocide *221 situations like the Holocaust, in which the perpetrator had killed millions of people.
This Court has consistently held in cases presenting similar facts that a venireman's indication of willingness to consider the death penalty in extreme hypothetical situations does not render him immune from exclusion from the jury for cause. State v. Zeitvogel, 707 S.W.2d 365, 367 (Mo. banc 1986); State v. Johns, 679 S.W.2d 253, 264-65 (Mo. banc 1984). Here, both of the challenged veniremen not only indicated their personal hostility to death as a punishment option, but also expressed unequivocal opposition to the death penalty in a case like that before them. The trial court did not abuse its discretion in finding that these individuals were substantially impaired in their ability to judge the issue of punishment fairly and in accordance with their instructions and their oath.

B.
Appellant next asserts that the voir dire in this case was conducted in such a manner as to empanel a jury committed or predisposed to impose the penalty of death.
Defense counsel lodged no objection on this ground at any point during voir dire; neither was it advanced in appellant's Motion for New Trial. Therefore, our review is limited to an examination for plain error. We reverse only where a manifest injustice or miscarriage of justice occurred.
The precise theory upon which appellant bases his claim of error is not entirely clear from his brief. His position is either (1) that inquiry during voir dire focusing on attitudes toward the death penalty is inherently improper because it predisposes the jury in favor of capital punishment, or (2) that the prosecutor in this case obtained from the potential jurors a commitment to return a sentence of death.

1.
If it be the former, appellant's argument is untenable under state and federal law.
Voir dire examination focusing on the attitudes of venire members toward the death penalty is not designed to forge a commitment to the death penalty. Instead, the exercise seeks to discover potential jurors who are committed to considering the full range of punishment provided by state law for capital (now first-degree) murder. Witherspoon v. Illinois, 391 U.S. 510, 522 n. 21, 88 S.Ct. 1770, 1777 n. 21, 20 L.Ed.2d 776 (1968). If a venireman demonstrates his inability to so commit, he is by definition unable to follow the instructions of the court or his oath as a juror. He is excludable for cause. Wainwright, 105 S.Ct. at 852; Young, 701 S.W.2d at 432-33.
A constitutional challenge to the death-qualification process was recently rejected in Lockhart v. McCree, ___ U.S. ___, 106 S.Ct. 1758, 90 L.Ed.2d 137 (1986), where the Court stated that "an impartial jury consists of nothing more than `jurors who will conscientiously apply the law and find the facts.'" Id. at___, 106 S.Ct. at 1767, quoting Wainwright, 105 S.Ct. at 852 (emphasis omitted). Under Lockhart, any claim by appellant that the death-qualification process inherently results in an unconstitutional deprivation of the right to impartial jury is without merit. State v. Driscoll, 711 S.W.2d 512, 517 (Mo. banc 1986).

2.
If appellant's argument is that the prosecutor impermissibly sought a commitment from potential jurors to return a sentence of death under the facts of the case before them, such a claim is squarely refuted by the record. At no point during the death penalty inquiry process did the State ask how a potential juror would vote under the facts of the case before him. To the contrary, the prosecutor apologized several times to members of the venire that his probe into their views on capital punishment could not be made in reference to the facts of the case they would hear. Appellant's suggestion that the prosecutor obtained a commitment from the jury merely by informing them that the State intended to seek the death penalty borders on frivolity.
We find no error, plain or otherwise, in the death penalty inquiry of potential jurors in this case.


*222 IV.
Finally, appellant argues that the death penalty in this case is excessive and disproportionate to similar cases, considering the crime and the defendant, and that this Court, in its exercise of independent review, should set aside his sentence. § 565.014.3(3), RSMo 1978.[6]
Appellant does not claim, and the record does not support a finding that the sentence was imposed under influence of passion, prejudice or any arbitrary factor. § 565.014.3(1), RSMo 1978.[7] Nor does he claim that the aggravating circumstances found by the jury were unsupported by the evidence. § 565.014.3(2).[8]
The facts of this case show a level of inhumanity and depravity similar to other cases in which the death penalty was imposed upon a finding that the murder involved torture or depravity of mind and that, as a result thereof was outrageously or wantonly vile, horrible or inhuman. State v. Jones, 705 S.W.2d 19 (Mo. banc 1986), cert. denied ___ U.S. ___, 106 S.Ct. 3286, 91 L.Ed.2d 574 (1986); State v. Preston, 673 S.W.2d 1 (Mo. banc 1984), cert. denied 469 U.S. 893, 105 S.Ct. 269, 83 L.Ed.2d 205 (1984); State v. Battle, 661 S.W.2d 487 (Mo. banc 1983), cert. denied 466 U.S. 993, 104 S.Ct. 2375, 80 L.Ed.2d 847 (1984); State v. Smith, 649 S.W.2d 417 (Mo. banc 1983), cert. denied 464 U.S. 908, 104 S.Ct. 262, 78 L.Ed.2d 246 (1983); State v. LaRette, 648 S.W.2d 96 (Mo. banc 1983), cert. denied 464 U.S. 908, 104 S.Ct. 262, 78 L.Ed.2d 246 (1983); State v. Trimble, 638 S.W.2d 726 (Mo. banc 1982), cert. denied 459 U.S. 1188, 103 S.Ct. 838, 74 L.Ed.2d 1031 (1983); State v. Blair, 638 S.W.2d 739 (Mo. banc 1982), cert. denied 459 U.S. 1188, 103 S.Ct. 838, 74 L.Ed.2d 1030 (1983); State v. Newlon, 627 S.W.2d 606 (Mo. banc 1982), cert. denied 459 U.S. 884, 103 S.Ct. 391, 74 L.Ed.2d 520 (1982); State v. Mercer, 618 S.W.2d 1 (Mo. banc 1981), cert. denied 454 U.S. 933, 102 S.Ct. 432, 70 L.Ed.2d 240 (1981).
Terry Trunnel did not die quickly. She was stabbed eleven times in the chest, back, arm and leg. The "blocking wounds" on her arm demonstrate that she was conscious during the attack and attempted to fend off appellant's knife. Dr. Dix testified that Trunnel would have remained conscious for approximately ten minutes even after she suffered the fatal injuries to her lungs. Thus, not only was Trunnel the victim of brutal physical abuse, but she had ample time to contemplate her fate. Smith, 649 S.W.2d at 434; LaRette, 648 S.W.2d at 102; Trimble, 638 S.W.2d at 731; Mercer, 619 S.W.2d at 4. After she died, Trunnel's body was mutilated by appellant, who poured a combustible liquid on it and set her afire. Jones, 705 S.W.2d at 20-21.
As to the nature of appellant, the evidence demonstrates his lack of remorse for the murder. Appellant made detailed efforts to destroy the incriminating evidence and escape the scene. He splashed lamp oil throughout the apartment and ignited it in both the kitchen and in the southwest bedroom on Trunnel's body. He fled in Arnold's car taking with him the murder weapon. Appellant's escape was foiled only by his weakness from loss of blood.
Further, the fact that appellant is a multiple murderer was before the jury. His willingness to kill, and kill again, merits even greater societal concern than individual homicide and particularly warrants imposition of the ultimate punishment. State v. Mathenia, 702 S.W.2d 840 (Mo. banc 1986), cert. denied ___ U.S. ___, 106 S.Ct. 3286, 91 L.Ed.2d 574 (1986); State v. Byrd, 676 S.W.2d 494 (Mo. banc 1984), cert. denied 469 U.S. 1230, 105 S.Ct. 1233, 84 L.Ed.2d 370 (1985).
Appellant asserts his youth and the fact that he had been drinking and smoking marijuana as mitigating circumstances; neither is sufficient to warrant a reduction of this sentence. The death penalty has been upheld in several cases in which the *223 defendant was younger than appellant's 23 years at the time of the crime. State v. Lashley, 667 S.W.2d 712, 716 (Mo. banc 1984), cert. denied 469 U.S. 873, 105 S.Ct. 229, 83 L.Ed.2d 158 (1984) (17 years old); Battle, 661 S.W.2d at 488, 494 (18 years old); Trimble, 638 S.W.2d at 730 (20 years old). In regard to the second factor he offers in mitigation, the record is devoid of evidence to support a claim of mental impairment or lack of responsibility by reason of alcohol or drug abuse. As such, the mere fact that appellant partook of intoxicants prior to the murder is an insufficient basis upon which to set aside his sentence. Preston, 673 S.W.2d at 8.
Upon consideration of the crime, the defendant and other cases in which the death penalty has been imposed, we find this sentence neither excessive nor disproportionate in this case.
The judgment of guilt for capital murder and the sentence of death are affirmed.
All concur.
NOTES
[1]  Repealed effective October 1, 1984, currently § 565.020, RSMo Cum.Supp.1984.
[2]  Repealed effective October 1, 1984, currently § 565.032.2(2), RSMo Cum.Supp.1984.
[3]  Repealed effective October 1, 1984, currently § 565.032.2(7), RSMo Cum.Supp.1984.
[4]  Appellant did not take the stand at his trial for the murder of Terry Trunnel; his testimony from the previous trial for the murder of Joseph Arnold was introduced by the State.
[5]  Dr. Kwei Lee Su, Chief Forensic Serologist at the Missouri State Highway Patrol crime laboratory, testified that blood samples taken from the butcher knife were consistent with both Arnold's and Trunnel's blood type.
[6]  Repealed October 1, 1984, currently § 565.035.3(3), RSMo Cum.Supp.1984.
[7]  Repealed October 1, 1984, currently § 565.035.3(1), RSMo Cum.Supp.1984.
[8]  Repealed October 1, 1984, currently § 565.035.3(2), RSMo Cum.Supp.1984.
