                    THE STATE OF SOUTH CAROLINA
                        In The Court of Appeals

            The State, Respondent,

            v.

            Justin Jamal Warner, Appellant.

            Appellate Case No. 2017-001313



                         Appeal From Anderson County
                    R. Lawton McIntosh, Circuit Court Judge


                             Opinion No. 5717
                 Heard December 11, 2019 – Filed April 8, 2020


                                  AFFIRMED


            Chief Appellate Defender Robert Michael Dudek, of
            Columbia, for Appellant.

            Attorney General Alan McCrory Wilson, Deputy
            Attorney General Donald J. Zelenka, Senior Assistant
            Deputy Attorney General Melody Jane Brown, Senior
            Assistant Attorney General W. Edgar Salter, III, all of
            Columbia; Assistant Attorney General Samuel Marion
            Bailey, of Bluffton; and Solicitor David Rhys Wagner,
            Jr., of Anderson, all for Respondent.


HILL, J.: Justin Jamal Warner appeals his convictions for murder, attempted armed
robbery, and possession of a weapon during a violent crime. He challenges the trial
court's admission of expert testimony regarding cell site location information
(CSLI), denial of his motion to suppress evidence of his cell phone records, denial
of his motion for a pretrial hearing as to his probation officer's identification of him
from a surveillance video, and admission of five maps created by the expert
depicting cell tower locations Warner's phone had accessed. Finding no error in any
of these rulings, we affirm.

                                           I.

At 10:13 p.m. on April 30, 2015, a surveillance camera at the BP convenience store
at Exit 40 on Interstate 85 in Anderson County recorded a person entering the store.
The person approached the cashier, Mradulaben Patel (who owned the store with her
husband of thirty-eight years, Pravinchandra). The person appeared to ask about
buying a cigar and can then be seen flipping open his wallet and presenting it to Ms.
Patel, presumably showing his identification. When Ms. Patel presented the cigar,
the person handed Ms. Patel payment, and, as Ms. Patel opened the cash register, the
person pulled a handgun from his pants pocket, pointed it at Ms. Patel, and attempted
to reach into the cash register drawer. When Ms. Patel tried to push the gun away,
the person shot her. The person left the store and wiped down the front door handle
with his shirt. The incident took less than three minutes. Ms. Patel died several days
later.

After releasing a portion of the video to local media, police received a Crimestoppers
tip identifying Justin Jamal Warner as the perpetrator and relaying remarkable detail
about the crime. Police discovered Warner's date of birth matched the date of birth
Ms. Patel entered into the cash register seconds before the murder. Investigators
also discovered Warner was on probation in Georgia, so they sent clips of the video
to his probation officer, Nathan Goolsby, who identified Warner as the perpetrator.
Warner's palm print from his probation file was matched to a latent palm print taken
from the counter beside the cash register.

Warner turned himself in to the probation office. He arrived in a silver Dodge
Challenger, a search of which revealed a "flip" style wallet similar to the wallet seen
in the video. Police also found cigar wrappers in the car bearing a purchase price of
ninety-nine cents, the same price of the cigars the cash register receipt showed Ms.
Patel sold moments before being killed. Police further determined the Challenger
was similar to a car seen on a store surveillance video facing the parking lot shortly
before the crimes occurred. They also noted the suspect in the surveillance video
appeared to have markings on his upper arm consistent with tattoos Warner has in
the same area.

An Anderson County magistrate issued a search warrant to T-Mobile for Warner's
cell phone records. At trial, the State offered FBI Special Agent David Church as
an expert in historical cell site analysis and cell phone record analysis. Warner
objected, contending Church's methodology of linking phone records to a cell
phone's location did not meet the threshold reliability standard Rule 702, SCRE,
requires for expert testimony. The trial court overruled Warner's objection, and
Church gave opinion testimony that Warner's phone had "pinged" off T-Mobile cell
towers near the crime scene shortly before and after Ms. Patel was shot. The jury
deliberated a little over two hours before finding Warner guilty on all counts.

                                          II.

A. Admissibility of CSLI Expert Opinion Testimony

Warner asserts the trial court erred in admitting Church's expert testimony
interpreting the CSLI evidence, arguing it did not meet the reliability requirement of
Rule 702, SCRE. We review evidentiary rulings for abuse of discretion, meaning
we will only disturb them if they have caused prejudice and are the result of legal
error or have inadequate factual support. Fields v. J. Haynes Waters Builders, Inc.,
376 S.C. 545, 555, 658 S.E.2d 80, 85–86 (2008).

   i.     CSLI Evidence and Methodology

Before we address whether Church's testimony cleared the reliability hurdle of Rule
702, SCRE, we take a step back to consider the background of CSLI evidence. Cell
phones operate much like two way radios, connecting with other phones by way of
radio frequency signals that are picked up and transmitted by the carrier's cell phone
towers. A typical basic tower has a three sided antenna with each side covering a
120 degree "wedge." The term "cell" or "cellular" derives from the design of the
calling networks, which are divided into hexagon-shaped geographic areas called
cells, much like a honeycomb. The cell tower is located at the spot where three cells
meet. Blank, The Limitations and Admissibility of Using Historical Cellular Site
Data to Track the Location of a Cellular Phone, 18 Rich. J. L. & Tech. 3, 5 (2011).
The coverage area of a cell generally depends upon the number of antennas on the
tower, the height of the antenna, its elevation above sea level, topography, and
obstructions. "One cell may cover an area up to thirty miles from the site, for a total
coverage area of approximately 2,700 square miles." Id. In urban areas, cell sites
may exist every one-half to one mile, while in rural areas they may be several miles
or more apart.

When a call is made, the cell phone connects or "pings" to the cell tower with the
strongest signal, which is generally the closest tower. But not always. Signal
strength can depend on many things, including the height of the cell tower, wattage
output of the phone or the tower antenna, the angle and direction of the antenna,
maintenance, range of coverage, network traffic, topography, and whether the phone
is outdoors or indoors. Id. at 7.

Church described how cell phone records track the number being called; the date,
time, and duration of the call; and the approximate location of the phone at the time
of the call. He explained the cell phone carrier maintains records of the addresses
and coordinates of its cell towers, which he matches to the phone records and then
creates a map depicting the geography of the relevant calling history. Church
testified he had over 800 hours of training in CSLI, including training by all the
major cell phone carriers with their compliance personnel and network engineers.
As a certified FBI instructor, he has taught CSLI analysis to state, local, and federal
agencies. Church has worked on over 150 investigations and testified as an expert
on CSLI eleven previous times.

When explaining why CSLI analysis was reliable, Church testified cell phone
companies keep records for billing purposes to ensure efficient network operation
and customer satisfaction. He also explained carriers are required to be able to
provide the tower a phone used when it called 911, so emergency personnel can
locate the caller's approximate location. The trial court pointedly asked Church,
"[Y]ou said to [the solicitor], yes, it's reliable. Besides the boilerplate response, how
do you determine that it's, in fact, reliable?" Church replied in part,

             [U]sing common sense and investigative knowledge and
             your expertise in knowing how a network operates,
             determine where to go look for a phone. And we
             successfully do that, you know, every week, our unit does.
             So to me . . . the practical application of it is the best study.

Church was careful to note CSLI evidence can only show the approximate location
of a phone at a given time. He analyzed Warner's call records and the location of
the cell towers Warner's phone had pinged. He ascertained which side of the tower
was being used and the direction the radio signal emitting from the tower was
traveling. From this, Church created a report that included a series of maps
illustrating the route Warner's phone traveled on April 30, the date of the crime. The
maps depicted the phone's tower usage and showed that between 7:53 p.m. and 9:45
p.m. Warner's phone traveled north along I-85 from the Atlanta area to just north of
the crime scene and then north to the Pelham Road area in Greenville. The phone
then began traveling south along I-85. At 10:11 p.m., the phone pinged the north
side of a tower located south of I-85 near Highway 25. This tower is located
three-and-a-half miles north of the crime scene, as the crow flies. At 10:19 p.m., the
phone used the northern side of a tower located near the exit where I-85 and Highway
81 intersect. This tower stands two-and-a-half miles south of the crime scene.
Church noted a phone could be anywhere in that general area, even a bit behind the
direction the tower sector was pointing, given radio waves are not linear. Church
concluded that, in his opinion, the phone was in the "general vicinity" of the crime
scene around the time the crime occurred, though of course he could not say who
had the phone.

  ii.    Rule 702, SCRE Reliability Requirements for Expert Opinion Evidence

Before admitting expert testimony, trial courts, as the gatekeepers of evidence, must
ensure the proffered evidence is beyond the ordinary knowledge of the jury; the
witness has the skill, training, education, and experience required of an expert in his
field; and the testimony is reliable. Watson v. Ford Motor Co., 389 S.C. 434,
445–46, 699 S.E.2d 169, 174–75 (2010); Rule 702, SCRE. If the trial court is
satisfied the proposed expert evidence meets these criteria, it must then consider
whether the probative value of the evidence is substantially outweighed by its
potential for unfair prejudice or other Rule 403, SCRE, considerations. State v.
Council, 335 S.C. 1, 20, 515 S.E.2d 508, 518 (1999).

CSLI evidence is more technical in nature than scientific. It still falls within Rule
702, SCRE, and must be screened for reliability. State v. White, 382 S.C. 265, 274,
676 S.E.2d 684, 688 (2009); see also State v. Prather, Op. No. 27954 (S.C. Sup. Ct.
filed Mar. 11, 2020) (Shearouse Adv. Sh. No. 10 at 30). Due to the wide range of
nonscientific fields and topics, our supreme court has declined to set forth general
reliability guidelines, instead opting to consider each case on its facts. White, 382
S.C. at 274, 676 S.E.2d at 688.

In South Carolina, a trial court minding the Rule 702 gate must assess not only (1)
whether the expert's method is reliable (i.e., valid), but also (2) whether the substance
of the expert's testimony is reliable. See Council, 335 S.C. at 20, 515 S.E.2d at 518
(trial court must determine whether underlying science is reliable); Watson, 389 S.C.
at 446, 699 S.E.2d at 175 (trial court "must evaluate the substance of the testimony
and determine whether it is reliable"). South Carolina has not adopted Daubert v.
Merrell Dow Pharmaceuticals, Inc., 509 U.S. 579, 594–95 (1993), by name, nor has
it revised Rule 702, SCRE, to incorporate the Daubert framework. Nevertheless,
our approach is "extraordinarily similar" to the federal test. Young, How Do You
Know What You Know?, 15 S.C. Law. Rev. 28, 31 (2003).
In Daubert, the United States Supreme Court declared the "overarching subject" of
the Federal Rule of Evidence 702 inquiry to be "the scientific validity—and thus the
evidentiary relevance and reliability—of the principles that underlie a proposed
submission. The focus, of course, must be solely on principles and methodology,
not on the conclusions that they generate." 509 U.S. at 594–95. Four years later,
the Court walked this declaration back a few steps, noting conclusions and
methodology are "not entirely distinct from one another." Gen. Elec. Co. v. Joiner,
522 U.S. 136, 146 (1997). Joiner held the trial court did not abuse its discretion
under Rule 702 by excluding the testimony of medical experts whose conclusions
were not supported by the data and experiments upon which they relied. As the court
explained: "Nothing in either Daubert or the Federal Rules of Evidence requires a
district court to admit opinion evidence that is connected to existing data only by
the ipse dixit of the expert. A court may conclude that there is simply too great an
analytical gap between the data and the opinion proffered." Id.

The substance of an expert's testimony is reliable if it adheres to the rigors of the
method. Kumho Tire Co. v. Carmichael, 526 U.S. 137, 152 (1999). As long as the
trial court is satisfied the expert's testimony consists of a reliable method faithfully
and reliably applied, the gate of admissibility should be opened. The correctness of
the conclusion reached by an expert's faithful application of a reliable method (and
the credibility of the expert who reached it) is for the jury, for the trial judge must
remain at the gatepost and not tread on the advocate's or the jury's turf. State v.
Jones, 423 S.C. 631, 639–40, 817 S.E.2d 268, 272 (2018) ("There is always a
possibility that an expert witness's opinions are incorrect. However, whether to
accept the expert's opinions or not is a matter for the jury to decide. Trial courts are
tasked only with determining whether the basis for the expert's opinion is sufficiently
reliable such that it be may offered into evidence.").

Warner's reliability challenge is single-minded: he appeals the trial court's
qualification of Church only on the ground that the CSLI methodology is unreliable.
Church testified in limine that eleven courts had qualified him as an expert. The
number of times a court has qualified a witness as an expert or found a method
reliable will almost never be relevant to the trial court's Rule 702 task, as what
matters is the method's endorsement by the relevant field, not the bench. See
Daubert, 509 U.S at 593–95 (explaining reliability of scientific evidence can be
shown by acceptance of method by relevant scientific community).

When the trial court asked Church why CSLI was reliable, in addition to the response
we earlier quoted, Church added, "the best way we know it's reliable is because we
do this on a daily basis. . . . and we regularly find people that we are looking for, or
help look for, by analyzing those records." This answer may appear to resemble the
"ipse dixit1 of the expert" that Joiner found fatal to reliability. But on closer
inspection, Church's reply reveals the root of CSLI's reliability: it works.

We conclude the trial court was well within its discretion in admitting Church's CSLI
testimony as a reliable expert opinion. Church's expertise was based on his vast
experience with historical cellular records, as well as his knowledge of and
experience with how cellular phones, towers, and networks operate. The reliability
of the CSLI methodology was demonstrated by Church's own experience. The text
of Rule 702 states expertise can be based on experience. Indeed, the terms
"non-scientific expert testimony" and "experience based expert testimony" are
interchangeable. See White, 382 S.C. at 270 n. 4, 676 S.E.2d at 686 n. 4. After all,
expert and experience share the same Latin root, expiri (to test; to try). See
also Kumho, 526 U.S. at 156 (stating that "no one denies that an expert might draw
a conclusion from a set of observations based on extensive and specialized
experience").

The reliability of experience-based expertise is often proven by its success. See, e.g.,
White, 382 S.C. at 271, 676 S.E.2d at 687 (dog handler deemed reliable in part
because of his record of some 750 tracks with the same dog). A leading
commentator has stressed that when an expert's opinion is based on inferences
derived from historical facts (and that—along with the technical knowledge of how
cell networks work—is all CSLI is, in essence), a judge should measure reliability
as follows: "[T]he judge should insist on a foundation demonstrating that the expert's
technique 'works'; that is, the methodology enables the expert to accurately make the
determination as to which she proposes to testify. The foundation must include a
showing of the results when the technique was used on prior occasions. Do the
outcomes demonstrate a connection between facts A and B?" 1 McCormick on
Evidence § 13 (8th ed.) (2020). Church's testimony about his successful results did
precisely that. Our supreme court has emphasized the importance of empirical
verification to reliability. See, e.g., State v. Chavis, 412 S.C. 101, 108, 771 S.E.2d
336, 339 (2015) ("[E]vidence of mere procedural consistency does not ensure


1
  The phrase "ipse dixit," which translates as "he himself said it," was coined by
Cicero, who used it to belittle the reasoning and argumentative powers of the
followers of Pythagoras. When asked to justify their positions, the followers would
just say "ipse dixit," opting out of the merits of the debate altogether. Cicero, De
Natura Deorum, I.V. (H. Rackham trans., Loeb Classical Library 1933).
reliability without some evidence demonstrating that the individual expert is able to
draw reliable results from the procedures of which he or she consistently applies.").

In this sense of requiring proof of accuracy, Rule 702 echoes Rule 901(b)(9), SCRE,
which requires that before a process or system can be authenticated, it must be shown
the process or system "produces an accurate result." This burden is not met by a
witness who claims a report produced by the system is accurate because "we use it
in court all the time." State v. Brown, 424 S.C. 479, 487–88, 818 S.E.2d 735,
739–40 (2018) (holding such testimony insufficient to authenticate GPS records).
Church went much further than the hapless witness in Brown. Church explained
how CSLI enjoyed universal acceptance in the cellular industry as well as the law
enforcement community. See State v. Harvey, 932 N.W.2d 792, 808 (Minn. 2019)
(finding CSLI reliable based in part on industry providers' "vested interest in
maintaining accurate records" for billing and for 911 purposes).

We therefore affirm the trial court's admission of Church's CSLI testimony, and join
the many other jurisdictions that have deemed CSLI reliable enough to pass the Rule
702 gate. See, e.g., United States v. Hill, 818 F.3d 289, 298 (7th Cir. 2016)
("Historical cell-site analysis can show with sufficient reliability that a phone was in
a general area, especially in a well-populated one. The technique requires
specialized training, which Agent Raschke has and has employed successfully on
hundreds of occasions." (citation omitted)); United States v. Medley, 312 F. Supp.
3d 493, 502 (D. Md. 2018) (concluding government met burden of showing CSLI
evidence was "accurate enough and well accepted enough within the appropriate
fields of science, technology and specialized knowledge to allow admissibility");
Holbrook v. Commonwealth, 525 S.W.3d 73, 80–82 (Ky. 2017) (accord). These
three decisions offer the best analysis of CSLI, and they all conditioned their
approval of its admissibility on the witnesses' caveat that his opinion as to location
relied upon the assumption that the cell phone has connected with the closest tower.
Church made the same concession. We find no error.

                                          III.

A. Identification Testimony of Non-Eyewitness

Warner next claims his due process right to a fair trial was violated when the State
asked Goolsby to view the video and then used him as an identification witness at
trial. Due process prevents the State from using evidence so unreliable that it offends
fundamental conceptions of justice and ordered liberty. Perry v. New Hampshire,
565 U.S. 228, 237 (2012). When the police arrange a pretrial, out-of-court
identification procedure where an eyewitness to the crime identifies the defendant,
due process concerns are triggered only when the procedure is both suggestive and
unnecessary. Id. at 238–39; Neil v. Biggers, 409 U.S. 188, 196–201 (1972).
Accordingly, when a defendant challenges a pretrial identification, the first matter
the trial court must decide is whether the identification was the result of a police
procedure that was both unnecessary and suggestive. If it was not, the inquiry ends.
State v. Wyatt, 421 S.C. 306, 310, 806 S.E.2d 708, 710 (2017). But, if the procedure
was unnecessary and suggestive, due process requires suppression of the eyewitness
identification if the procedure created a "substantial likelihood of irreparable
misidentification." Biggers, 409 U.S. at 198 (quoting Simmons v. United States, 390
U.S. 377, 384 (1968)). The trial court must therefore determine whether, despite the
unnecessary and suggestive police conduct, the eyewitness identification is
nevertheless reliable.

Whether an eyewitness identification is reliable enough to be admitted is a mixed
question of law and fact within the trial court's discretion, but where the evidence
admits of a single reasonable inference, the question is one of law for this court.
State v. Moore, 343 S.C. 282, 288, 540 S.E.2d 445, 448 (2000). In Perry, the United
States Supreme Court clarified that due process does not require pretrial screening
of all eyewitness identifications, only those procured by needlessly suggestive state
action. 565 U.S. at 232–33 (holding due process not implicated when eyewitness
identified defendant on scene without police suggestion). Our supreme court has
interpreted Perry as requiring a preliminary judicial inquiry (and generally a
hearing) "once it is contended that an identification is obtained under unnecessarily
suggestive circumstances arranged by state action, regardless of the witness's prior
knowledge of the accused." State v. Liverman, 398 S.C. 130, 140, 727 S.E.2d 422,
427 (2012) (due process required pretrial identification hearing where out of court
identification procedure consisted of suggestive show-up, even though eyewitness
had long known accused).

Like the eyewitness in Liverman, Goolsby knew the defendant before the crime.
Unlike the witness in Liverman, Goolsby was not an eyewitness to the crime. This
court has held the Neil v. Biggers due process inquiry does not apply to a non-
eyewitness. State v. McGee, 408 S.C. 278, 286–87, 758 S.E.2d 730, 734–35 (Ct.
App. 2014). Further, even if delivery of the surveillance video here amounted to
"state action," we disagree it was unnecessary. The State did not create the video.
The State's use of it was necessary under the circumstances. At the time of their
contact with Goolsby, the police had just received the Crimestoppers' tip, and the
investigation was at a critical point. The armed perpetrator of a violent crime was
still on the run and had already traveled between at least two states. It would have
been impractical for the police to produce an array of videos recreating the crime
scene, casting different actors as the perpetrator, before sending them to Goolsby.
See Wyatt, 421 S.C. at 314–15, 806 S.E.2d at 712 (questioning whether less
suggestive procedures were realistic alternatives, as under the circumstances "a
lineup would be unworkable"); see also Simmons v. United States, 390 U.S. 377,
384–85 (1968) (police display of photos of bank robbery suspects to bank employee
victims day after robbery necessary; it was "essential for the FBI agents swiftly to
determine whether they were on the right track, so that they could properly deploy
their forces in Chicago and, if necessary, alert officials in other cities"); United States
v. Sanders, 708 F.3d 976, 987 (7th Cir. 2013) (holding single photographic
"show-up" was necessary when armed felon at large as police "could not have
produced a significantly less suggestive procedure without sacrificing critical time");
see generally LaFave, et al., Criminal Procedure § 7.4(b) (4th ed. 2003).

Even if sending the video to Goolsby was unnecessarily suggestive, we are confident
Goolsby's identification was reliable. See Manson v. Brathwaite, 432 U.S. 98, 114
(1977) ("[R]eliability is the linchpin" of the due process inquiry). Without disclosing
he was Warner's probation officer, Goolsby told the jury he had spent time with
Warner every month over the past nine or so months, usually for fifteen to thirty
minutes each time. He testified he was sure of his identification because he was
familiar with Warner's gait, the way he carried himself, and the way he held his
hands and shoulders, and Warner had the same height and build as the person on the
video. See, e.g., State v. Hall, 940 A.2d 645, 650, 653–54 (R.I. 2008) (single photo
of suspect shown to police officer who identified defendant as suspect was neither
suggestive nor unnecessary; suspect was object of ongoing manhunt, and
experienced officer was less likely to be affected by a "suggestive procedure"). As
Liverman noted, a witness's prior knowledge of the accused "remains a significant
factor in determining reliability" and mitigates even the extreme suggestiveness of a
show-up. 398 S.C. at 135, 141–42, 727 S.E.2d at 424, 427–28 (concluding
eyewitness's in-court identification had origins independent of suggestive taint of
police orchestrated show-up, as eyewitness was acquaintance and former neighbor
of defendant and had known him since elementary school). We affirm.

                                           IV.

A. Application of Exclusionary Rule to pre-Carpenter Warrantless Search of Cell
   Phone Records

Warner next contends the trial court erred in denying his motion to suppress the cell
records the State obtained from T-Mobile. At trial, Warner maintained the search
warrant issued by the magistrate was invalid because the records were housed in
New Jersey, and the magistrate's jurisdiction stopped at the Anderson County border.
S.C. Code Ann. § 17-13-140 (2014). The trial court agreed and found the warrant
invalid. The State did not challenge this ruling. However, the trial court still denied
Warner's motion to suppress, ruling Warner had no expectation of privacy in the T-
Mobile records based on the third party doctrine. See United States v. Miller, 425
U.S. 435, 443 (1976). As the trial court noted, the Fourth Circuit had recently used
the third party doctrine to uphold the warrantless collection of cell phone records.
See United States v. Graham, 824 F.3d 421, 437–38 (4th Cir. 2016).

While this appeal was pending, the United States Supreme Court decided Carpenter
v. United States, 138 S. Ct. 2206, 2217 (2018), which held a person has a legitimate
expectation of privacy in his cell phone records held by a third party. The court
therefore held Miller did not apply to cell phone records, and the government could
only obtain them by complying with the Fourth Amendment. We do not doubt
Carpenter applies retroactively to Warner's appeal. See Griffith v. Kentucky, 479
U.S. 314, 328 (1987).

Warner bases his claim solely on the Fourth Amendment, so the question becomes
what remedy Carpenter provides him. The United States Supreme Court separates
the retroactivity of a decision from the issue of the remedy. Davis v. United States,
564 U.S. 229, 243–44 (2011) ("[T]he retroactive application of a new rule of
substantive Fourth Amendment law raises the question whether a suppression
remedy applies; it does not answer that question."). In Davis, the Court faced the
issue of whether the remedy of suppression should be applied where the search of
the defendant was authorized at the time it was performed under the automobile
exception to the Fourth Amendment recognized by New York v. Belton, 453 U.S.
454 (1981), but became unconstitutional after Arizona v. Gant, 556 U.S. 332 (2009).
The search of Mr. Davis occurred two years before Gant but while Gant's direct
appeal was pending. In a 7-2 decision, the Court refused to apply the exclusionary
rule to the retroactive Fourth Amendment violation. The Court noted the single
purpose of the exclusionary rule is to "deter future Fourth Amendment violations."
Id. at 236–37. When the officer's actions are taken in objective good faith or involve
only isolated simple negligence, the benefit of deterrence is dwarfed by the "heavy
toll" the exclusionary system costs the justice system and society. Id. at 237–39.
The Court noted there is no deterrent effect when the Fourth Amendment error is
made by judges rather than police, as the rule was designed only to redress the
officer's misconduct. To apply the Gant rule to the search of Mr. Davis that was
authorized by Belton when it was performed, the Court reasoned, would penalize
police for the Fourth Amendment misreadings of appellate courts. The South
Carolina Supreme Court has followed Davis. See State v. Brown, 401 S.C. 82, 96,
736 S.E.2d 263, 270 (2012). Although Davis has taken on withering criticism,
mainly for what some perceive as its sabotage of retroactivity, see LaFave, Search
and Seizure: A Treatise on the Fourth Amendment § 1.3(h) (5th ed. 2012), we are
obligated to follow it.

Although the officers exceeded the Fourth Amendment when they obtained Warner's
cell phone records without a valid warrant, in light of Miller's validity at the time of
the search, their conduct was not a deliberate or reckless transgression. Like the
search in Davis, the search of Warner's records was not wrongful at the time it was
made, and no deterrent value accrues from suppressing the evidence under these
specific circumstances. Our conclusion is in accord with many state and federal
courts that have confronted the retroactivity of Carpenter and whether CSLI records
obtained without a valid warrant before Carpenter should be subject to the
exclusionary rule. See United States v. Chavez, 894 F.3d 593, 608 (4th Cir. 2018);
United States v. Goldstein, 914 F.3d 200, 203–07 (3d Cir. 2019); Reed v.
Commonwealth, 834 S.E.2d 505, 510–12 (Va. Ct. App. 2019). We therefore affirm
the denial of Warner's motion to suppress.

                                          V.

A. Admissibility of Rule 1006, SCRE Summary

Shortly after Church testified about the path of travel of Warner's cell phone, the
State sought admission of five maps from his report. Four of the maps showed the
location of the cell towers pinged by Warner's phone along I-85 between Atlanta and
the Anderson/Greenville area, included the time of access, an arrow pointing the
direction of travel, and an explanation that the "arrow indicates direction of travel."
The fifth map depicted the location and angle of two tower "wedges" Warner's phone
had accessed near the crime scene. The trial court overruled Warner's objection to
the maps and admitted them as evidence. Warner claims foul, arguing the maps
unduly highlighted Church's testimony and allowed the State to introduce
independent evidence that went beyond the underlying source documents.

Rule 1006, SCRE, provides in part that the "contents of voluminous writings,
recordings, or photographs which cannot conveniently be examined in court may be
presented in the form of a chart, summary, or calculation, provided the underlying
data are admissible into evidence." The party seeking to admit a summary must
demonstrate (1) the contents of the documents upon which the summary is based are
so voluminous it would be inconvenient to examine them in court; (2) the underlying
documents are admissible in evidence; (3) the summary is a faithful rendering of the
underlying data, and any inferences it contains are supported by the contents and are
neutral and non-argumentative; and (4) the originals or duplicates of the underlying
documents have been made reasonably available to the other parties. Rule 1006
should be interpreted in light of its intended purpose as an exception to the best
evidence rule of Rule 1002, SCRE. This does not mean a summary may not include
anything not in the contents of the underlying documents; it may contain fair
inferences and conclusions supported by the documents. 2 McCormick on Evidence
§ 241 (8th ed. 2020). But the more inferences a summary chart contains, the less
likely it will be admissible under Rule 1006, the more likely it will draw an objection
based on other grounds (including Rule 403, SCRE), and the more likely the trial
court will decide not to admit the summary as an exhibit but restrict it to being a
demonstrative aid.

The evidence underlying the maps came from Warner's phone records and the
T-Mobile tower list, both of which had been admitted. The phone records comprise
seventy-five pages of data, displayed in a format so technical that they appear as
near gibberish to the untrained eye. The most a non-expert could glean from them
would be the date, time, and duration of the calls (provided one has a familiarity with
Coordinated Universal Time and how to translate it to Eastern Standard Time, taking
into account Daylight Savings Time). The address of the tower locations had to be
established by cross-referencing the T-Mobile tower list. See Crowley v. Spivey, 285
S.C. 397, 412, 329 S.E.2d 774, 783 (Ct. App. 1985) (affirming admission of
summary of thirty-one pages of telephone records where trial court concluded
summary chart "would save the jury from having to decipher for themselves the long
and somewhat confusing" records) (pre-SCRE case); United States. v. Yousef, 327
F.3d 56, 157–58 (2d Cir. 2003) (affirming admissibility of summary of telephone
calls made by suspects in 1993 World Trade Center bombing).

The maps accurately summarized these already admitted records. Warner's real beef
seems to be with the arrow that alleged the direction of travel of Warner's phone.
But, as we have said, a summary chart is not inadmissible just because it carries an
inference supported by the underlying evidence. United States v. Spalding, 894 F.3d
173, 184–86 (5th Cir. 2018). The text of Rule 1006 authorizes admissibility of not
just a "summary" of underlying admissible data but also a "chart" or "calculation."
A calculation is an inference based on underlying data, and Church's placement of
the locations of the towers Warner's phone pinged along I-85 is his calculation of
the movement of Warner's phone in time and space. He took raw data already in
evidence—the phone and tower records—and superimposed it on a Google Earth
map that included a directional arrow, a format the jury could better understand. See
6 Weinstein's Evidence § 1006.03 (2d ed. 2019) ("Calculations are admissible to
distill quantitative information from a large quantity of material."); see also United
States v. Clements, 588 F.2d 1030, 1039 (1979) (affirming admissibility of summary
calculating gross revenue of gambling operation gleaned from 3,000 phone calls).
We recognize charts, powerpoints, and other visual depictions of evidence can be
powerful; even when they have not been admitted, jurors often ask (in vain) to see
them during deliberations. A trial court must therefore be vigilant in ensuring a Rule
1006 summary is an accurate portrayal of the underlying evidence, and that any
inferences and conclusions are faithful to that evidence and are not mere placards of
argument. 2 McCormick on Evidence, § 241 (8th ed. 2020); Mueller & Kirkpatrick,
Federal Evidence 1107 (3d ed. 2003) (summary "must fairly condense the
underlying material and cannot embellish with information not contained in the
originals. It cannot be a jury argument in disguise . . . ." (footnotes omitted)). We
conclude the maps were accurate and unembellished portrayals containing fair
inferences well anchored to the underlying, admitted documents. The trial court
exercised sound discretion over the maps, requiring the State to remove certain
captions and conclusions from them before allowing them into evidence.

It would have likewise been within the trial courts vast discretion to have not
admitted the maps, but only allowed them as demonstrative aids, and instructing the
jury of their limited purpose. Some courts call such aids "pedagogical devices," but
we won't. See United States v. Bray, 139 F.3d 1104, 1111–12 (6th Cir. 1998); United
States v. Janati, 374 F.3d 263, 273 (4th Cir. 2004). Rule 611(a), SCRE, arms the
trial court with the power to ensure evidence is presented in a manner "effective for
the ascertainment of truth" and avoids wasting time. The trial court—so better
attuned to the rhythms of the trial than we are—has wide discretion over the choice
of whether a summary should be admitted, excluded, or allowed only as a
demonstrative aid. At any rate, Warner suffered no prejudice; the maps were
cumulative to records already in evidence and Church's testimony. We affirm.

AFFIRMED.

LOCKEMY, C.J., and KONDUROS, J., concur.
