                                In the

    United States Court of Appeals
                  For the Seventh Circuit
                      ____________________
No. 14-2957
OCTAVIA MITCHELL,
                                                   Plaintiff-Appellant,

                                   v.

CITY OF CHICAGO, et al.,
                                                Defendants-Appellees.
                      ____________________

         Appeal from the United States District Court for the
           Northern District of Illinois, Eastern Division.
         No. 11-CV-2741 — Sharon Johnson Coleman, Judge.
                      ____________________

      ARGUED FEBRUARY 6, 2017 — DECIDED JULY 5, 2017
                 ____________________

   Before ROVNER and WILLIAMS, Circuit Judges, and CONLEY,
District Judge.*
    WILLIAMS, Circuit Judge. On April 24, 2010, Chicago Police
Officers pulled over eighteen year old Izael Jackson (“Jack-
son”) for a missing front license plate. He was shot three times
in the back by the officers and died the next day. Jackson’s


   *Of the Western District of Wisconsin, sitting by designation.
2                                                           No. 14-2957

mother, Octavia Mitchell (“Mitchell”), brought a civil suit for
excessive force and wrongful death against the City of Chi-
cago and the officers for the officers’ traffic stop turned hom-
icide. After months of discovery the case went to trial. The
jury returned a verdict in favor of the defendants and the dis-
trict court entered its judgment.
    On appeal, Mitchell argues that the trial court erred by ex-
cluding evidence or argument relating to a failure to test DNA
swabs recovered from the scene of the shooting. But we find
no error in the district court’s evidentiary rulings. The only
issue before the jury was whether the officers were justified in
shooting Jackson. A lack of DNA evidence, without more,
would not tend to prove or disprove the officers’ justification.
As the district court noted, there was nothing tying the shoot-
ing officers to any missing DNA evidence and it would be un-
fair to assume that testing of the DNA swabs would have
helped, or harmed, Mitchell’s case. Therefore, we affirm the
district court’s rulings which quashed Mitchell’s subpoena to
the Illinois State Police and excluded evidence relating to po-
tential DNA evidence.
                         I. BACKGROUND
   On the evening of April 24, 2010, Sergeant Cascone and
Officer Belcher, members of the Chicago Police Department’s
Mobile Strike Force, were on patrol in a marked squad car.
Officers Lopez and Gonzalez, in a second marked squad car,
were behind them following in a “wolf pack” formation.1



    1 The term “wolf packing” was used throughout the trial, and de-
scribes when officers work as a team such that one car has a tail car that
allows for instant backup.
No. 14-2957                                                      3

They spotted a white Buick, without a front license plate, trav-
eling north on State Street. The officers decided to stop the car
for the simple traffic violation and put on flashing lights. They
followed the car onto a neighborhood street and it slowed and
stopped. Izael Jackson, a passenger, got out.
    According to the officers’ testimony, Jackson immediately
began firing a weapon in the direction of the squad cars. Of-
ficer Belcher returned fire through the windshield of his pa-
trol car, while Sergeant Cascone radioed for backup. At this
point, the car sped away, leaving Jackson behind. While look-
ing over his shoulder and shooting in the direction of the po-
lice cars, Jackson began running away from the officers. As
Jackson fled, Officer Belcher fired two or three shots at him
through the windshield of the police car. Officer Gonzales
raised his rifle and began to fire at Jackson’s back as well. Jack-
son fell to the ground and stopped moving. The officers ap-
proached and Officer Lopez kicked the gun, later determined
to be a Glock Model 19 9-millimeter semi-automatic handgun,
out of Jackson’s hand and handcuffed him. Paramedics were
called, and Jackson was transported to Stroger Hospital
where he died the next morning.
    Following Jackson’s death, Mitchell filed this civil suit
bringing claims of excessive force under the Fourth Amend-
ment and the Illinois wrongful death statute against the City
of Chicago and the officers. Mitchell alleged that the shooting
death of her son was unjustified because Jackson never had a
gun and never shot at the officers.
    A jury trial was held, and Mitchell presented two eyewit-
nesses, Taza Williams and her mother, Sandra Williams. Taza
testified that she watched the shooting from her mother’s
window and saw four or five police officers chasing Jackson
4                                                  No. 14-2957

before shooting him. She also stated that it was dark but it
looked like Jackson did not have a gun. After Jackson fell to
the ground, she saw the police officers “dragging him, kicking
him, and stomping him.” Sandra, who was also watching
through the window of her home, testified that she clearly
saw Jackson run away from the police officers with his hands
up in the air and he did not have a gun. She also stated that
she saw Jackson’s mouth moving but could not hear what he
was saying. But she also stated that she clearly heard Jackson
say he did not have a gun.
    The City highlighted inconsistencies in the testimony of
Taza and Sandra and presented evidence that undermined
their credibility. The City also offered expert testimony that
showed gunshot residue was found on Jackson’s hand, which
indicated that he was holding or in close proximity to a dis-
charged firearm. Expert testimony also revealed that sixteen
expended shell casings found at the scene came from the
Glock Model 19 9-millimeter, corroborating the officers’ testi-
mony that the gun was shot from Jackson’s location. There
were no fingerprints found on the Glock Model 19 9-millime-
ter gun, which the City’s expert explained was not unusual
given the smooth surface of the gun and rain on the evening
of the shooting.
   The crime scene investigator, John J. Miller, who collected
evidence from the scene, testified that he took DNA swabs
from the Glock Model 19 9-millimeter weapon, which he re-
covered at 6102-6104 S. Prairie Street. For unknown reasons,
the DNA swabs were never tested by the Illinois State Police,
the agency responsible for testing forensic evidence in this
case. Mitchell failed to identify experts challenging the City
No. 14-2957                                                       5

experts’ testimony and did not seek testing of the DNA
swabs.
    At the close of evidence, a directed verdict was entered as
to Officers Cascone and Lopez, the two police officers who
did not fire weapons at Jackson. After short deliberations, the
jury returned a verdict in favor of the City, Sergeant Belcher,
and Officer Gonzalez on all claims. Mitchell moved for a new
trial, arguing that the district court erred in its evidentiary rul-
ings. The district court denied the motion, and Mitchell filed
this appeal.
                         II. ANALYSIS
    The ultimate outcome of this confrontation, which began
with a minor traffic stop, is undoubtedly tragic. A young man
was shot in the back and killed, and a mother now mourns
her son. The question before the jury was whether the shoot-
ing was justified, and the jury said yes. Now, the narrow issue
on appeal is whether the district court’s evidentiary rulings,
relating to DNA evidence, were proper. We address each of
these rulings in turn.
   A. No Error to Quash Illinois State Police Subpoena
   Mitchell first challenges the district court’s decision to
quash her subpoena to the Illinois State Police. This court re-
views a district court's decision of whether to quash a sub-
poena for abuse of discretion. Ott v. City of Milwaukee, 682 F.3d
552, 556 (7th Cir. 2012).
    After more than four months of discovery deadline con-
tinuances sought by Mitchell, the district court set fact discov-
ery to close on January 18, 2013 and stated that there would
be no further extensions. On August 5, 2013, several months
after the cutoff, Mitchell served a subpoena on the Illinois
6                                                    No. 14-2957

State Police Division of Forensic Sciences requesting the dep-
osition of a “person with knowledge regarding the policies
and practices of DNA testing and determining as to when and
if testing is conducted on DNA samples collected by Chicago
police officers…” The City moved to quash the subpoena as
untimely, and the court agreed.
    Mitchell argues that the court’s ruling was in error because
DNA evidence would have shown whether Jackson held the
gun and, consequently, whether the officers were reasonably
fearful of bodily harm. Mitchell argues that her case de-
pended on showing that Jackson did not hold a gun, and
DNA evidence could have proven that Jackson did not hold
the gun. While DNA evidence likely would have been rele-
vant, there was no DNA evidence because neither the Illinois
State Police nor Mitchell sought to test the swabs taken from
the gun. Furthermore, the district court did not quash a sub-
poena seeking DNA evidence as the subpoena only sought
information from a third party about its testing protocols.
    However, we need not address the potential relevance of
DNA evidence, since the district court quashed Mitchell’s
subpoena because it was too late. District judges are author-
ized to manage the schedule of cases before them, including
imposing deadlines for discovery. Fed. R. Civ. P. 16(b). These
deadlines should only be modified for good cause. Id. Even if
Mitchell’s subpoena sought relevant evidence, Mitchell failed
to offer good cause for the subpoena’s tardiness. As the dis-
trict court noted, there was ample opportunity for Mitchell to
seek discovery of the Illinois State Police’s testing protocol, or
tests of DNA swabs taken from the gun. Mitchell failed to do
so in the allocated time frame. Instead, she waited several ad-
ditional months past the deadline with no good cause for this
No. 14-2957                                                     7

delay. Therefore, the district court was within its discretion
quashing Mitchell’s subpoena. Wollenburg v. Comtech Mfg. Co.,
201 F.3d 973, 978 (7th Cir. 2000).
   B. Exclusion of Alleged Investigatory Cover-up was
      Proper
    On September 19, 2013, before trial began, the City moved
in limine to bar Mitchell from making argument or question-
ing witnesses regarding the lack of testing of DNA swabs
from Jackson’s alleged gun by Illinois State Police Forensic
Services Laboratory. The City argued that such evidence
would be irrelevant and unfairly prejudicial because the City
and the officers had nothing to do with testing DNA (the de-
cision not to test was made by the Illinois State Police) and
there was no reason to believe DNA evidence would have
helped Mitchell’s case. Mitchell asserted that DNA evidence,
had it been tested, might have shown that Jackson’s DNA was
not on the gun and a failure to test the gun was evidence of a
cover-up. The district court granted the City’s motion and ex-
cluded evidence and argument relating to a lack of DNA test-
ing for lack of relevance.
    We review the district court’s ruling on the City’s motion
in limine for an abuse of discretion. Wilson v. City of Chicago,
758 F.3d 875, 881 (7th Cir. 2014). “We will reverse only if no
reasonable person would agree with the trial court's ruling
and the error likely affected the outcome of the trial.” Perry v.
City of Chicago, 733 F.3d 248, 252 (7th Cir. 2013).
    We find no abuse of discretion in the district court’s ruling.
At trial, Mitchell was required to prove that the defendant of-
ficers did not reasonably believe that Jackson “pose[d] a
threat of serious physical harm, either to the officer[s] or to
8                                                    No. 14-2957

others,” Tennessee v. Garner, 471 U.S. 1, 11 (1985), or, under
state law, that the officers lacked justification for using deadly
force. Wilson, 758 F.3d at 880. Argument or evidence demon-
strating unavailability of DNA evidence would not tend to
make the existence of any fact that is of consequence “more
probable or less probable than it would be without the evi-
dence.” Fed. R. Evid. 401. The fact “of consequence” was
whether the officers were reasonably fearful of Jackson at the
time of the shooting—evidence reflecting the investigatory
decisions of the Illinois State Police after the City officers’
shooting could not shed light on this fact. The state agency’s
policies cannot impute anything onto the city officers’ mental
state when they pulled their triggers. Such evidence may ex-
pose a state agency in need of victim rights reform, but with-
out more, it has no tendency to prove liability under either the
Fourth Amendment or Illinois law. See, e.g., Thompson v. City
of Chicago, 472 F.3d 444, 454 (7th Cir. 2006) (“[T]his court has
consistently held that 42 U.S.C. § 1983 protects plaintiffs from
constitutional violations, not violations of … departmental
regulations and police practices.”). In our view, the district
court correctly found that testimony relating to a lack of DNA
evidence would not be relevant and the evidence was
properly excluded.
                      III. CONCLUSION
    The decisions below are AFFIRMED.
