Estate of Manuel Diaz v. City of Anaheim ( 2016 )


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  •                      FOR PUBLICATION
    UNITED STATES COURT OF APPEALS
    FOR THE NINTH CIRCUIT
    ESTATE OF MANUEL DIAZ;                            No. 14-55644
    GENEVIEVE HUIZAR, an individual,
    Plaintiffs-Appellants,                  D.C. No.
    8:12-cv-01897-
    v.                              JVS-RNB
    CITY OF ANAHEIM, a California
    municipal entity; NICK                           ORDER AND
    BENNALLACK, Officer,                              AMENDED
    Defendants-Appellees.               OPINION
    Appeal from the United States District Court
    for the Central District of California
    James V. Selna, District Judge, Presiding
    Argued and Submitted July 7, 2016
    San Francisco, California
    Filed August 24, 2016
    Amended October 27, 2016
    Before: Marsha S. Berzon and John B. Owens, Circuit
    Judges, and Algenon L. Marbley,* District Judge.
    Order;
    Opinion by Judge Owens
    *
    The Honorable Algenon L. Marbley, United States District Judge for
    the Southern District of Ohio, sitting by designation.
    2            ESTATE OF DIAZ V. CITY OF ANAHEIM
    SUMMARY**
    Civil Rights
    The panel reversed the district court’s judgment, entered
    following a jury trial in favor of defendants, in an action
    alleging that a City of Anaheim police officer used excessive
    force when he shot and killed Manuel Diaz.
    The panel held that the district court erred by refusing to
    bifurcate the liability phase from the compensatory damages
    phase of the trial and as a result the district court admitted
    inflammatory evidence introduced by the defendants that had
    no relevance to the key issue in the case, whether defendant
    acted within the law when he shot Diaz.
    The panel remanded for a new trial with guidance for the
    district court to: (1) closely review under Federal Rule of
    Evidence 401 and 403 evidence of Diaz’s drug and gang
    affiliation and admit the evidence only to the degree that it
    was connected to the reaction of Diaz’s mother to his death;
    (2) not permit expert testimony about gangs to be admitted if
    plaintiffs are willing to stipulate that Diaz was a gang
    member; (3) sufficiently consider that a limiting instruction
    may not sufficiently mitigate the prejudicial impact of certain
    evidence; and (4) when striking testimony, to clearly identify
    what testimony was improperly given, and instruct the jury
    that it may not be considered.
    **
    This summary constitutes no part of the opinion of the court. It has
    been prepared by court staff for the convenience of the reader.
    ESTATE OF DIAZ V. CITY OF ANAHEIM                   3
    The panel affirmed the district court’s denial of plaintiffs’
    motion for judgment as a matter of law on the excessive force
    claim, holding that this question was one for the jury. The
    panel noted that while plaintiffs presented substantial
    evidence that the force was unreasonable, defendants also
    presented substantial evidence to support their position.
    COUNSEL
    Dale K. Galipo (argued) and Melanie T. Partow, Law Offices
    of Dale K. Galipo, Woodland Hills, California; Angel
    Carrazco, Jr., Carrazco Law, A.P.C., Tustin, California; Paul
    L. Hoffman, Schonbrun Desimone Seplow Harris &
    Hoffman, LLP, Venice, California; Humberto Guizar,
    Humberto Guizar Law Offices, Montebello, California; for
    Plaintiffs-Appellants.
    Moses W. Johnson, IV (argued), Assistant City Attorney,
    Anaheim, California; Steven J. Rothans and Jill Williams,
    Carpenter, Rothans & Dumont, Los Angeles, California; for
    Defendants-Appellants.
    Denise L. Rocawich, James R. Touchstone, and Martin J.
    Mayer, Jones & Mayer, Fullerton, California, for Amici
    Curiae California Police Chiefs’ Association, California State
    Sheriffs’ Association, and California Peace Officers’
    Association.
    Steven J. Renick, Manning & Kass Ellrod Ramirez Trester
    LLP, Los Angeles, California, for Amicus Curiae
    International Municipal Lawyers Association.
    4           ESTATE OF DIAZ V. CITY OF ANAHEIM
    ORDER
    The opinion filed on August 24, 2016, and reported at
    
    2016 WL 4446114
    , is hereby amended. The superseding
    amended opinion will be filed concurrently with this order.
    The panel has voted to deny the petition for panel
    rehearing. Judges Berzon and Owens voted to deny the
    petition for rehearing en banc, and Judge Marbley so
    recommends.
    The full court has been advised of the suggestion for
    rehearing en banc, and no active judge has requested a vote
    on whether to rehear the matter en banc. Fed. R. App. P. 35.
    The petition for panel rehearing and rehearing en banc is
    DENIED.
    No further petitions for panel rehearing or petitions for
    rehearing en banc will be entertained.
    OPINION
    OWENS, Circuit Judge:
    Anaheim Police Officer Nicholas Bennallack shot and
    killed Manuel Diaz during a mid-day encounter in July 2012.
    Diaz’s estate and mother (“Plaintiffs”) sued Officer
    Bennallack and the City of Anaheim (“Defendants”) for
    federal civil rights violations and proceeded to a jury trial, but
    lost. Plaintiffs argue they should receive a new trial due to
    inflammatory evidence introduced by Defendants that had no
    ESTATE OF DIAZ V. CITY OF ANAHEIM                  5
    relevance to the key issue in the case—whether Officer
    Bennallack acted within the law when he shot Diaz. Because
    the district court abused its discretion in failing to bifurcate
    liability from compensatory damages—thus admitting this
    evidence at the liability phase of the trial—and the error was
    harmful, we reverse and remand.
    I. FACTS AND PROCEDURAL HISTORY
    A. Fatal Shooting of Manuel Diaz
    While on routine patrol in gang territory the afternoon of
    July 21, 2012, Officers Bennallack and Heitmann drove their
    unmarked black Crown Victoria into an alley off of Anna
    Drive in Anaheim, California. They were not responding to
    a call or plea for help, though Bennallack had arrested a man
    for gun possession there two weeks prior.
    In the alley, Bennallack saw Diaz and another man
    standing near a parked vehicle, with a third man inside.
    Bennallack neither recognized Diaz nor saw anything in his
    hands. But, Bennallack thought that criminal activity was
    afoot, and that Diaz was a gang member, based on his
    experience in the area and how Diaz was dressed.
    Shortly after the officers drove into the alley, and before
    they said anything to Diaz, Diaz ran away. The officers
    pursued on foot. Officer Heitmann said he saw Diaz
    clutching an object near his waist before he took off, but
    Bennallack—the shooter—did not. While initially hoping to
    have a consensual conversation with Diaz, once the chase
    began Bennallack intended to arrest him for the misdemeanor
    offense of resisting, obstructing, or delaying a police officer.
    6                 ESTATE OF DIAZ V. CITY OF ANAHEIM
    As the officers chased Diaz, they could not see his hands.
    Based on how Diaz’s arms were not “pumping” as expected
    and the outward position of his elbows, Bennallack claimed,
    he thought Diaz’s hands were in his waistband. Another
    witness did not see Diaz put his hands at his waistband. Both
    officers said that Diaz looked back at them while he was
    running away, which they took as his attempt to “acquire a
    target.”
    The officers yelled commands such as “stop,” “get on the
    ground,” and “show me your hands,” but Diaz kept running,
    and eventually went through a gate and into a courtyard.
    Bennallack was roughly five to ten feet behind Diaz during
    the chase. Bennallack testified that at one point, Diaz
    possibly could have exited through a gate to the street, but did
    not.1 The officers took this as an escalation of danger, fearing
    that Diaz was hoping to lure them into an enclosed space to
    shoot them.
    Diaz then slowed down. Witnesses disagreed about his
    movements at this point. Bennallack said Diaz turned to his
    left, while Heitmann said he turned to his right. One witness
    did not see him turn or make any threatening movements,
    while another saw Diaz turn in a non-threatening manner
    when the police told him to get on the ground.
    As Diaz started to turn, Bennallack claimed to see a black
    cloth object going over a fence close to Diaz . Bennallack
    said that he believed Diaz had a gun in a “low-ready” position
    in front of his body, ready to fire. According to Bennallack,
    as Diaz turned and Bennallack saw the object in the air, he
    fired twice. When Bennallack shot Diaz, he could not see
    1
    Bennallack did not recall whether that gate was open, closed, or ajar.
    ESTATE OF DIAZ V. CITY OF ANAHEIM                       7
    any part of his arms or hands. The shots occurred within one
    to two seconds after Diaz started to slow down; Bennallack
    made no lethal force warning. The first bullet entered Diaz’s
    right buttock and was lodged in his left thigh. The second
    bullet entered the right side of Diaz’s head, just above and
    behind his right ear, and exited the left side of his head near
    his left ear. Diaz was handcuffed and searched. He died
    shortly thereafter at a nearby hospital. Officers found a black
    cell phone and narcotics pipe nearby. No firearm was
    recovered from the scene.
    B. Pretrial Litigation
    Diaz’s estate and his mother, Genevieve Huizar, brought
    suit against the City of Anaheim and Officer Bennallack.2
    Huizar sought only non-economic damages, i.e., her loss of
    Diaz’s love, companionship, comfort, care, assistance,
    protection, affection, society, and moral support.
    A number of Plaintiffs’ claims were disposed of by
    stipulation and the district court’s partial grant of Defendants’
    motion for summary judgment. By trial, Plaintiffs’ remaining
    claims included three claims under 42 U.S.C. § 1983
    (excessive force and unreasonable detention under the Fourth
    Amendment and unlawful interference with familial relations
    2
    Plaintiffs filed suit in California Superior Court, and Defendants
    removed the action to the District Court for the Central District of
    California.
    8            ESTATE OF DIAZ V. CITY OF ANAHEIM
    under the Fourteenth Amendment) and one claim for battery
    under California state law.3
    a. Motions In Limine
    The parties filed a number of motions in limine, some of
    which are relevant on appeal.
    Gang Affiliation: The district court ruled that evidence
    that Anna Drive was a known gang area was relevant to
    liability, but that Diaz’s gang affiliation was relevant only to
    damages—the theory being that his gang membership
    undermined the strength of his mother’s love for him and
    their relationship. The court excluded photographs of his
    gang tattoos, but noted it would revisit this issue if Diaz’s
    mother testified with respect to damages that she had no
    knowledge of his gang affiliation.
    Photographs: The court in principle agreed with
    Defendants that photographic evidence from Diaz’s cell
    phone and Facebook page that Diaz possessed a weapon prior
    to the incident was relevant to the excessive force analysis
    under Boyd v. City & County of San Francisco, 
    576 F.3d 938
    ,
    943–44 (9th Cir. 2009). However, the court indicated it
    would likely exclude as irrelevant photos of gang activities
    and stacks of money.
    Drug Usage: The court ruled that because Defendants did
    not offer evidence that Bennallack observed Diaz behaving
    erratically during the incident, toxicology evidence of
    3
    During trial, Plaintiffs withdrew their Fourteenth Amendment claim.
    The district court refused to submit the unreasonable detention claim to
    the jury because it lacked sufficient evidence.
    ESTATE OF DIAZ V. CITY OF ANAHEIM                  9
    methamphetamine use was not relevant to § 1983 liability.
    Defendants also asserted that the toxicology evidence was
    relevant to damages, but the court’s written order rejected this
    theory.
    Gang Expert: The court permitted Daniel Gonzalez, a
    gang expert, to opine on Diaz’s gang membership, but only
    as relevant to damages. The court noted that his gang
    affiliation had limited relevance to the amount of damages,
    and any testimony should be brief. The court also stated that
    if the parties agreed to stipulate to Diaz’s gang membership,
    it would reconsider its decision to allow Gonzalez to testify.
    The court specifically excluded as unduly prejudicial
    testimony about gang activities in general; that Anna Drive
    was part of the gang’s turf (as Bennallack would testify to
    this and it was undisputed); and any of Diaz’s specific gang
    activities.
    b. Motion To Bifurcate
    Plaintiffs also moved to bifurcate the liability phase from
    the damages phase of the trial, to avoid the risk that
    prejudicial information unknown to Officer Bennallack at the
    time of the shooting—such as Diaz’s gang membership,
    related photos, and drug usage—would taint the jury’s
    consideration of Bennallack’s use of deadly force. The
    district court granted this motion in part, severing punitive
    damages from liability and compensatory damages. The
    district court briefly explained that neither prejudice nor the
    complexity of the issues warranted bifurcating liability from
    compensatory damages, and that limiting instructions would
    cure any potential prejudice. The record is unclear as to why
    the court bifurcated punitive damages but not compensatory
    damages.
    10          ESTATE OF DIAZ V. CITY OF ANAHEIM
    c. Trial
    After a six-day trial, the jury deliberated for less than two
    hours before returning a verdict that Officer Bennallack did
    not use excessive or unreasonable force.4 However, during
    trial—and over Plaintiffs’ repeated objections—the district
    court’s evidentiary rulings strayed from its pretrial rulings.
    As a result, the jury was exposed to a copious amount of
    inflammatory and prejudicial evidence with little (if any)
    relevance.
    i. Improper Evidence of Diaz’s Gang
    Membership
    The most troubling evidence admitted at trial related to
    Diaz’s gang membership. There was wide-ranging testimony
    from Defendants’ gang expert, Gonzalez. There were also
    photographs featuring Diaz’s tattoos and him posing with
    guns and throwing gang signs, none of which Bennallack
    knew about or had seen when he shot Diaz.
    In ruling on the motions in limine, the district court held
    that evidence of Diaz’s gang affiliation was relevant only to
    damages, because Officer Bennallack did not know he was a
    gang member. The court also specifically excluded evidence
    of Diaz’s gang tattoos themselves, such as photographs,
    because such evidence was unnecessary to establish the fact
    that he was a gang member. The court later recognized
    generally that “[p]hotographs have the potential for both
    relevant evidence and gratuitous provocation of the jury.”
    4
    The parties agreed that the jury finding regarding excessive force
    would also be dispositive of the state battery claim.
    ESTATE OF DIAZ V. CITY OF ANAHEIM                  11
    Further, before trial the court had warned that if Diaz’s
    mother testified she had no knowledge of his gang affiliation,
    the court would revisit its ruling on the admissibility of
    evidence of Diaz’s tattoos. The court also noted that if
    Plaintiffs stipulated that Diaz was a gang member, it would
    reconsider its decision regarding the testimony of the gang
    expert. At trial, Diaz’s mother was somewhat equivocal as to
    whether she knew her son was a gang member.5 Though
    Plaintiffs then offered to stipulate to his gang membership,
    the district court ultimately permitted the gang expert to
    testify, explaining that:
    Given [Diaz’s mother’s] testimony, I think
    [the defense is] entitled to put the gang expert
    on. It has got to be narrow and it’s got to be
    focused on his gang membership, not the
    activities of the gang at large. I don’t think
    the plaintiff at this time is entitled to basically
    5
    She testified as follows:
    Q: Do you acknowledge that your son was a member
    of the East Side Anaheim street gang?
    A: I have come to find out more after his death. I
    loved my son, and maybe I didn’t know a lot about
    him during those times. It doesn’t mean I didn’t
    love him any less.
    Q: No one is disputing that, Ms. Huizar. Are you
    indicating you did not know at that time that he
    was a member of the East Side Anaheim street
    gang?
    A: I’m not sure how to answer because I never
    thought of him as a gang member.
    12            ESTATE OF DIAZ V. CITY OF ANAHEIM
    rehabilitate the testimony and rewrite the
    record.
    The court then ruled that Defendants could offer photographs
    of Diaz’s gang tattoos and him throwing gang signs, as well
    as other information related to his gang moniker, clothing,
    and association. When Plaintiffs’ counsel questioned the
    court’s change of heart regarding the admission of the tattoo
    photographs—which it had initially excluded—the court
    remarked, “[w]ell, I think they’re entitled to put in probative
    evidence. She hasn’t straight up admitted that he was a gang
    member. I don’t think the tattoos are inflammatory. They are
    what they are.” In contrast, the court excluded discussion of
    specific gang activities, and any additional photographs of
    Diaz with guns, as some already had been admitted as to
    liability under a “gang gun” theory.6 But Defendants again
    were permitted to present the previously admitted gun
    photographs to the jury—in one, Diaz held a gun in his left
    hand and made a gang sign with his right. In another, he
    pointed a gun to his head.
    6
    Defendants’ explanation for why no firearm was found at the scene
    was that Diaz was armed with a shared “gang gun” that a fellow gang
    member retrieved and removed after the shooting. As such, the court
    admitted photographs of Diaz posing with guns two days before the
    shooting, ostensibly under the auspices of Boyd. 
    See 576 F.3d at 944
    (“In
    a case such as this, where what the officer perceived just prior to the use
    of force is in dispute, evidence that may support one version of events
    over another is relevant and admissible.”). As Officer Bennallack never
    saw a gun, we have reservations about the admissibility of this evidence
    even as to liability. But we need not reach this question, as Plaintiffs have
    not meaningfully raised the issue on appeal and we reverse on bifurcation
    grounds.
    ESTATE OF DIAZ V. CITY OF ANAHEIM                      13
    The testimony of gang expert Gonzalez was highly
    prejudicial—so much so that the court gave the jury an early
    limiting instruction soon after he testified. Before giving the
    instruction, the district court stated in a sidebar that:
    Unquestionably this gang evidence at least to
    his gang membership is inflammatory, and
    frankly the witness made it a point to expand
    his answers on every question. Most answers
    were beyond the scope of the question. Some
    objections were made which I sustained; some
    weren’t.
    The district court rightly pointed out Gonzalez’s testimony
    was both inflammatory and beyond the scope permitted by
    the court—as were some of the questions defense counsel
    posed.7
    For example, when asked “Why do gang members pose
    with guns?” Gonzalez responded: “It goes into their image,
    their persona of being a gang member, showing other gang
    members that they have firearms readily accessible, that they
    have means to commit crimes against the general public,
    against law enforcement, against rival gang members.”
    (emphasis added). When asked “Why do gang members wear
    baggy T-shirts?” he responded in part: “Another reason that
    I have come to learn about is that it helps conceal items like
    firearms, other deadly weapons. It’s easier to put a rifle or a
    7
    Several questions were so irrelevant to establishing gang membership
    or the gang gun theory that the district court sustained Plaintiffs’
    objections before Gonzalez could answer. For example, defense counsel
    asked, “why do gang members post their photographs on Facebook?” and
    “what’s the significance of gang members associating with one another?”
    14         ESTATE OF DIAZ V. CITY OF ANAHEIM
    sawed-off shotgun down your shorts or your pants when
    you’ve got baggy pants on and a baggy shirt.” Gonzalez also
    was permitted to testify to several things which the court
    originally had excluded as unduly prejudicial under Rule 403
    during the motions in limine, including that Anna Drive was
    part of the gang’s turf and gang activities in general. He
    further testified about Diaz’s gang moniker—“Stomper”—
    and then repeatedly used the moniker to refer to Diaz. The
    jury also learned that Gonzalez personally had arrested Diaz
    on a prior occasion.
    Some of Gonzalez’s testimony was formally “stricken”
    from the record. The following pattern arose: after improper
    testimony, Plaintiffs’ counsel would move to strike the
    testimony and the district court would state “stricken” or “the
    last part of the answer will be stricken.” During one stretch,
    this pattern occurred on five different occasions in seven
    minutes. Gonzalez was neither warned nor reprimanded, save
    for the district court directing him at the very end of his
    testimony to “[p]lease just answer the questions asked.”
    In summary, Gonzalez’s testimony did not hew to the
    district court’s direction to be “narrow” and “focused on his
    gang membership, not the activities of the gang at large.”
    Instead, Gonzalez took every opportunity to opine on matters
    squarely forbidden by the court’s previous rulings. As a
    result, the jury was exposed to inflammatory testimony that
    was wholly irrelevant to liability, and of limited relevance
    even as to damages.
    ii. Improper Evidence of Diaz’s Drug Use
    Further, despite its original hesitation, the district court
    ultimately ruled that the toxicology evidence was relevant to
    ESTATE OF DIAZ V. CITY OF ANAHEIM                         15
    damages,8 and Defendants proceeded to similarly stretch this
    ruling. In contrast, the court found that the toxicology
    evidence was not relevant to § 1983 liability, as Officer
    Bennallack did not know or suspect that Diaz was under the
    influence of drugs at the time of the incident.
    But beyond any marginal relevance of Diaz’s drug use to
    damages—again, because it supposedly undermined his
    mother’s claim that she loved her son—the evidence at trial
    fixated on his drug use on the day of the incident and how it
    may have affected his behavior, which had no relevance to
    his mother’s loss. Indeed, the singular focus of the drug-use
    testimony was Diaz’s toxicological status on the day he was
    shot, a risk which the district court recognized when it first
    ruled on the issue pretrial. At the time, the court “reject[ed]
    the contention that drug intoxication on the date of the
    incident goes to damages. At most, it establishes his
    condition on just one day. Any further inference would be
    unsupported and unduly prejudicial.”
    To this end, Defendants’ toxicology expert, Dr. Clark,
    discussed the high levels of methamphetamine in Diaz’s
    blood when he died, and opined that he was intoxicated when
    he was shot:
    Those levels—actually there are some people
    who die with levels that high, but not in this
    8
    The timing and rationale underlying the court’s final ruling is not
    evident from the record on appeal. Defendants had argued that Diaz’s
    drug use was relevant to Ms. Huizar’s claim for the loss of her relationship
    with her son, particularly in light of her testimony that Diaz was often not
    permitted to live with her and her husband in part because he did not
    follow their rule banning drug use.
    16         ESTATE OF DIAZ V. CITY OF ANAHEIM
    case. And those levels are actually quite high
    as far as what we would think of as
    recreational use of methamphetamine. But
    those levels are high enough since we aren’t
    certain of his tolerance to the drug that we can
    say he was without a doubt under the
    influence at the time of his death[.]
    Dr. Clark also described the behavioral effects of
    methamphetamine use and how it may have affected Diaz’s
    behavior on July 21:
    We know methamphetamines can be
    dangerous, and we know it affects people
    different ways. It can cause euphoria. It can
    cause hallucinations. It can cause people to
    become paranoid, can cause them to become
    violent; and it can cause them to use poor
    judgment. That’s pretty much common
    knowledge.
    From my review of the facts in this case, it’s
    possible that methamphetamine at the levels
    of which were measured at autopsy could
    have caused Mr. Diaz to use poor judgment in
    what ended up happening in this case.
    While the court granted Plaintiffs’ motion to strike the second
    part of the response as lacking medical probability, the jury
    already had been exposed to this testimony. This was also the
    second time a defense expert improperly speculated as to how
    drug use may have affected Diaz’s judgment the day of the
    shooting. Even after his earlier testimony was “stricken,” Dr.
    Clark continued to focus on the day of the incident. He
    ESTATE OF DIAZ V. CITY OF ANAHEIM                17
    testified that Diaz had likely ingested methamphetamine
    within six hours of the shooting, and concluded “to a
    reasonable medical probability” that “[Diaz] was under the
    influence of methamphetamine at the time [of the shooting].”
    II. DISCUSSION
    A. The Trial Court Erred in Failing To Bifurcate
    Liability from Compensatory Damages
    Judges have wide latitude in conducting their trials, and
    for good reason. See, e.g., Zivkovic v. S. Cal. Edison Co.,
    
    302 F.3d 1080
    , 1088 (9th Cir. 2002). This is why the rules
    permit bifurcation, and why we usually affirm a trial judge’s
    decision—to either bifurcate or keep things together—as
    within her discretion. But this discretion is not limitless.
    a. Standard of Review
    We review for abuse of discretion the district court’s
    rulings on whether to bifurcate a trial. Exxon Co. v. Sofec,
    Inc., 
    54 F.3d 570
    , 575 (9th Cir. 1995). Under this standard,
    we reverse only when we are “convinced firmly that the
    reviewed decision lies beyond the pale of reasonable
    justification under the circumstances.” Harman v. Apfel,
    
    211 F.3d 1172
    , 1175 (9th Cir. 2000).
    Federal Rule of Civil Procedure 42(b) permits a court to
    order a separate trial of separate claims or issues “[f]or
    convenience, to avoid prejudice, or to expedite and
    economize.” A court might bifurcate a trial to “avoid[] a
    difficult question by first dealing with an easier, dispositive
    issue,” Danjaq LLC v. Sony Corp., 
    263 F.3d 942
    , 961 (9th
    Cir. 2001), or to avoid the risk of prejudice. See Quintanilla
    18         ESTATE OF DIAZ V. CITY OF ANAHEIM
    v. City of Downey, 
    84 F.3d 353
    , 356 (9th Cir. 1996)
    (explaining that, in a § 1983 case challenging the use of a
    police dog during a search, the trial court bifurcated the trial
    of the individual officers from that of the city in part to avoid
    prejudice). Further, “[i]t is clear that Rule 42(b) gives courts
    the authority to separate trials into liability and damage
    phases.” De Anda v. City of Long Beach, 
    7 F.3d 1418
    , 1421
    (9th Cir. 1993); see also 9A Charles A. Wright & Arthur R.
    Miller, Federal Practice & Procedure § 2390 (3d ed. 2016)
    (“The separation of issues of liability from those relating to
    damages is an obvious use for Federal Rule 42(b).”).
    b. Discussion
    Here, under the guise of impeaching Huizar’s testimony
    that she loved her son, Defendants introduced (over repeated
    objection) photographs of Diaz posing with firearms and
    making gang signs. Then Gonzalez expounded on the
    activities and customs of violent gangs and described Diaz’s
    moniker of “Stomper,” his criminal history, and his tattoos in
    great detail. Dr. Clark speculated as to how the enormously
    high level of methamphetamine in Diaz’s system at the time
    of the shooting may have affected his response to the police.
    It is hard to see how most of this testimony was relevant even
    to damages, absent testimony—of which there was none—
    that Ms. Huizar knew of the photographs, gang signs, and
    drug use on the day of the offense, and that that knowledge
    undermined the emotional impact of her son’s death. And
    there was also highly prejudicial testimony that was under
    any circumstances not relevant to liability or damages. For
    example, Gonzalez stated that gang members require access
    to firearms to “use them in self-defense . . . against police
    ESTATE OF DIAZ V. CITY OF ANAHEIM                           19
    officers” and pose with firearms publicly to show “that they
    have means to commit crimes . . . against law enforcement.”9
    This was simply overkill. Considering that the parties and
    district court had repeated trouble tracking precisely why this
    prejudicial evidence was admissible for any purpose, no jury
    could properly compartmentalize it. For example, on the
    fourth day of trial, the court and parties were still not clear
    about whether the fact that Diaz was under the influence of
    drugs was relevant to liability under a comparative fault
    defense, even after Plaintiffs had dropped their negligence
    claim.10 Even assuming that a portion of this evidence had
    some relevance to damages, it never should have been
    combined with the liability phase.
    Indeed, this court has recognized time and time again that
    gang evidence has the potential to be particularly prejudicial.
    See, e.g., Kennedy v. Lockyer, 
    379 F.3d 1041
    , 1055 (9th Cir.
    2004) (“Our cases make it clear that evidence relating to gang
    involvement will almost always be prejudicial[.]”); United
    States v. Takahashi, 
    205 F.3d 1161
    , 1165 (9th Cir. 2000)
    (holding the district court did not abuse its discretion in
    admitting evidence of gang membership where the court
    9
    This testimony was ostensibly “stricken” from the record as described
    above.
    10
    Prior to Dr. Clark’s testimony—and outside the presence of the jury—
    Plaintiffs’ counsel inquired as to the relevance of his testimony, in light of
    the fact that they had dropped the negligence claim. Defendants argued
    that the toxicology evidence went not only to damages but also to liability
    (as relevant to a comparative fault defense), and the court remarked that
    “[w]e need to sort that issue out.” No further discussion occurred before
    Dr. Clark testified, though the court ultimately gave a limiting instruction
    that Diaz’s drug use was relevant only to damages.
    20           ESTATE OF DIAZ V. CITY OF ANAHEIM
    “recognized the need to prevent undue prejudice,” gave a
    limiting instruction, excluded photographs of gang tattoos as
    evidence of membership, and minimized repetition of the
    gang’s name).
    Similarly, even if evidence of Diaz’s drug use were
    relevant to damages, the form and nature of the evidence
    presented regarding his drug use on the day of the incident
    was unduly prejudicial in light of the decision not to
    bifurcate. It would have been far more relevant to damages
    for an expert to testify simply to the presence of drugs in
    Diaz’s body and to the effects of drug use on relationships.
    The focus on the day of the incident was minimally probative
    of damages, and was highly likely to influence improperly the
    jury’s evaluation of Officer Bennallack’s use of force, when
    he never suggested he thought Diaz may have been
    intoxicated.11
    Further, the district court already had bifurcated punitive
    damages. Bifurcating from the liability phase the testimony
    actually relevant to compensatory damages would have cost
    11
    In urging en banc review, amici curiae California Police Chiefs’
    Association et al. argue that our decision conflicts with Boyd, which
    upheld a district court’s decision to admit drug usage evidence to
    corroborate the police officers’ testimony that the decedent was acting
    erratically. 
    Boyd, 576 F.3d at 943
    –45. Yet here, the district court
    exercised its discretion and prohibited the introduction of Diaz’s drug use
    for liability purposes because there was no evidence that Diaz was acting
    erratically. See supra at 9. Diaz’s drug usage was only admissible to
    undermine any damages award. See supra at 14–17. The officers did not
    appeal that ruling, and do not cite Boyd as an alternative means to affirm
    the judgment. Simply put, the Boyd argument that amici now raise is not
    an issue in this appeal.
    ESTATE OF DIAZ V. CITY OF ANAHEIM                          21
    little, if any, court time—none, if the jury had returned a
    defense verdict.
    Because the district court abused its discretion in refusing
    to bifurcate the compensatory damages phase (thereby
    allowing in this unduly prejudicial evidence of drugs and
    gangs), we reverse. Under these circumstances, the court’s
    bifurcation ruling was “beyond the pale of reasonable
    justification under the circumstances.” 
    Apfel, 211 F.3d at 1175
    . To be clear, we are not announcing a rule that requires
    district courts always, usually, or frequently to bifurcate
    damages from liability. District courts still have the broad
    discretion to make these decisions. But where, as here,
    graphic and prejudicial evidence about the victim has little,
    and in large part no, relevance to the liability issue, district
    courts should bifurcate to avoid situations like the one before
    us.12
    In light of our decision to reverse the judgment and
    remand for a new trial, we also provide some guidance to the
    district court.
    12
    In light of our ruling, we do not reach the issue of whether Plaintiffs’
    failure to make a Rule 50(a) motion as to the unlawful detention claim
    barred review of the district court’s dismissal of that claim sua sponte
    before the close of evidence. We do observe, however, that requiring a
    litigant to make a Rule 50(a) motion for judgment as a matter of law on a
    claim no longer before the jury appears, at first blush, futile. See
    Velazquez v. City of Long Beach, 
    793 F.3d 1010
    , 1018 (9th Cir. 2015) (“A
    motion for judgment as a matter of law may be granted if ‘the court finds
    that a reasonable jury would not have a legally sufficient evidentiary basis
    to find for the party on that issue[.]’” (quoting Fed. R. Civ. P. 50(a))). We
    also do not reach whether Plaintiffs are entitled to a new trial under Rule
    59(a) based on the district court’s evidentiary rulings or formulation of
    jury instructions.
    22         ESTATE OF DIAZ V. CITY OF ANAHEIM
    First, the evidence of Diaz’s drug use and gang affiliation
    has marginal, if any, probative value as to damages, and none
    as to liability. On retrial, the district court should closely
    review this evidence under Federal Rules of Evidence 401
    and 403, and should assure that such evidence is admitted
    only to the degree that the testimony is connected up with Ms.
    Huizar’s reaction to her son’s death.
    Second, if Plaintiffs are willing to stipulate that Diaz was
    a gang member (which they claim they tried to do during
    trial), no expert testimony about gangs—such as gang
    activities, tattoos, or monikers—should be admitted.
    Bennallack can certainly testify as to his knowledge about
    gang activity in the area. See Graham v. Connor, 
    490 U.S. 386
    , 397 (1989) (holding that to determine whether police
    force is excessive, the proper inquiry is “whether the officers’
    actions are ‘objectively reasonable’ in light of the facts and
    circumstances confronting them”).
    Third, while there is a “strong presumption that jurors
    follow instructions,” a limiting instruction may not
    sufficiently mitigate the prejudicial impact of evidence in all
    cases. See Miller v. City of Los Angeles, 
    661 F.3d 1024
    , 1030
    (9th Cir. 2011); Bayramoglu v. Estelle, 
    806 F.2d 880
    , 888
    (9th Cir. 1986) (“A timely instruction from the judge usually
    cures the prejudicial impact of evidence unless it is highly
    prejudicial or the instruction is clearly inadequate.” (quoting
    United States v. Berry, 
    627 F.2d 193
    , 198 (9th Cir. 1980))).
    The Advisory Committee Note to Federal Rule of Evidence
    403 also recognizes the potential inadequacies of a limiting
    instruction, counseling that “[i]n reaching a decision whether
    to exclude on grounds of unfair prejudice, consideration
    should be given to the probable effectiveness or lack of
    effectiveness of a limiting instruction.” And if a limiting
    ESTATE OF DIAZ V. CITY OF ANAHEIM                       23
    instruction was considered sufficient to cure all prejudice,
    there would be no need ever to bifurcate to avoid prejudice in
    other cases; yet in the civil rights context, courts often
    bifurcate the trials of individual officers from municipalities
    to avoid such prejudice. See, e.g., 
    Quintanilla, 84 F.3d at 356
    (“The district court . . . in the interest not only of convenience
    and judicial economy but also the avoidance of potential
    prejudice and confusion, bifurcated the trial of the individual
    police officers from the Chief and city.”); Green v. Baca,
    
    226 F.R.D. 624
    , 633 (C.D. Cal. 2005) (“Bifurcation is
    appropriate . . . to protect the individual officer defendants
    from the prejudice that might result if a jury heard
    evidence regarding the municipal defendant’s allegedly
    unconstitutional policies.”).
    And fourth, if the district court is going to sustain an
    objection and grant a motion to strike, merely saying
    “stricken” does not sufficiently inform the jury about the
    proper use of the evidence it just heard. When striking
    testimony, the court should clearly identify what testimony
    was improperly given, and should instruct the jury that it may
    not be considered. It should also use a sidebar or brief recess
    to warn the witnesses and attorneys that further attempts to
    push the envelope could lead to greater sanctions, such as
    exclusion of testimony or a negative instruction.13 After all,
    13
    See, e.g., Barnett v. Norman, 
    782 F.3d 417
    , 422–23 (9th Cir. 2015)
    (outlining powers of district judge to ensure witness complies with court
    order); United States v. Panza, 
    612 F.2d 432
    , 439 (9th Cir. 1979) (“We
    can only speculate as to the effect on the jury of the striking of the
    testimony.” (citing United States v. Cardillo, 
    316 F.2d 606
    , 612 n.3 (2d
    Cir. 1963)); 
    Cardillo, 316 F.2d at 612
    n.3 (“The effectiveness of such
    procedures after the testimony has been heard by the jury has been the
    subject of speculation, metaphysical and otherwise, by jurists and trial
    lawyers for generations.”).
    24           ESTATE OF DIAZ V. CITY OF ANAHEIM
    lawyers and witnesses, like misbehaving children or rattled
    basketball players, sometimes need a timeout.14
    B. The Trial Court Did Not Err in Ruling Force
    Was Not Excessive as a Matter of Law
    Plaintiffs also appeal the district court’s denial of their
    motion for judgment as a matter of law on their excessive
    force claim. Because the district court correctly ruled that
    this question was one for the jury, we affirm its denial of
    Plaintiffs’ motion.
    a. Standard Of Review
    “We review de novo the district court’s denial of a Rule
    50(b) renewed motion for judgment as a matter of law. The
    test is whether ‘the evidence, construed in the light most
    favorable to the nonmoving party, permits only one
    reasonable conclusion, and that conclusion is contrary to that
    of the jury.’” White v. Ford Motor Co., 
    312 F.3d 998
    , 1010
    (9th Cir. 2002), amended on denial of reh’g, 
    335 F.3d 833
    (9th Cir. 2003) (footnote omitted) (quoting Forrett v.
    Richardson, 
    112 F.3d 416
    , 419 (9th Cir. 1997)). We “may
    not make credibility determinations or weigh the evidence.”
    Reeves v. Sanderson Plumbing Prods., Inc., 
    530 U.S. 133
    ,
    150 (2000).
    Where an “excessive force claim arises in the context of
    an arrest or investigatory stop of a free citizen, it is most
    14
    Cf. United States v. McKoy, 
    771 F.2d 1207
    , 1213 (9th Cir. 1985) (“We
    have often noted that the trial court may be able to ‘neutralize’ the effect
    of improper prosecutorial remarks by admonishing counsel to refrain from
    such remarks or by giving appropriate curative instructions to the jury.”).
    ESTATE OF DIAZ V. CITY OF ANAHEIM                 25
    properly characterized as one invoking the protections of the
    Fourth Amendment.” 
    Graham, 490 U.S. at 394
    . As with
    other Fourth Amendment claims, we inquire “whether the
    officers’ actions are ‘objectively reasonable’ in light of the
    facts and circumstances confronting them, without regard to
    their underlying intent or motivation.” 
    Id. at 397.
    We determine whether challenged state actions are
    objectively reasonable by balancing “‘the nature and quality
    of the intrusion on the individual’s Fourth Amendment
    interests’ against the countervailing governmental interests at
    stake.” 
    Id. at 396
    (quoting Tennessee v. Garner, 
    471 U.S. 1
    ,
    8 (1985)). This demands a “fact-intensive inquiry requiring
    attention to all circumstances pertinent to the need for the
    force used.” 
    Velazquez, 793 F.3d at 1024
    . We “first
    consider[] the nature and quality of the alleged intrusion; we
    then consider the governmental interests at stake by looking
    at (1) how severe the crime at issue is, (2) whether the suspect
    posed an immediate threat to the safety of the officers or
    others, and (3) whether the suspect was actively resisting
    arrest or attempting to evade arrest by flight.” Mattos v.
    Agarano, 
    661 F.3d 433
    , 441 (9th Cir. 2011) (en banc) (citing
    Deorle v. Rutherford, 
    272 F.3d 1272
    , 1279–80 (9th Cir.
    2001)). These factors are not exclusive. 
    Id. b. Discussion
    Here, while Plaintiffs presented substantial evidence that
    the force was unreasonable, Defendants also presented
    substantial evidence to support their position. When each of
    the Graham factors is analyzed, the record does not “permit[]
    only one reasonable conclusion . . . contrary to that of the
    jury.” 
    White, 312 F.3d at 1010
    (citation omitted).
    26         ESTATE OF DIAZ V. CITY OF ANAHEIM
    i. Severity of the Crime or Other
    Circumstances to Which the Officers
    Were Responding
    It is undisputed that the only crime Diaz had committed,
    if any, was a misdemeanor, and that Officer Bennallack had
    no information that a crime was reported in the area.
    However, Bennallack was aware of an ongoing criminal
    investigation in the area involving the sale and possession of
    firearms by the East Side Anaheim Gang, and believed Diaz
    to be a gang member.
    ii. Immediate Threat To Officer Safety
    While Officer Bennallack testified that he never saw
    Diaz’s hands, or a weapon on his person, certain indicia could
    have led a reasonable officer to believe Diaz was armed. For
    example, Bennallack observed that rather than pumping his
    arms as he ran, Diaz was “reaching towards his waistband”
    and appeared to be manipulating an object with his hands.
    Bennallack also testified that Diaz looked back at the officers
    multiple times, as if to acquire a target. Finally, instead of
    running through a gate that led to the street, Diaz led the
    officers into a fenced-in area, and Bennallack observed Diaz
    begin to slow down, assume a “low-ready” position, and turn
    towards him.
    On the other hand, in addition to the fact that Bennallack
    never saw Diaz’s hands or a weapon on his person, other
    evidence weighs against an immediate threat to officer safety.
    For example, Diaz was shot in the back, which could refute
    Bennallack’s testimony that he was turning. While the jury
    was entitled to weigh this evidence and Bennallack’s
    credibility against other evidence and the credibility of
    ESTATE OF DIAZ V. CITY OF ANAHEIM                  27
    witnesses who offered alternative versions of events, we must
    view the evidence in the light most favorable to Defendants.
    Certainly “a simple statement by an officer that he fears
    for his safety or the safety of others is not enough.” 
    Deorle, 272 F.3d at 1281
    . Nevertheless, Defendants presented facts
    demonstrating why such fear could have been reasonable
    here, including observations of Diaz’s movements, flight
    route, the presence of gang activity in the area, and his refusal
    to comply with the officers’ orders. Cf. 
    id. (explaining that
    the officer using force knew the plaintiff “had discarded his
    crossbow following [the officer’s] instructions to do so, and
    carried only a bottle or a can with him at the time he was
    shot”). Even if Bennallack’s subjective fear is discounted,
    much of his testimony focused on observations during the
    encounter and how he interpreted the situation based on his
    training, which the jury could reasonably credit.
    iii. Attempting To Evade Arrest by Flight
    It is undisputed that Diaz was running from the officers
    and did not obey their commands to stop, put his hands up, or
    get on the ground. That Diaz was slowing down at the time
    of the shooting does not compel the conclusion that he was
    complying with the officers’ orders, nor does it prove that he
    was preparing to shoot the officers. These are both
    reasonable interpretations of the evidence. The jury was
    entitled to choose between them based on their weighing of
    the evidence and the witnesses’ credibility.
    In sum, taking the evidence in the light most favorable to
    Defendants, these facts do not warrant judgment for Plaintiffs
    as a matter of law.
    28          ESTATE OF DIAZ V. CITY OF ANAHEIM
    III.   CONCLUSION
    Police shootings are often the most difficult—and
    divisive—cases that our legal system and society encounter.
    Wrapped in strong emotion and often opaque case law, they
    can perplex even our most experienced trial judges, like the
    judge in this case. To avoid the runaway case—like this one,
    where the Defendants and their witnesses repeatedly
    overstepped the judge’s rulings—courts should use
    bifurcation to corral lawyers and witnesses, so the jury hears
    only evidence relevant to the issues at hand. Here, that was
    whether Officer Bennallack acted lawfully when he shot
    Diaz. Because the jury heard considerable and inflammatory
    evidence that had nothing to do with that question, we
    REVERSE and REMAND this case for a new trial.