Orlando Lopez v. Trent Allen ( 2022 )


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  •                      FOR PUBLICATION
    UNITED STATES COURT OF APPEALS
    FOR THE NINTH CIRCUIT
    ORLANDO LOPEZ,                                    No. 19-16606
    Petitioner-Appellant,
    D.C. No.
    v.                           3:17-cv-03390-
    WHA
    TRENT ALLEN, ∗ Acting Warden of
    Salinas Valley State Prison,
    Respondent-Appellee.                 OPINION
    Appeal from the United States District Court
    for the Northern District of California
    William Alsup, District Judge, Presiding
    Argued and Submitted December 7, 2021
    San Francisco, California
    Filed September 2, 2022
    Before: Susan P. Graber and Daniel P. Collins, Circuit
    Judges, and Jennifer Choe-Groves, ** Judge.
    ∗
    William Muniz is no longer the warden of Salinas Valley State
    Prison and is automatically substituted in this case by his successor,
    Acting Warden Trent Allen. Fed. R. Civ. P. 25(d).
    **
    The Honorable Jennifer Choe-Groves, Judge for the United States
    Court of International Trade, sitting by designation.
    2                         LOPEZ V. ALLEN
    Opinion by Judge Choe-Groves;
    Dissent by Judge Graber
    SUMMARY ***
    Habeas Corpus
    The panel affirmed the district court’s denial of Orlando
    Lopez’s habeas corpus petition challenging his California
    conviction for multiple crimes resulting from a shooting at a
    backyard barbecue.
    Lopez raised several ineffective assistance of counsel
    claims under Strickland v. Washington, 
    466 U.S. 688
     (1984),
    and the panel applied AEDPA deference to the state habeas
    courts’ denial of relief.
    Lopez argued that trial counsel was ineffective for failing
    to consult, appoint, and introduce evidence at trial from an
    expert on firearms and firearms acoustics. The prosecution’s
    theory of the case was that two shooters, Paul Braden and
    Lopez, participated in the shooting both using shotguns.
    Lopez argued that an expert could have created reasonable
    doubt as to Lopez’s guilt by providing testimony that the
    different sounds described by witnesses suggested that the
    second shooter did not use a shotgun, which would have
    pointed towards Kevin Stone as the second shooter because
    the evidence showed that he carried a .22 caliber rifle.
    Taking as true that trial counsel failed to consult with an
    ***
    This summary constitutes no part of the opinion of the court. It
    has been prepared by court staff for the convenience of the reader.
    LOPEZ V. ALLEN                         3
    expert at all, the panel held that even assuming that this
    failure fell below an objective standard of reasonableness, it
    did not create the necessary prejudice to warrant relief.
    Lopez argued that trial counsel was ineffective for failing
    to introduce expert testimony on the behavior of chronic
    methamphetamine users, which would have demonstrated
    that Stone was prone to impulsive and violent acts and that
    his testimony was unreliable. Noting that Stone’s drug
    addiction and criminal history were made known during the
    trial, the panel held that it was not objectively unreasonable
    for the state habeas court to conclude that trial counsel's
    conduct was not constitutionally deficient and that any error
    that might have occurred did not create sufficient prejudice
    to call into question the outcome of the case.
    Lopez argued that trial counsel was ineffective for failing
    to use Stone’s prior inconsistent statements to impeach Stone
    and Sergeant Clements. The panel held that a reasonable
    jurist could conclude that trial counsel’s decision to not
    impeach Stone and Sergeant Clements with the prior
    statements was not objectively unreasonable, and that the
    state court could reasonably conclude that there is not a
    reasonable probability that the outcome of the proceedings
    would have been different if trial counsel had more
    forcefully attempted to impeach them.
    Lopez argued that trial counsel was ineffective for failing
    to introduce evidence of the respective heights of those
    involved in the shooting. The panel held that even if trial
    counsel’s failure to address the respective heights fell below
    professional standards, a reasonable jurist could conclude
    that the outcome of the trial would not have been different if
    trial counsel had done so.
    4                     LOPEZ V. ALLEN
    Lopez argued that trial counsel was ineffective for failing
    to request a jury instruction on the need to corroborate
    accomplice testimony. The panel held that a reasonable
    jurist could conclude that any error by counsel in failing to
    request such an instruction was harmless and did not create
    sufficient prejudice to meet the Strickland standard.
    Lopez argued that the cumulative impact of trial
    counsel’s individual deficiencies was sufficiently prejudicial
    to warrant habeas relief. The panel held that because Lopez
    failed to establish multiple errors of constitutional
    magnitude, there can be no accumulation of prejudice
    amounting to a denial of due process or meeting the
    Strickland standard.
    Dissenting, Judge Graber wrote that Lopez’s trial
    counsel provided ineffective assistance by failing to consult
    with and failing to introduce evidence from an expert in
    firearm acoustics, that no fairminded jurist could reasonably
    conclude that there was no prejudice, and that the California
    courts’ conclusion to the contrary unreasonably applied
    Strickland.
    COUNSEL
    Matthew Dirkes (argued), Boersch & Illovsky LLP,
    Oakland, California; Dylan Schaffer, Kerley Schaffer LLP,
    Oakland, California; for Petitioner-Appellant.
    Arthur P. Beever (argued), Deputy Attorney General; Peggy
    S. Ruffra, Supervising Deputy Attorney General; Jeffrey M.
    Laurence, Senior Assistant Attorney General; Rob Bonta,
    Attorney General; Office of the Attorney General, San
    Francisco, California; for Respondent-Appellee.
    LOPEZ V. ALLEN                           5
    OPINION
    CHOE-GROVES, Judge:
    Petitioner Orlando Lopez, a state prisoner, appeals the
    district court’s denial of his petition for habeas corpus
    brought pursuant to 
    28 U.S.C. § 2254
    . Petitioner asserts that
    the California state court unreasonably applied Strickland v.
    Washington, 
    466 U.S. 688
     (1984), in determining that he did
    not receive ineffective assistance of trial counsel. We
    disagree and affirm.
    FACTUAL AND PROCEDURAL BACKGROUND
    Petitioner was convicted of multiple crimes resulting
    from a shooting at a June 18, 2011 backyard barbecue. Eight
    days prior to the shooting, a fight occurred at a high school
    graduation ceremony involving Petitioner’s brother,
    Leonardo Lopez; 1 Josh Gamble; Joseph Armijo; and a group
    called the “Avenue Boyz.” During the fight, Leonardo
    struck Gamble in the eye. Tensions remained high during
    the week following the fight.
    On or around June 14, 2011, Petitioner attended a party
    at the home of Leonardo and Leonardo’s then-girlfriend.
    During the party, Anthony Gaston brought a shotgun to the
    home, which he left between some boxes on the porch with
    the intention of retrieving the weapon later. Petitioner was
    standing next to Leonardo when Gaston asked Leonardo for
    permission to leave the gun. Gaston testified that he did not
    see the shotgun again after leaving it at Leonardo’s home.
    1
    For clarity, Orlando Lopez will be referred to throughout as
    “Petitioner” and Leonardo Lopez will be referred to as “Leonardo.”
    6                     LOPEZ V. ALLEN
    On the day of the shooting, a graduation party was held
    at Leonardo’s home. Members of the Avenue Boyz, Paul
    Braden, and Petitioner were in attendance. During the party,
    Braden argued with Ross Sparks and a woman named
    Crystal Pearls over the phone. Ross Sparks was Gamble’s
    cousin. Witnesses to the conversation testified that they
    overheard Braden say, “Let’s meet up and handle this,” and
    “I’ll kill you. I’ll kill your family.” Petitioner was also
    involved in the conversation and was described by witnesses
    as “pretty irritated” and agitated and overheard attempting to
    arrange a place to fight. A series of aggressive text messages
    were also exchanged in which the sender identified himself
    as “Nano,” a nickname used by Petitioner. Ross Sparks
    claimed that he called the sender, recognized Petitioner’s
    voice, and heard Petitioner threaten to “bash me and my
    family’s face in with the lead pipe that his brother hit
    [Gamble] in the face with.” After the telephone and text
    message exchanges, a group discussed the possibility of
    fighting Ross Sparks.
    Petitioner and Braden left the party and returned with a
    black shotgun wrapped in a sweatshirt. Braden then took the
    gun into a garage and removed the weapon’s stock with a
    saw. Petitioner was present for the gun’s alteration. After
    modifying the weapon, Braden made several statements
    suggesting his intent to use the gun, including “I didn’t bring
    this gun to Clearlake for nothing. Let’s go use it,” “I’m
    bored, let’s go shoot somebody,” and “I didn’t bring my gun
    for nothing, we need to go do this.” Braden also expressly
    stated his desire to “[w]alk down to [Ross Sparks’] home and
    start shooting them.” Petitioner was present for these
    statements.
    At approximately 7:00 p.m., a man named Kevin Stone
    received a series of text messages from Petitioner’s phone
    LOPEZ V. ALLEN                                7
    number asking for a ride and stating that he had “a lick” and
    “straps.” 2 When the party disbanded between 9:30 p.m. and
    10:00 p.m., Stone and his girlfriend picked up Petitioner and
    Braden. Braden was carrying the shotgun wrapped in a
    sweatshirt when he left the party. Stone testified that
    Petitioner was carrying “something similar” to Braden’s
    gun. One witness testified that Petitioner “wasn’t holding
    anything” when he left the party.
    Trial testimony established that Stone was a
    methamphetamine addict and dealer. Stone admitted that he
    used methamphetamines frequently and that, on the day of
    the shooting, he drank multiple alcoholic beverages. After
    picking up Braden and Petitioner, Stone retrieved a
    .22 caliber rifle from his girlfriend’s apartment.
    On the same evening, a backyard barbecue was held at
    Ross Sparks’ home. Some participants from the earlier
    graduation fight attended the barbecue. Stone drove
    Petitioner and Braden to the area of Ross Sparks’ home and
    the men entered a neighbor’s backyard. The yards were
    separated by a six-foot-tall wooden fence. Between
    10:30 p.m. and 10:45 p.m., gunshots were fired from the
    fence area into Ross Sparks’ yard. Witnesses described
    seeing muzzle flashes from a notch in the top of the fence
    and a gap in the fence created by two missing boards. The
    shooting resulted in the death of a four-year-old child and
    injuries to five other people. After the shooting, police
    observed holes in the wall of Ross Sparks’ home consistent
    with 9-shot and 15-shot buckshot. They also recovered three
    2
    Stone explained at trial that a “lick” is slang for getting something
    for nothing, such as committing a robbery, and “straps” is slang for
    firearms.
    8                      LOPEZ V. ALLEN
    expelled shotgun shells that an expert opined had previously
    been cycled through the same gun.
    Stone was interviewed three times following his arrest.
    The first interview occurred on July 1, 2011 with Sergeant
    Clements and Detective Alvarado of the Clearlake Police
    Department. During the interview, Stone did not state
    whether Petitioner or Braden had a gun when they were
    picked up from Leonardo’s home. He identified only Braden
    as having fired shots into Ross Sparks’ yard. A second
    interview of Stone was conducted on November 3, 2011 and
    involved Sergeant Clements, Lake County District Attorney
    Anderson, and Stone’s attorney. Stone again only identified
    Braden as a shooter. Unlike his earlier statement, Stone
    claimed that Petitioner also had a shotgun that he was given
    by Leonardo and that he observed Petitioner pass through the
    fence. Stone told the interviewers that he was unsure if
    Petitioner had fired the shotgun. A third interview of Stone
    was conducted on May 15, 2012 with District Attorney
    Anderson and Stone’s attorney. During the third interview,
    Stone continued to claim that both Petitioner and Braden had
    shotguns and that Braden fired into Ross Sparks’ yard.
    Stone’s account changed from the prior interviews in that he
    stated that Petitioner and Braden both had shotguns when
    they were picked up from Leonardo’s home and that he only
    observed Petitioner stepping away from the fence and could
    not tell if Petitioner stepped through the fence. Prior to trial,
    Stone entered into a plea agreement with the prosecution and
    testified against Braden and Petitioner. As part of the
    agreement, he pled no contest to accessory to murder after
    the fact, conspiracy to commit robbery, and possession of a
    firearm by a prohibited person. The agreement reduced
    Stone’s potential sentence from life in prison to roughly ten
    years of incarceration.
    LOPEZ V. ALLEN                         9
    At trial, after disclosing the plea agreement and his
    immunity, Stone testified that Petitioner and he had
    exchanged text messages on the day of the shooting in which
    Petitioner asked Stone if he was interested in “pulling a lick”
    and claimed to have “straps.” Stone also testified that
    Braden fired several rounds from a shotgun over the fence
    and that he observed Petitioner holding a shotgun, but never
    witnessed it being fired. Stone admitted that his earlier claim
    that he saw Petitioner stepping through the fence was based
    on the preliminary hearing testimony of others, not his own
    recollection of events. Despite this clarification, Stone’s
    prior account was reiterated during the testimony of Sergeant
    Clements.
    Descriptions of the shooting provided by other witnesses
    varied considerably. The area around the fence was dark and
    many of the witnesses conceded to being intoxicated or
    otherwise impaired at the time of the shooting. Some
    witnesses testified that the shooting lasted a few seconds.
    One witness believed the shooting to have lasted for several
    minutes. Some of the witnesses described the firearms used
    during the shooting as having different sounds. Other
    witnesses described the shots as sounding similar to one
    another. Two witnesses testified that they could not perceive
    a difference in acoustics because they were in shock and
    their ears were ringing after the first shot. Two witnesses
    attributed the sounds that they described to differences in
    ammunition rather than differences in weapons.
    Petitioner was convicted of one count of first-degree
    murder, five counts of attempted murder, six counts of
    assault with a firearm, two counts of mayhem, and one count
    of discharging a firearm at an occupied dwelling. He was
    sentenced to a prison term of 311 years to life. Petitioner
    and Braden appealed their convictions to the California
    10                        LOPEZ V. ALLEN
    Court of Appeal. The state appellate court reversed
    Petitioner’s first-degree murder conviction under People v.
    Chiu, 
    325 P.3d 972
     (Cal. 2014), superseded by statute on
    other grounds as stated in People v. Lewis, 
    491 P.3d 309
    ,
    313 n.3 (Cal. 2021), 3 ordered that the sentences for mayhem
    be stayed, and affirmed the remaining judgment. People v.
    Lopez, No. A136253, 
    2016 WL 634651
     (Cal. Ct. App. Feb.
    17, 2016) (unpublished).
    Petitioner also filed a petition for habeas corpus with the
    California Court of Appeal, raising arguments of ineffective
    assistance of counsel. The court denied the petition by
    summary order on the same day the direct appeal was
    resolved. One justice dissented, concluding “that [Lopez]
    has articulated a prima facie case for relief concerning his
    claim of ineffective assistance of counsel based on trial
    counsel’s failure to present testimony from a firearms expert
    regarding firearms acoustics, warranting issuance of an order
    to show cause.” Petitioner subsequently filed a petition for
    habeas corpus with the California Supreme Court, which
    denied the petition summarily.
    Petitioner filed a federal habeas petition under 
    28 U.S.C. § 2254
     with the United States District Court for the Northern
    District of California. The district court denied the petition,
    and Petitioner filed a timely notice of appeal. We remanded
    to the district court to determine whether to grant a certificate
    of appealability, and the district court denied the certificate
    after concluding that “reasonable jurists would not ‘find the
    district court’s assessment of the constitutional claims
    debatable or wrong.’” We proceeded to grant a certificate of
    3
    The court found that it was possible that the jury improperly based
    its verdict on that count on the natural and probable cause doctrine of
    aiding and abetting.
    LOPEZ V. ALLEN                         11
    appealability on the issue of “whether trial counsel rendered
    ineffective assistance, including whether counsel was
    ineffective for failing to obtain a firearms expert to testify on
    firearms acoustics.”
    STANDARD OF REVIEW
    We review the district court’s dismissal of a habeas
    petition de novo. Gulbrandson v. Ryan, 
    738 F.3d 976
    , 986
    (9th Cir. 2013). The Antiterrorism and Effective Death
    Penalty Act of 1996 (“AEDPA”) applies because the petition
    was filed after April 24, 1996. Woods v. Sinclair, 
    764 F.3d 1109
    , 1120 (9th Cir. 2014). Under AEDPA, federal courts
    may grant a writ of habeas corpus only if the state court’s
    adjudication of claims on the merits “resulted in a decision
    that was contrary to, or involved an unreasonable application
    of, clearly established Federal law, as determined by the
    Supreme Court of the United States,” or “was based on an
    unreasonable determination of the facts in light of the
    evidence presented in the State court proceeding.” 
    28 U.S.C. § 2254
    (d).
    In Strickland v. Washington, 
    466 U.S. 668
     (1984), the
    Supreme Court defined the “benchmark for judging any
    claim of ineffectiveness” as “whether counsel’s conduct so
    undermined the proper functioning of the adversarial process
    that the trial cannot be relied on as having produced a just
    result.” 
    Id. at 686
    . To prevail on a claim of ineffective
    assistance of counsel, Petitioner must establish that his
    counsel’s performance was constitutionally deficient and
    that the deficiency prejudiced the defense. 
    Id. at 687
    .
    Federal habeas review is highly deferential to the state courts
    and a petition should only be granted to correct “extreme
    malfunctions in the state criminal justice systems.” Greene
    v. Fisher, 
    565 U.S. 34
    , 38 (2011) (citation omitted). Relief
    is warranted only when “the state court’s ruling on the claim
    12                     LOPEZ V. ALLEN
    being presented in federal court was so lacking in
    justification that there was an error well understood and
    comprehended in existing law beyond any possibility for
    fairminded disagreement.” Harrington v. Richter, 
    562 U.S. 86
    , 103 (2011).
    DISCUSSION
    Petitioner raises several ineffective assistance of counsel
    claims based on: (1) trial counsel’s failure to consult and
    introduce the expert testimony of a firearms and firearms
    acoustics expert; (2) trial counsel’s failure to introduce
    expert testimony on the behavior of chronic
    methamphetamine users; (3) trial counsel’s failure to
    impeach Stone and Sergeant Clements with Stone’s prior
    inconsistent statements; (4) trial counsel’s failure to
    introduce evidence of the respective heights of those
    involved in the shooting; (5) trial counsel’s failure to request
    a jury instruction on the need to corroborate accomplice
    testimony; and (6) the aggregate failure to attempt any of the
    foregoing actions during his representation of Petitioner.
    We are not persuaded by any of the arguments raised.
    A. Firearms and Firearms Acoustics Expert
    Petitioner’s initial argument is that trial counsel was
    ineffective for failing to consult, appoint, and introduce
    evidence at trial from an expert on firearms and firearms
    acoustics. The prosecution’s theory of the case was that two
    shooters, Paul Braden and Petitioner, participated in the
    shooting both using shotguns. Two pieces of evidence were
    offered in support of Petitioner having a shotgun during the
    shooting. The first was Anthony Gaston’s testimony that
    Petitioner knew that a single-action shotgun was stored on
    the porch of Leonardo’s home, and the shotgun went missing
    after Gaston left it there. The second was Stone’s testimony
    LOPEZ V. ALLEN                         13
    that he saw Petitioner with a shotgun at the scene of the
    shooting. Petitioner argues that an expert could have created
    reasonable doubt as to Petitioner’s guilt by providing
    testimony that the different sounds described by witnesses
    suggested that the second shooter did not use a shotgun.
    That would have pointed towards Stone as the second
    shooter, because the evidence showed that he carried a
    .22 caliber rifle.
    Because the California Court of Appeal and the
    California Supreme Court both summarily denied
    Petitioner’s habeas petition, we must apply AEDPA
    deference to their conclusion that Petitioner did not state a
    prima facie case for relief. See Cullen v. Pinholster,
    
    563 U.S. 170
    , 188 n.12 (2011); Nunes v. Mueller, 
    350 F.3d 1045
    , 1054 (9th Cir. 2003). In doing so, “we assume that the
    factual allegations in [Petitioner’s] [state] habeas petition are
    true.” Reis-Campos v. Biter, 
    832 F.3d 968
    , 973 (9th Cir.
    2016). Accordingly, we take as true that Petitioner’s trial
    counsel failed to consult an acoustics expert at all. Even
    assuming that this failure fell below an objective standard of
    reasonableness, it did not create the necessary prejudice to
    warrant habeas relief.
    In support of his petitions in both the state and federal
    courts, Petitioner offered the declaration of Ben Tisa, a
    firearms expert, which concludes, based on the accounts of
    witnesses, that the second gun used during the shooting was
    a .22 caliber rifle carried by Stone. Witness accounts of the
    shooting varied considerably regarding the number of shots
    fired, the sounds of the weapons, and the duration of the
    event. Though multiple witnesses provided accounts of the
    shooting, Tisa relies primarily on the testimony of only four
    people: Ross Sparks, Josh Gamble, Andrew Sparks, and Ian
    Griffith. In his analysis, Tisa cherry-picks details provided
    14                     LOPEZ V. ALLEN
    by these witnesses and largely ignores conflicting facts. For
    example, Tisa relies on a statement made by Ross Sparks
    during a preliminary hearing in which Ross Sparks stated
    that he believed one of the weapons to be a lower-sized rifle
    or pistol. Tisa does not acknowledge that at trial Ross Sparks
    testified that he believed both weapons to have been
    shotguns using different types of ammunition. Similarly,
    Tisa discusses Andrew Sparks’ recollection of the number of
    shots fired and the location of the shooters, but does not
    acknowledge that Andrew Sparks attributed the difference in
    sound to the types of ammunition used and testified that he
    was certain that the guns were both shotguns.
    Tisa’s declaration suffers from multiple weaknesses that
    would have been readily apparent to a jury and exploitable
    by opposing counsel. Tisa does not acknowledge the
    considerable discrepancy in testimony regarding the sounds
    of the weapons, the number of shots fired, and the duration
    of the shooting. The declaration is largely silent as to the
    fact that multiple witnesses testified to being impaired by
    drugs, alcohol, darkness, or the loud sound of the initial shot.
    Tisa also fails to address whether any acoustic differences
    observed by the witnesses might be attributable to different
    types of ammunition, as was suggested by witnesses during
    the trial. Some of these problems in the witness testimony
    were noted by trial counsel in his closing statement.
    The opinions in the declaration that are less dependent
    on witness testimony are also open to scrutiny. Tisa opines
    that a single-action shotgun was unlikely to be the weapon
    used because it could not have been fired more than once
    during the timeframe of the shooting. It is unclear, however,
    how long the shooting lasted because witness testimony
    ranged from a few seconds to three minutes. Regardless,
    LOPEZ V. ALLEN                         15
    even if Petitioner were only able to fire a single shot, it would
    have been enough to warrant conviction.
    Tisa also discounts the possibility of a single-action
    shotgun being used, because he noted that expended shell
    casings consistent with a single-action shotgun were not
    found after the shooting. This opinion fails to consider the
    possibility that Petitioner collected and removed any
    expended shell casings from the scene. In light of Tisa’s
    observation that the slowness of a single-action shotgun is
    the result of expended shell casings requiring manual
    ejection, this possibility would be reasonable.
    Because Tisa’s declaration is conclusory, lacks
    consideration of contrary evidence, and fails to address
    counterarguments that are readily apparent, a reasonable
    jurist would not be compelled to find its absence from trial
    sufficiently prejudicial.
    Furthermore, the jury at trial was presented with
    considerable evidence to challenge Stone’s partially
    incriminating testimony, in which he asserted that Petitioner
    had a shotgun during the shooting event. The jury was made
    aware of Stone’s drug use, criminal history, prior
    inconsistent statements, and motive to lie. Trial counsel
    emphasized these points to the jury during his closing
    statement. The jury was also aware that Petitioner had a
    possible motive to participate in the shooting and that
    Petitioner involved Stone in the crime by inviting him to
    participate in a robbery and claiming to have guns.
    Considering these facts, a reasonable jurist could conclude
    that there is not a reasonable probability that the outcome of
    the proceedings would have been different if the testimony
    of an expert had been presented.
    16                    LOPEZ V. ALLEN
    B. Methamphetamine Expert
    Petitioner argues that the prosecution relied heavily on
    the testimony of Stone and that trial counsel had an
    obligation to highlight evidence that might have suggested
    Stone was the second shooter. He specifically points to trial
    counsel’s failure to present expert testimony on the
    behavioral impact of Stone’s chronic methamphetamine use.
    Petitioner asserts that such testimony would have
    demonstrated that Stone was prone to impulsive and violent
    acts and that his testimony was unreliable.
    An attorney’s complete failure to investigate and offer
    evidence in support of defense theories may be
    constitutionally deficient, see Hendricks v. Calderon,
    
    70 F.3d 1032
    , 1040 (9th Cir. 1995); however, an attorney is
    not required to offer evidence that is unnecessary or
    redundant, see Bonin v. Calderon, 
    59 F.3d 815
    , 837–38 (9th
    Cir. 1995) (recognizing that a reasonable attorney would not
    provide witness declarations or undertake the expense of
    requiring witnesses to travel to merely reiterate facts already
    supported by substantial evidence). Stone’s drug addiction
    and criminal history were made known during the trial. On
    direct examination, Stone conceded that his drug use at the
    time of the shooting was “pretty bad” and “pretty much
    controlled [his] life.” He also admitted to consuming two
    Tilts—an alcoholic energy drink—in the hours leading up to
    the shooting. Trial counsel emphasized Stone’s drug use,
    likely intoxication, and criminal conduct during his closing
    statement. In light of these facts, it was reasonable for the
    California court to conclude that trial counsel’s strategic
    determination to forego the use of an addiction expert was
    not objectively unreasonable.
    Furthermore, Petitioner has not demonstrated that he
    suffered prejudice from trial counsel’s choice to not present
    LOPEZ V. ALLEN                      17
    testimony on Stone’s drug use. As the Supreme Court of
    California has recognized, “[t]he effect of drugs, while
    certainly a proper subject of expert testimony, has become a
    subject of common knowledge among laypersons.” People
    v. Yeoman, 
    72 P.3d 1166
    , 1218 (Cal. 2003). Even the expert
    presented by Petitioner in support of his habeas petition
    characterized the association between alcohol and violent
    crime as “well known” in his declaration. The common
    knowledge that drug and alcohol use can impair decision
    making or lead to violent acts would have been known to the
    jurors, regardless of whether such facts were reinforced by
    an expert’s opinion or specific scientific data. It was
    reasonable for the state habeas court to conclude that trial
    counsel’s conduct was not constitutionally deficient and that
    any error that might have occurred did not create sufficient
    prejudice to call into question the outcome of the case.
    C. Witness Impeachment
    Petitioner contends that trial counsel’s failure to use
    Stone’s prior statements to impeach Stone and Sergeant
    Clements constituted ineffective assistance of counsel.
    Certain details provided by Stone during his three pre-trial
    interviews and in his testimony at trial were inconsistent,
    including whether Petitioner possessed a weapon during the
    shooting and passed through the gap in the fence. Petitioner
    argues that trial counsel’s decision to not address these
    inconsistencies weakened his ability to discredit Stone’s
    unfavorable testimony and prejudiced the defense.
    Trial counsel’s strategies, including the treatment of
    witnesses, are entitled to deference on review. Brown v.
    Uttecht, 
    530 F.3d 1031
    , 1036 (9th Cir. 2008). And because
    we view the state court’s resolution of that question only
    through the lens of AEDPA, our review is “doubly
    deferential.” Knowles v. Mirzayance, 
    556 U.S. 111
    , 123
    18                    LOPEZ V. ALLEN
    (2009). The record suggests that trial counsel considered
    Stone to be a mixed witness, offering testimony that was
    both favorable and unfavorable to Petitioner. During his
    cross-examination of Stone, trial counsel elicited from Stone
    a statement that he did not believe that Petitioner fired a
    firearm and that he was “very certain” that Petitioner “was
    not shooting” during the incident. Trial counsel also
    referenced the changing details of Stone’s account, noting
    that it was only after receiving a plea deal that Stone claimed
    that Petitioner had a gun during the shooting. These
    inconsistencies were raised again during trial counsel’s
    closing statement. Trial counsel also stressed that Stone
    consistently stated that Braden was the only person he
    observed shooting into Ross Sparks’ yard. Considering
    these facts, a reasonable jurist could conclude that trial
    counsel’s decision to not impeach Stone and Sergeant
    Clements with Stone’s prior inconsistent statements was not
    objectively unreasonable.
    The decision to not impeach Stone and Sergeant
    Clements with Stone’s prior inconsistent statements was also
    not sufficiently prejudicial. As previously noted, the jury
    was well aware of Stone’s drug addiction, criminal history,
    and motivation to lie, which were stressed by trial counsel
    during closing statements. The jury was also aware that
    Stone’s account of the events surrounding the shooting had
    changed. After Sergeant Clements testified that Stone had
    stated in an interview that he had seen Petitioner “coming
    back through an opening in the fence,” Stone himself
    effectively impeached that prior statement by testifying that
    it had been based on the testimony of others at the
    preliminary hearing. Because the jury was in a position to
    weigh the testimony of Stone, the state habeas court could
    reasonably conclude that there is not a reasonable probability
    that the outcome of the proceedings would have been
    LOPEZ V. ALLEN                       19
    different if trial counsel had more forcefully attempted to
    impeach Stone or Sergeant Clements.
    D. Heights of Suspects
    Petitioner argues that trial counsel rendered ineffective
    assistance by not introducing evidence regarding the
    respective heights of Braden, Stone, and himself. Gamble
    described the individual shooting over the fence as about six
    feet tall and the individual shooting through the gap in the
    fence as slightly shorter than six feet tall. Petitioner
    contends that Braden is over six feet tall and that Petitioner
    is five feet, six inches tall. Trial counsel established that
    Stone is six feet tall.
    Even if trial counsel’s failure to address the respective
    heights of Braden, Stone, and Petitioner during trial fell
    below professional standards, it was not sufficiently
    prejudicial. The jury was provided with Petitioner’s booking
    photo, which reflected his height. The jury was also able to
    directly observe the three men because Braden and Petitioner
    were tried jointly and Stone testified at the trial. The
    reliability of Gamble’s estimation of the shooters’ heights is
    questionable because Gamble conceded that he “wasn’t
    paying that close attention” and that it was difficult to make
    out details of the shooter because of the darkness. Sparks
    also testified that it was difficult to see the shooters and
    opined that they appeared to be kneeling. Additionally,
    substantial other evidence was available for the jury to
    consider in determining the identities of the shooters.
    Because Petitioner did not suffer sufficient prejudice, a
    reasonable jurist could conclude that the outcome of the trial
    would not have been different if trial counsel had expressly
    raised the respective heights of Braden, Stone, and
    Petitioner.
    20                        LOPEZ V. ALLEN
    E. Accomplice Testimony Jury Instruction
    Under California law, “[a] conviction [cannot] be had
    upon the testimony of an accomplice unless it be
    corroborated by such other evidence as shall tend to connect
    the defendant with the commission of the offense . . . .” 
    Cal. Penal Code § 1111
    . Petitioner contends that trial counsel
    should have obtained a pre-trial ruling on Stone’s
    accomplice status, raised the need for corroboration during
    his opening and closing statements, requested a modification
    of pattern jury instruction 301, 4 and requested the use of
    pattern jury instruction 335. 5
    4
    “[Unless I instruct you otherwise,] (T/the) testimony of only one
    witness can prove any fact. Before you conclude that the testimony of
    one witness proves a fact, you should carefully review all the evidence.”
    Single Witness Testimony, Cal. Crim. Jury Inst. 301.
    5
    If the crime[s] of 
    (was/were) committed, then  (was/were) [an] accomplice[s] to
    (that/those) crime[s].
    You may not convict the defendant of  based on the (statement/ [or] testimony) of
    an accomplice alone. You may use (a statement/ [or]
    testimony) of an accomplice that tends to incriminate
    the defendant to convict the defendant only if:
    1. The accomplice’s (statement/ [or] testimony) is
    supported by other evidence that you believe;
    LOPEZ V. ALLEN                              21
    The lack of a jury instruction on corroboration of
    accomplice testimony was considered on direct appeal. 6 The
    2. That supporting evidence is independent of the
    accomplice's (statement/ [or] testimony); AND
    3. That supporting evidence tends to connect the
    defendant to the commission of the crime[s].
    Supporting evidence, however, may be slight. It does
    not need to be enough, by itself, to prove that the
    defendant is guilty of the charged crime, and it does
    not need to support every fact (mentioned by the
    accomplice in the statement/ [or] about which the
    witness testified). On the other hand, it is not enough
    if the supporting evidence merely shows that a crime
    was committed or the circumstances of its
    commission. The supporting evidence must tend to
    connect the defendant to the commission of the crime.
    [The evidence needed to support the (statement/ [or]
    testimony) of one accomplice cannot be provided by
    the (statement/ [or] testimony) of another accomplice.]
    Any (statement/ [or] testimony) of an accomplice that
    tends to incriminate the defendant should be viewed
    with caution. You may not, however, arbitrarily
    disregard it. You should give that (statement/ [or]
    testimony) the weight you think it deserves after
    examining it with care and caution and in the light of
    all the other evidence.
    Accomplice Testimony: No Dispute Whether Witness is Accomplice,
    Cal. Crim. Jury Inst. 335.
    6
    It is unclear, however, from the opinion of the California Court of
    Appeal if Petitioner presented the question in the context of ineffective
    assistance of counsel. The appellate court’s analysis addressed whether
    the trial court should have instructed the jury sua sponte. It is only in a
    22                      LOPEZ V. ALLEN
    California Court of Appeal found that any error in not
    providing an instruction to the jury was ultimately harmless
    because there was ample corroborating evidence connecting
    Petitioner to the crime. Petitioner now argues that the
    California Court of Appeal was wrong because no evidence
    other than Stone’s testimony supported Stone’s claim that
    Petitioner had a gun at the scene of the shooting and was seen
    returning through the gap in the fence after the shooting.
    “The corroborative evidence required by section 1111
    ‘need not corroborate every fact to which the accomplice
    testified or establish the corpus delicti, but is sufficient if it
    tends to connect the defendant with the crime in such a way
    as to satisfy the jury that the accomplice is telling the truth.’”
    Laboa v. Calderon, 
    224 F.3d 972
    , 979 (9th Cir. 2000)
    (quoting People v. Fauber, 
    831 P.2d 249
    , 273 (Cal. 1992)).
    It “may be slight, entirely circumstantial, and entitled to little
    consideration when standing alone.” People v. Valdez,
    
    281 P.3d 924
    , 974 (Cal. 2012). The jury was presented with
    evidence that Petitioner spent the day preceding the shooting
    with Braden, accompanied Braden to retrieve the shotgun,
    was present when Braden modified the shotgun, had a heated
    exchange with Ross Sparks in which Petitioner threatened
    Ross Sparks’ family, had access to a shotgun, and
    accompanied Braden to the scene of the shooting. A
    reasonable jurist could conclude that any error by counsel in
    failing to request jury instructions concerning accomplice
    testimony was harmless and did not create sufficient
    prejudice to meet the Strickland standard.
    footnote that the Court of Appeal addressed whether trial counsel’s
    performance was deficient.
    LOPEZ V. ALLEN                        23
    F. Aggregate of Trial Counsel’s Deficiencies
    Petitioner asserts that the cumulative impact of trial
    counsel’s individual deficiencies was sufficiently prejudicial
    to warrant habeas relief. We have previously recognized that
    “the combined effect of multiple trial court errors violates
    due process where it renders the resulting criminal trial
    fundamentally unfair,” Parle v. Runnels, 
    505 F.3d 922
    , 927
    (9th Cir. 2007) (citation omitted), and that the elements of
    Strickland can be satisfied through an accumulation of
    multiple instances of deficient performance, see Fairbank v.
    Ayers, 
    650 F.3d 1243
    , 1257 (9th Cir. 2011).
    As discussed above, the state courts had reasonable bases
    for concluding that no error supported Petitioner’s individual
    claims of ineffective assistance of counsel. The only
    instance in which an error did occur—the failure to provide
    a proper jury instruction—was reasonably deemed to be
    harmless. Because Petitioner has failed to establish multiple
    errors of constitutional magnitude, there can be no
    accumulation of prejudice amounting to a denial of due
    process or meeting the Strickland standard. United States v.
    Solorio, 
    669 F.3d 943
    , 956 (9th Cir. 2012) (“There can be no
    cumulative error when a defendant fails to identify more
    than one error.” (citation omitted)); Hayes v. Ayers, 
    632 F.3d 500
    , 524 (9th Cir. 2011) (“Because we conclude that no error
    of constitutional magnitude occurred, no cumulative
    prejudice is possible.” (citation omitted)).
    CONCLUSION
    It is without question that trial counsel did not provide
    ideal representation, but flawless representation is not
    demanded by the Sixth Amendment. Harrington, 
    562 U.S. at 110
    . It is possible that the state courts might have reached
    different conclusions based on the evidence presented, but
    24                     LOPEZ V. ALLEN
    our review is limited to the question of whether any
    reasonable argument exists to justify the state court’s
    conclusion that trial counsel’s performance did not violate
    Strickland. Because such arguments do exist for the claims
    raised by Petitioner, we affirm the denial of Petitioner’s
    habeas petition.
    AFFIRMED.
    GRABER, Circuit Judge, dissenting:
    I respectfully dissent. In my view, Petitioner’s trial
    counsel provided ineffective assistance by failing to consult
    with and failing to introduce evidence from an expert in
    firearms acoustics. Petitioner was prejudiced by counsel’s
    failure. Accordingly, the state court’s denial of Petitioner’s
    claim was an unreasonable application of Strickland v.
    Washington, 
    466 U.S. 668
     (1984).
    Eyewitnesses’ testimony placed two shooters at the
    fence. It is undisputed that Braden was one of the shooters.
    Who was the second shooter? Petitioner and Stone were
    both arrested in connection with the shooting.
    The evidence at trial suggesting that Petitioner was the
    second shooter was largely circumstantial. For example, on
    June 18, Petitioner had participated in Braden’s angry phone
    exchange with Sparks and had sent threatening text
    messages to Sparks. Petitioner was present both when
    Braden retrieved a shotgun and when Braden sawed the
    stock off it. Finally, Petitioner was at the scene of the
    shooting with Braden and Stone. But only one individual,
    Stone, put Petitioner at the scene with a firearm.
    Specifically, Stone testified that Petitioner had a shotgun that
    LOPEZ V. ALLEN                       25
    was similar to the one that Braden used, although he testified
    that he never saw Petitioner fire the shotgun.
    But there also was strong circumstantial evidence that
    Stone was the second shooter. Before he picked up Braden
    and Petitioner, Stone spent several hours with his girlfriend.
    She testified that before picking them up, Stone had used
    methamphetamines and had consumed four caffeinated
    alcoholic beverages. Before going to the scene of the
    shooting, Stone retrieved his .22-caliber rifle. After the
    shooting, Stone fled and was on the run for two weeks with
    his girlfriend before he was arrested. Although police
    interviewed Stone three times before trial, he did not
    mention that Petitioner allegedly had a shotgun with him
    until the third interview, after which Stone entered into a
    plea agreement reducing his potential sentence from life in
    prison to roughly ten years of incarceration, in exchange for
    his agreement to testify against Braden and Petitioner.
    The fact that Stone had a .22-caliber rifle at the scene,
    while Petitioner allegedly had a shotgun like Braden’s, is
    crucial. One witness testified that the weapons used had two
    distinct sounds. The weapon in the gap of the fence
    produced a loud “boom,” while the weapon fired from the
    top of the fence sounded like “a pap, pap . . . like a
    firecracker . . . .”   Another witness provided similar
    descriptions. Sparks also testified that the firearms sounded
    different, one with a “big boom sound” and the other with a
    “lower sounding shot.” Sparks’ brother provided similar
    testimony.
    Although the majority opinion merely assumes that trial
    counsel’s performance was unreasonable, Maj. Op. at 13, the
    record makes clear that his performance was in fact
    deficient. Stone—the only witness who put Petitioner at the
    scene of the shooting with a firearm—testified that Petitioner
    26                    LOPEZ V. ALLEN
    had a shotgun that was similar to Braden’s. But Stone took
    to the scene of the shooting a firearm that differed from both
    Braden’s shotgun and Petitioner’s alleged shotgun: a .22-
    caliber rifle. Given how little solid evidence was available
    to differentiate between the theory that Stone was the second
    shooter and the theory that Petitioner was the second shooter,
    no fairminded jurist could reasonably conclude that
    counsel’s failure to pursue the significance of the different
    sounds of the gunfire was within the range of competent
    performance.
    The majority opinion contends that calling an expert on
    firearms acoustics would have undermined defense
    counsel’s choice to attack the eyewitnesses’ credibility. But
    trial counsel did rely on those witnesses’ testimony to argue
    (albeit briefly) that the second shooter used a rifle like
    Stone’s. An expert in firearms acoustics would have
    provided an objective explanation for Stone’s being the
    second shooter, an explanation that was supported by the
    testimony of four witnesses. By contrast, Stone’s testimony
    that Petitioner had a shotgun was uncorroborated, as well as
    intensely self-serving. Counsel chose to rely only on
    supposition to argue that the second shooter had a rifle. That
    choice was objectively unreasonable.
    Strickland’s prejudice prong also is satisfied. The
    evidence corroborating Stone’s account was circumstantial
    only, and the remaining evidence against Petitioner was
    weak. Thus, Stone’s credibility was indispensable to the
    prosecution’s case against Petitioner. The California Court
    of Appeal recognized that expert testimony might have
    tipped the scales:
    [A]lthough the weight of the evidence
    suggests the firearms sounded different, the
    jury was offered an explanation that was
    LOPEZ V. ALLEN                             27
    consistent with both weapons being
    shotguns. No other evidence, such as expert
    testimony, contradicted that explanation.
    People v. Lopez, No. A136253, 
    2016 WL 634651
    , at *28
    (Cal. Ct. App. Feb. 17, 2016) (unpublished) (emphasis
    added). One justice on the California Court of Appeal would
    have granted the petition on this issue. And, indeed, the
    expert presented in this proceeding would have opined that
    the witnesses’ descriptions of the different sounds made by
    the two weapons fired are consistent with the firing of a .22-
    caliber rifle and a semi-automatic shotgun and are
    inconsistent with the firing of two shotguns. The majority
    opinion makes much of the fact that Petitioner’s proffered
    testimony of Petitioner’s expert of firearms acoustics
    conflicts with the opinions of some eyewitnesses about the
    nature of the firearms used in the shooting. Maj. Op. at 13–
    14. But the conflict between the expert opinion and lay
    opinions is precisely why the expert’s testimony was
    indispensable to Petitioner’s defense. Such expert testimony
    would have created a reasonable doubt about Petitioner’s
    guilt.
    On this record, no fairminded jurist could reasonably
    conclude that there was no prejudice. See Hardy v.
    Chappell, 
    849 F.3d 803
    , 826–27 (9th Cir. 2016) (concluding
    that the California Supreme Court had applied Strickland
    unreasonably in denying habeas relief when counsel had
    failed to present evidence that the State’s key witness was
    the second killer). Accordingly, the California courts’
    conclusion to the contrary unreasonably applied Strickland. 1
    1
    Because the California courts unreasonably applied Strickland
    with respect to Petitioner’s claim regarding firearms acoustics, I would
    28                       LOPEZ V. ALLEN
    I would, therefore, reverse and remand.
    reverse on that issue alone and would not reach Petitioner’s remaining
    claims.