People v. Zumini CA4/1 ( 2022 )


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  • Filed 3/11/22 P. v. Zumini CA4/1
    NOT TO BE PUBLISHED IN OFFICIAL REPORTS
    California Rules of Court, rule 8.1115(a), prohibits courts and parties from citing or relying on opinions not certified for
    publication or ordered published, except as specified by rule 8.1115(b). This opinion has not been certified for publication
    or ordered published for purposes of rule 8.1115.
    COURT OF APPEAL, FOURTH APPELLATE DISTRICT
    DIVISION ONE
    STATE OF CALIFORNIA
    THE PEOPLE,                                                          D079447
    Plaintiff and Respondent,
    v.                                                         (Super. Ct. No. C1365185)
    ANDREW ZUMINI,
    Defendant and Appellant.
    APPEAL from a judgment of the Superior Court of Santa Clara County,
    Vanessa A. Zecher, Judge. Reversed and remanded.
    Solomon Wollack, under appointment by the Court of Appeal, for
    Defendant and Appellant.
    Xavier Becerra, Attorney General, Lance E. Winters, Chief Assistant
    Attorney General, Jeffrey M. Laurence, Assistant Attorney General, Donna
    M. Provenzano, and Victoria Ratnikova, Deputy Attorneys General, for
    Plaintiff and Respondent.
    Defendant Andrew Zumini, on trial for the first degree murder of his
    father, sought to introduce evidence of his father’s history of threats and
    violence toward Zumini and others. The trial court excluded this evidence on
    the ground that it was irrelevant to Zumini’s claims that he acted in self-
    defense or the heat of passion when he killed his father. After deliberating
    for several days, the jury convicted Zumini of first degree murder and also
    found true the allegation that he personally and intentionally discharged a
    firearm causing death.
    Zumini contends on appeal that the trial court abused its discretion by
    excluding evidence of his father’s prior threats, and that this error was
    prejudicial. We agree and therefore reverse the judgment on that ground.
    FACTUAL AND PROCEDURAL BACKGROUND
    Zumini shot his father, Anthony Zumini (Tony), on the night of
    September 6, 2013. When police arrived at the scene, Tony was pronounced
    dead. Next to Tony’s body, police found a folding knife with the blade still
    inside the handle. The knife was identified as the pocketknife Tony carried
    on his waistband. Police searched Tony’s residence and found no other
    weapons or any illegal contraband.
    Police arrested Zumini a few hours later. Zumini led officers to the
    storm drains where he had discarded the gun and the magazines he used
    during the shooting. A firearms expert matched the bullets and casings
    recovered from the scene and Tony’s body to the gun recovered from the
    storm drain.
    A forensic pathologist performed an autopsy of Tony’s body, concluding
    the cause of death was multiple gunshot wounds. Tony had been shot a total
    of nine times. Six of the nine shots in Tony’s body were fatal by themselves,
    and there was one potentially fatal shot to the lumbar spine which would
    have rendered Tony unable to walk. Eight of the nine gunshot wounds were
    inflicted from the back. The wounds were inflicted at a distance exceeding
    two to three feet.
    2
    On February 5, 2015, the prosecution charged Zumini with Tony’s
    murder (Pen. Code, § 187, subd. (a)), and with an enhancement for personal
    discharge of a firearm resulting in death (Id., § 12022.53, subd. (d)). A jury
    was empaneled on July 17, 2018.
    A.    Zumini’s Testimony
    Zumini testified at trial that he lived with Tony for the first five years
    of his life. He claimed he feared Tony when he was a child, but the fear
    “lessened or went away” after Tony and Zumini’s mother split up. When
    Zumini was older, he and Tony had an “on and off” relationship. They mainly
    communicated through Zumini’s older brother and lived together for one and
    a half months when Zumini was 21 years old. They often had disagreements
    when Tony would ask Zumini to do things he did not want to do, or because
    Zumini did not want to break the law.
    Zumini’s relationship with Tony improved once Tony found out
    Zumini’s girlfriend at the time, Gabby Assaad (Assaad), was pregnant. After
    the baby was born, Assaad and the baby moved in with Tony. Zumini was
    “comfortable” with this arrangement and would visit every day.
    By July 2013, Zumini and Tony’s relationship had become strained.
    Zumini heard that Tony was “going to start rounding up people and come up
    by [Zumini’s] house.” Zumini also learned that Tony and Zumini’s half-
    brother, Raymond Lizotte (Lizotte),1 were “making threats and bringing
    people by [Zumini’s] house.” Zumini feared that Tony was going to hurt him,
    Assaad, or his daughter, and he retaliated by making “all kinds of threats”
    against Tony.
    Around that time, Zumini started keeping knives, pepper spray, and
    bear spray in his car. In mid-August, he purchased a semi-automatic
    1     Zumini and Lizotte have different mothers.
    3
    handgun, which he also kept in his car. He paid hundreds of dollars more for
    the unregistered gun rather than pay the retail price from a licensed gun
    seller because he wanted the gun immediately. The gun came with two
    magazines filled with hollow-point bullets, which inflict more physical
    damage when fired.
    On September 6, 2013, Zumini decided to drive to his father’s residence
    and confront him. A neighbor told Zumini that her video surveillance footage
    showed Tony’s car parked outside Zumini’s house earlier that morning
    around 1:00 a.m. This information “elevated” Zumini’s fears about Tony.
    Around 6:30 p.m. that evening, Zumini called Tony, Tony’s girlfriend,
    and Lizotte to announce that he was coming over. When he called Lizotte,
    Zumini said something to the effect of, “Where was [their] punk ass father
    at?” and “[F]uck you, and fuck him.” Zumini later testified, however, that the
    decision to drive over to his father’s residence was “last minute” and “[s]pur
    of the moment.”
    When Zumini arrived at Tony’s residence around 9:30 p.m., he saw
    Tony and Lizotte outside and looking in his direction. He also saw Lizotte
    throw his arms up in what Zumini interpreted as “a challenging gesture[.]”
    Neither Tony nor Lizotte said anything. Rather than drive off, Zumini
    decided to confront them, rolling up his window and locking his door, because
    he feared Tony or Lizotte might attack first.
    As Zumini drove past them, Lizotte hit Zumini’s back window. Zumini
    also saw Lizotte pull a bandana over his face and begin wrapping his hand or
    putting on a glove. Zumini believed this meant Lizotte was preparing to
    fight. Still, Zumini’s attention remained focused on Tony. Zumini explained
    he only feared Lizotte when their father was around, because Lizotte “is
    4
    always less of a threat.” Zumini’s concern grew when he noticed a third
    person, whom he did not recognize, standing behind Tony. 2
    Zumini admitted that he had another opportunity to drive off, but he
    decided instead to stop the car. He explained that the situation had
    progressed into “the type of stuff [Zumini] was getting tired of [Tony and
    Lizotte] doing, and [he] wanted them to stop that type of stuff.” Zumini
    believed that if he drove away, “they [would] keep coming to [his] house.”
    Before getting out of the car, Zumini grabbed his gun. When asked
    why he pulled the gun out of the car, Zumini stated, “Because I wanted them
    to see me with a gun and take the threat serious . . . That I was capable of
    showing up at their place with a gun.” He explained that he had planned on
    displaying the gun all along and hoped this would intimidate Tony to “back
    off[.]” He also intentionally left the gun loaded and had the second magazine
    with him in case the situation “[got] out of hand.” He claimed, however, that
    he never intended that night to kill Tony or even point the gun at him.
    Once out of the car with the gun, Zumini yelled something along the
    lines of, “What’s up motherfucker? You wanna run up on me, you little
    bitch.” According to Zumini, Tony was standing about seven to nine feet from
    him and began moving in his direction without saying anything.3 Zumini
    testified that seeing Tony silently move towards him made him fear that he
    would be seriously injured or killed. He interpreted this behavior to mean
    2    The third person, whom Zumini did not recognize at the time, was
    Tony’s neighbor.
    3     Lizotte, who also testified at trial, first estimated that Zumini stopped
    about ten to 12 feet away from where he, Tony, and the neighbor were
    standing, but then later testified on cross that Zumini stopped around 50 feet
    from them. Lizotte further testified that he, Tony, and the neighbor were all
    standing still and never approached Zumini before Zumini started shooting.
    5
    Tony’s “mind [was] already made up. There’s not going to be any talking.”
    Zumini believed Tony was armed with the switchblade he always carried and
    feared he could possibly be armed with another weapon, such as a gun.
    However, Tony had not displayed his switchblade or brandished any
    weapons.
    Zumini fired one shot in Tony’s direction, and Tony “took off” on foot.
    Zumini acknowledged once again that he could have driven off but testified
    that his mind “zoomed in” on Tony, and he decided to chase after him.
    Zumini claimed that he believed Tony was retreating to grab a weapon or
    “gear up for something,” and Zumini “was just worried about stopping him.”
    Yet when asked by defense counsel if he was on “automatic pilot” after firing
    the first shot, Zumini responded, “Yeah. I didn’t think after that.”
    Zumini kept shooting while he chased after Tony at “full speed.” He
    continued firing even after Tony fell to the ground, only stopping once he had
    emptied the gun. In total, Zumini shot his father nine times.
    After the shooting, Zumini drove off and began getting rid of the
    evidence. He threw the gun and the magazines into two separate storm
    drains. He then drove to another location to discard his clothes and change
    into a set of spare clothes he kept in his car. While driving around, Zumini
    called his sister, who told him his father had been shot and killed and that he
    was a suspect. He later sent a text message to Assaad, stating, “Chilling.
    And you?” He also called an ex-girlfriend. He eventually decided to drive
    home and wait for the police, and he was arrested soon after.
    B.    The Trial Court’s Exclusion of Tony’s Prior Threats
    At trial, the defense sought to introduce evidence to the jury regarding
    Tony’s prior threats, filing a “motion in limine to admit evidence of factors
    affecting [Zumini] as a victim of long-term abuse.” The defense intended to
    6
    call witnesses to testify regarding a “years-long campaign of abuse, violence,
    and relentless menacing by the decedent” against Zumini and others.
    Specifically, when Zumini was five years old, he allegedly observed Tony
    physically and emotionally abuse his mother. Then, leading up to the
    shooting, Tony allegedly harassed and threatened to kill Zumini. This
    included occasions when Tony brandished a knife at Zumini, initiated high
    speed car chases, and attempted to stab Zumini’s tires. Tony also drove by
    Zumini’s house “many” times at odd hours, and often with others in his car,
    to frighten Zumini, and he also left Zumini threatening phone calls, texts,
    emails, and voicemails. Tony also told other individuals that he was
    planning to harm Zumini, and Zumini was made aware of these threats.
    Based on Tony’s threatening behavior in the summer of 2013, Zumini
    attempted to obtain a restraining order against Tony, which was denied
    several weeks before the shooting.
    In addition to family members and other individuals familiar with
    Tony’s violent past, the defense also intended to call “well-regarded domestic
    violence expert,” Richard Ferry, M.S., a licensed marriage and family
    therapist. The defense contended Ferry’s testimony was “germane” to
    Zumini’s mental state at the time of the charged crime and would describe
    “how [Zumini’s] actions over time reflected coping strategies of chronic
    violence victims, and how Tony’s ceaseless and escalating intimidation—up to
    and including death threats—pushed [Zumini] into a state of sustained fear
    and hypervigilance also common in victims of continuing violence;
    particularly for [Zumini’s] baby daughter, who was among those endangered
    by Tony’s senseless cruelty.”
    Attached to the motion was Ferry’s report, which discussed the
    significance of Tony’s abusive conduct towards Zumini, as well as strategies
    7
    Zumini developed to respond to the abuse. Although Ferry did not offer a
    formal diagnosis in his report, he indicated that Tony’s behavior caused
    Zumini to develop “sustained fear,” “hypervigilance,” a “sense of isolation,”
    and “aloneness.” In Ferry’s opinion, “[Zumini] was trying to encourage his
    father to stop his campaign of abuse, de-escalate the situation and neutralize
    the power imbalance by a display of his capability to inflict an equal damage
    on [Tony].”
    The prosecution opposed the motion in limine and filed a “motion to
    exclude prior bad acts and other evidence.” The prosecution’s primary
    contention was that the proffered evidence related to Tony’s prior bad acts
    was irrelevant because Zumini did not act in the heat of passion or in self-
    defense when he shot his father. The prosecution also contended such
    evidence should be excluded to the extent Zumini was not personally aware of
    the prior acts when he killed his father; the proffered witness statements
    were far more prejudicial than probative; and there were various evidentiary
    problems with each proffered defense witness.
    The prosecution additionally contended that admission of evidence
    related to Tony’s prior violence would open the door for the prosecution to
    introduce evidence regarding Zumini’s own character for violence, including
    various threats Zumini made against Tony in the summer of 2013. In one
    incident identified by the prosecution, Zumini brandished a bat at Tony and
    admitted to throwing a bottle and breaking Tony’s kitchen window. In
    another incident, Zumini admitted to chasing and trying to fight Tony. The
    prosecution was also prepared to introduce evidence regarding Zumini’s prior
    acts of violence against Assaad, which included “hit[ting]” and “pok[ing]” her
    in the vagina, threatening to kill her, and locking her out of the house.
    8
    The prosecution further argued that evidence of Zumini’s mental health
    disorders and other psychological conditions was irrelevant, noting various
    problems with Ferry’s report. For instance, Zumini was not a victim of
    intimate partner battering, the subject of Ferry’s expertise. Additionally, the
    focus in the report on events from Zumini’s childhood created a substantial
    risk of confusing the jury.
    In a memorandum of points and authorities, defense counsel
    maintained that Ferry’s testimony was admissible. Counsel clarified that
    Ferry’s expertise related to “victims of chronic abuse,” and his expert opinion
    was relevant to corroborating Zumini’s testimony that he brought the gun to
    the confrontation with his father even though he never intended to use it.
    During a hearing on the motions in limine, the court ruled that Zumini
    would not “be able to automatically testify as to the history of the
    relationship with his father.” Defense counsel indicated at the hearing that
    the defense’s theory was not primarily self-defense or imperfect self-defense,
    but rather “prolonged provocation” by the decedent. The court responded
    that Zumini would need to lay a legally sufficient basis for provocation before
    the family history evidence could be admitted. Thus, if Zumini decided to
    testify, the defense would “need to start with the circumstances as to what
    happened that day and work backwards,” and the parties would then litigate
    which prior incidents would be admissible. The court further acknowledged
    that admission of Tony’s prior bad acts would trigger the prosecution’s ability
    to introduce Zumini’s prior bad acts in rebuttal.
    In subsequent filings, the defense contended the family history
    evidence was relevant to corroborate Zumini’s state of mind, and Zumini was
    therefore constitutionally entitled to testify “without fetters.” The defense
    indicated that Zumini was prepared to testify that “he did not go to his
    9
    father’s house with the intent to kill but to confront him[.]” Thus, his father’s
    “extreme campaign of ongoing criminality” was relevant to corroborating
    Zumini’s testimony that he brought the gun with him to confront his father
    but never intended to use it. According to the defense, it would be a violation
    of Zumini’s constitutional rights for the trial court to restrict Zumini from
    testifying about his father’s prior threats, claiming, “The defendant has a
    constitutional right to testify to his own mental state at the time of the acts
    constituting the alleged offense, and to the reasons he had that mental state.”
    Defense counsel continued to raise this argument at a hearing, claiming that
    the family history evidence showed that Zumini did not go to his father’s
    house with a “preformed intention of malice aforethought.” Instead, the
    family history evidence demonstrated that Zumini merely intended to
    “confront” his father, “[t]o tell him, leave me alone. Leave my baby alone.
    Leave my baby’s mother alone. I want you out of my life. Leave me alone.”
    The trial court held a hearing under Evidence Code section 4024 to
    assess the admissibility of Ferry’s proposed testimony. Ferry testified at the
    hearing that his “diagnostic impression” or “working diagnosis” of Zumini—
    meaning he did not run any diagnostic tests—was that Zumini had
    generalized anxiety disorder and complex post-traumatic stress disorder
    (PTSD).5 The characteristics associated with these diagnoses included
    nervousness, restlessness, and hypervigilance. The diagnoses were based on
    Tony’s conduct towards Zumini and his family when Zumini was between two
    and 11 years old, and Ferry believed the diagnoses were “probably in play” at
    4     All further undesignated statutory references are to the Evidence Code.
    5     Complex PTSD refers to PTSD caused by many, repetitive events
    rather than a single event. The symptoms of complex and regular PTSD are
    the same, regardless of the circumstances that led to the condition.
    10
    the time of the shooting. Ferry testified that Tony’s conduct during Zumini’s
    adulthood “could have been provocative” and “could have increased his
    hypervigilance, but the [PTSD] diagnosis was already there.” However,
    Ferry had never been qualified as an expert in generalized anxiety disorder
    or PTSD. He also had no experience serving as an expert witness in any
    domestic violence cases involving violence between a father and son. Rather,
    his expertise was mainly limited to intimate partner battering, specifically
    “the dynamics between a man and a woman who are in a romantic
    relationship when there’s abuse, and the effects of that abuse on the woman
    in the relationship.”
    Following additional arguments from the parties and after hearing
    Zumini’s testimony, the court ruled to exclude evidence related to Zumini’s
    family history, apart from evidence regarding threats made on the day of
    shooting. Although the court recognized that it was obligated to give a self-
    defense instruction “if even a scintilla of evidence is present with respect to a
    self-defense theory,” the court disagreed with defense counsel’s argument
    that Zumini’s general fear of his father could support his claim that he acted
    in self-defense on the day of the shooting. Additionally, even though Zumini
    had a general fear of his father, his testimony did not establish a fear of
    imminent death or great bodily injury. The court additionally found that
    Tony and Zumini’s prior history was not relevant “given the lack of
    provocation, [and] the bereft nature of the record with respect to [Tony’s]
    provocation on the date in question . . . .” To the extent the court agreed with
    defense counsel that the shooting was the result of a “battle of dominant
    alpha male and his beta son,” the court concluded that this was not a
    cognizable legal defense. The court clarified at a later hearing that it
    excluded evidence related to Tony’s prior bad acts, because the defense had
    11
    failed to present sufficient evidence to support a finding of provocation or a
    need for self-defense.
    The court also rejected the defense’s argument that the family history
    evidence was admissible to corroborate Zumini’s state of mind. Although the
    defense had contended that the family history evidence tended to show that
    Zumini did not arrive at his father’s house on the night of the shooting
    intending to shoot his father, the court noted that “there’s a big gap” between
    Zumini arriving at his father’s house and when he “eventually shot [his
    father].”
    As to Ferry’s testimony, the court ruled that Ferry was permitted to
    testify. However, the court limited Ferry’s testimony to Zumini’s diagnoses
    for generalized anxiety disorder and PTSD; “a general opinion as to what the
    lens looks like for someone who has PTSD”; and how a person with PTSD
    “view[s] certain situations.” The court emphasized that Ferry’s testimony
    was “not an opportunity for [the defense] to get the entire history of the
    relationship between . . . Zumini and his father before the jurors.”
    Defense counsel ultimately decided not to call Ferry as an expert
    witness, contending that Ferry’s opinion would be “vitiated” if he was
    prevented from explaining that the basis for his opinion was the abusive
    relationship between Zumini and his father. Additionally, the prosecution
    had retained an expert to challenge Ferry’s opinion, and defense counsel was
    concerned the trial would devolve into “a battle of the experts.”
    Defense counsel also decided not to call its character witnesses, who
    were intended to testify about Zumini’s “character for honesty and
    peacefulness.” These witnesses would have opened the door for the
    prosecution to ask about Zumini’s prior acts of violence, and without evidence
    12
    of Tony’s prior bad acts before the jury, counsel concluded it was not in
    Zumini’s best interest to have the character witnesses testify.
    C.    Jury Instructions, Verdict, and Sentence
    After the close of evidence, the prosecution argued that substantial
    evidence did not support jury instructions for heat of passion, perfect self-
    defense, or imperfect self-defense. The court agreed with the prosecution
    that an instruction for heat of passion was unwarranted, finding no
    substantial evidence to show that Tony’s demeanor on the night of the
    shooting provoked Zumini. The court, however, rejected the prosecution’s
    arguments on self-defense, electing to instruct the jury on both complete self-
    defense and voluntary manslaughter due to imperfect self-defense.
    The jury deliberated for several days and returned a verdict finding
    Zumini guilty of first degree murder and the firearm enhancement. The trial
    court sentenced Zumini to 50 years to life in prison, consisting of consecutive
    25-year-to-life terms on the murder count and the firearm enhancement.
    Zumini timely appealed.
    DISCUSSION
    Zumini contends that the trial court abused its discretion and violated
    his federal constitutional right to present a defense by excluding “extensive
    evidence about Tony’s prolonged campaign of violence against him and his
    loved ones—especially during the summer of 2013.” He argues that “[t]he
    court’s ruling destroyed [his] credibility as a witness, eviscerated his claims of
    self-defense and heat of passion, and prevented him from answering key
    questions like why he decided to confront Tony at gunpoint.” The Attorney
    General counters that evidence related to Zumini’s family history was
    properly excluded, and that any error in excluding this evidence was
    harmless given the strength of the other evidence presented at trial.
    13
    We conclude that the trial court abused its discretion by excluding
    evidence related to Tony’s prior threats. Once the court elected to instruct
    the jury on self-defense, the explicit terms of the self-defense instructions
    made Tony’s prior threatening behavior relevant, and thus such evidence
    should have been admitted. Further, evidence of the prior threats was
    relevant to Zumini’s state of mind because it was material to his claim that
    he did not commit the shooting with the mens rea required for first degree
    murder. Because evidence regarding Tony’s prior threats was critical to
    Zumini’s self-defense and heat of passion claims, we conclude that Zumini
    was prejudiced by the erroneous exclusion of this evidence.
    A.    General Legal Principals
    First degree murder is an unlawful killing with malice aforethought,
    premeditation, and deliberation. (People v. Chun (2009) 
    45 Cal.4th 1172
    ,
    1181 (Chun).) Malice can be negated if the defendant acted in self-defense.
    There are two types of self-defense under California law: “perfect” self-
    defense and “imperfect” self-defense. (People v. Randle (2005) 
    35 Cal.4th 987
    ,
    994, overruled on other grounds in Chun, at pp. 1198-1199.) Both types
    require that the defendant actually believe he was in “imminent danger of
    death or great bodily injury[.]” (Randle, at p. 994.) If that belief is
    reasonable “ ‘from the point of view of a reasonable person in the
    [defendant’s] position,’ ” the defendant has acted in perfect self-defense and
    the killing is not considered a crime. (People v. Humphrey (1996) 
    13 Cal.4th 1073
    , 1083 (Humphrey); Pen. Code, § 197, subd. (1).) If the belief is
    objectively unreasonable, the defendant is considered to have acted in
    imperfect self-defense and the crime is reduced to voluntary manslaughter.
    (People v. Elmore (2014) 
    59 Cal.4th 121
    , 134.) “[F]or either perfect or
    imperfect self-defense, the fear must be of imminent harm. ‘Fear of future
    14
    harm—no matter how great the fear and no matter how great the likelihood
    of the harm—will not suffice. The defendant’s fear must be of imminent
    danger to life or great bodily injury.’ ” (Humphrey, at p. 1082.)
    Second degree murder is an unlawful killing with malice, but without
    the elements of premeditation and deliberation. (Chun, 
    supra,
     45 Cal.4th at
    p. 1181.) Premeditation and deliberation may be negated by heat of passion
    arising from provocation. (People v. Fitzpatrick (1992) 
    2 Cal.App.4th 1285
    ,
    1295-1296 (Fitzpatrick).) “If the provocation would not cause an average
    person to experience deadly passion but it precludes the defendant from
    subjectively deliberating or premeditating, the crime is second degree
    murder. [Citation.] If the provocation would cause a reasonable person to
    react with deadly passion, the defendant is deemed to have acted without
    malice so as to further reduce the crime to voluntary manslaughter.
    [Citation.]” (People v. Hernandez (2010) 
    183 Cal.App.4th 1327
    , 1332
    (Hernandez).)
    A defendant’s evidence related to self-defense or heat of passion is
    subject to the ordinary evidentiary rules. (See § 351 [all relevant evidence is
    admissible unless prohibited by statute].) This includes the limitations set
    forth by sections 350 and 352, meaning the evidence must be relevant and
    that relevance must outweigh any prejudicial impact the evidence might have
    on the jury. (See In re Christian S. (1994) 
    7 Cal.4th 768
    , 783 (Christian S.).)
    Relevant evidence is defined as evidence “having any tendency in reason to
    prove or disprove any disputed fact that is of consequence to the
    determination of the action.” (§ 210.) “ ‘The test of relevance is whether the
    evidence tends “logically, naturally, and by reasonable inference” to establish
    material facts such as identity, intent, or motive.’ ” (People v. Bivert (2011)
    
    52 Cal.4th 96
    , 116-117.) At the same time, the trial court retains the
    15
    discretion under section 352 to exclude relevant evidence if “its probative
    value is substantially outweighed by the probability that its admission will”
    either “necessitate undue consumption of time” or “create substantial danger
    of undue prejudice, of confusing the issues, or of misleading the jury.”
    (§ 352.)
    Additionally, a defendant may not offer evidence of the victim’s
    character or trait to prove conduct on a specified occasion. (§ 1101, subd. (a).)
    “ ‘The reason for this rule is not that such evidence is never relevant; to the
    contrary, the evidence is excluded because it has too much probative value.’
    [Citations.] ‘ “The natural and inevitable tendency” ’ is to give excessive
    weight to the prior conduct and either allow it to bear too strongly on the
    present charge, or to take the proof of it as justifying a conviction irrespective
    of guilt of the present charge. [Citations.]” (People v. Hendrix (2013) 
    214 Cal.App.4th 216
    , 238.) This general rule set forth by section 1101 is subject
    to an exception where “evidence of the character or a trait of character (in the
    form of an opinion, evidence of reputation, or evidence of specific instances of
    conduct) of the victim of the crime for which the defendant is being
    prosecuted” is “[o]ffered by the defendant to prove conduct of the victim in
    conformity with the character or trait of character.” (§ 1103, subd. (a)(1).)
    We review for abuse of discretion the trial court’s ruling on the
    admissibility of evidence. (People v. Harris (2005) 
    37 Cal.4th 310
    , 337.)
    “Abuse may be found if the trial court exercised its discretion in an arbitrary,
    capricious, or patently absurd manner, but reversal of the ensuing judgment
    is appropriate only if the error has resulted in a manifest miscarriage of
    justice. [Citations.]” (People v. Coddington (2000) 
    23 Cal.4th 529
    , 587-588,
    overruled on other grounds in Price v. Superior Court (2001) 
    25 Cal.4th 1046
    ,
    1069, fn. 13.)
    16
    B.    Admissibility of Evidence of Prior Threats
    Before ruling on Zumini’s motion in limine, the trial court indicated
    that it would first need to hear testimony from Zumini about events on the
    day of the shooting. According to the court, Zumini was not “automatically”
    entitled to testify about his relationship with his father, and would “need to
    start [his testimony] with the circumstances as to what happened that day
    and work backwards.” The court indicated that if Zumini laid “a legally
    sufficient foundation” for his self-defense or heat of passion claims through
    his testimony, then Tony’s prior bad acts could potentially be admissible
    under section 1103.
    Following this ruling, Zumini testified over the course of several days
    about his thought process on the day of the shooting. He stated that he
    decided to drive to his father’s residence on September 6, 2013, after hearing
    from a neighbor that his father had parked by his house earlier that morning.
    He purposefully brought with him to the confrontation a gun loaded with
    hollow-point bullets along with a second magazine, intending to display the
    gun and intimidate Tony to “back off.” When Zumini arrived, Tony was
    outside with Zumini’s half-brother and a third individual. Zumini’s half-
    brother hit Zumini’s back window, and rather than drive off, Zumini decided
    to stop the car. Zumini exited the car with the gun, and yelled “What’s up
    motherfucker? You wanna run up on me, you little bitch.” According to
    Zumini, Tony then moved in his direction, without saying anything and
    without brandishing any weapons. Yet Zumini believed Tony was possibly
    armed with a knife or gun, and he feared he would be seriously injured or
    killed. Zumini responded by firing one shot in Tony’s direction, and the three
    men scattered and ran off. Although Zumini admitted he had another
    opportunity to drive away, he chased after Tony instead, shooting at Tony to
    17
    stop him from arming himself or “gear[ing] up for something.” Zumini
    continued to fire even after Tony fell to the ground, only stopping once he had
    emptied the gun.
    After hearing this testimony, the trial court ruled to exclude evidence
    related to Zumini’s family history. The court’s ruling was based in part on a
    finding that Zumini’s own testimony had precluded him from asserting a self-
    defense claim. The court indicated that it was obligated to admit evidence
    relevant to self-defense if there was even a “scintilla of evidence” presented to
    support a self-defense theory, but that Zumini had failed to establish a self-
    defense claim since his own testimony established that he did not fear
    imminent death or great bodily injury when he committed the shooting.
    Thus, aside from evidence regarding threats made on the day of shooting, the
    court concluded that Zumini’s proffered family history evidence should be
    excluded as irrelevant.
    Zumini correctly notes that this evidentiary ruling was inconsistent
    with the court’s subsequent ruling to instruct the jury on self-defense. On the
    issue of the jury instructions, the prosecution argued that Zumini’s own
    testimony rendered him ineligible for a self-defense instruction. The court,
    however, rejected this argument and ruled that the jury would receive a self-
    defense instruction. To support its ruling, the court explained, “I think this is
    dangerous. If the Court is wrong on this, the case is reversed. Period. So it
    may be the more prudent course—and I am saying this—I’m just going to ask
    you to think about this. To give a self-defense instruction—it may well be
    imperfect self-defense factually. I[t] may not—that’s certainly for the jurors
    to decide. [¶] But I’m thinking that it may be appropriate to have the jurors
    decide whether this is a self-defense issue or an imperfect self-defense issue,
    or neither.”
    18
    However, by instructing the jury on self-defense, the court impliedly
    found that there was substantial evidence in the record to support Zumini’s
    self-defense claims. “The trial judge [has] a responsibility to correctly
    instruct the jury and limit argument to defenses supported by substantial
    evidence.” (People v. Ponce (1996) 
    44 Cal.App.4th 1380
    , 1386.) “It defeats the
    policy judgments of the courts and the Legislature to allow a defendant to
    receive an instruction on a defense, and to allow a jury to excuse criminal
    conduct, when the defendant purports to rely on a defense for which
    substantial evidence does not exist. Dangerous persons could go free.
    Moreover, such an instruction will often confuse a jury because the jury will
    probably wonder why it has received an instruction on a defense for which
    there is no substantial evidence.” (People v. Shelmire (2005) 
    130 Cal.App.4th 1044
    , 1059.) Thus, the court’s election to instruct the jury on self-defense
    required it to find substantial evidence that Zumini acted in self-defense
    when he shot his father, such that the jury would be entitled to find Zumini
    not guilty of first degree murder. Such ruling is plainly inconsistent with the
    court’s earlier evidentiary ruling, in which the court found there was not a
    scintilla of evidence to show Zumini had acted in self-defense.
    We recognize that threats by the victim do not alone establish self-
    defense, as there must be evidence the defendant feared imminent, and not
    just future, harm. (People v. Minifie 
    13 Cal.4th 1055
    , 1068 (Minifie); see also
    Christian S., supra, 7 Cal.4th at p. 783 [perfect and imperfect self-defense
    require “an actual fear of an imminent harm.”].) Any right of self-defense is
    also limited to the use of such force as is reasonable under the circumstances
    and does not extend beyond the time of real or apparent danger. (Minifie, at
    p. 1064; People v. Pinholster (1992) 
    1 Cal.4th 865
    , 966, disapproved of on
    other grounds by People v. Williams (2010) 
    49 Cal.4th 405
    .) Moreover, a
    19
    defendant cannot invoke perfect or imperfect self-defense where “through his
    own wrongful conduct (e.g., the initiation of a physical attack or the
    commission of a felony), [he] has created circumstances under which his
    adversary’s attack or pursuit is legally justified.” (People v. Enraca (2012)
    
    53 Cal.4th 735
    , 761.)
    Notwithstanding these legal principles regarding self-defense, once the
    court elected to give the self-defense instructions, it undermined the very
    rationale it had used to exclude Zumini’s evidence and, more importantly,
    deprived the jury of the ability to consider evidence that was material to
    those instructions. Here, the jury instructions the court provided expressly
    required the jury to consider Tony’s prior threatening conduct. The court
    instructed the jury on perfect self-defense with CALCRIM No. 505, which
    stated: “When deciding whether the defendant’s beliefs were reasonable,
    consider all the circumstances as they were known to and appeared to the
    defendant and consider what a reasonable person in a similar situation with
    similar knowledge would have believed. [¶] . . . [¶] If you find that Tony
    Zumini threatened or harmed the defendant in the past, you may consider
    that information in deciding whether the defendant’s conduct and beliefs
    were reasonable. [¶] Someone who has been threatened or harmed by a
    person in the past is justified in acting more quickly or taking greater self-
    defense measures against that person.” The court also instructed the jury on
    imperfect self-defense under CALCRIM No. 571, which similarly provides:
    “In evaluating the defendant’s beliefs, consider all the circumstances as they
    were known and appeared to the defendant. [¶] . . . [¶] If you find that Tony
    Zumini threatened or harmed the defendant in the past, you may consider
    that information in evaluating the defendant’s beliefs. [¶] If you find that the
    defendant knew that Tony Zumini had threatened or harmed others in the
    20
    past, you may consider that information in evaluating the defendant’s
    beliefs.”
    These jury instructions, by their own terms, entitled the jury to
    consider evidence of prior threats Tony made to Zumini and others. It was
    therefore an abuse of discretion for the court to instruct the jury to consider
    Tony’s prior threats, while at the same time excluding evidence of the prior
    threats as irrelevant. (See People v. Rist (1976) 
    16 Cal.3d 211
    , 219
    [“[J]udicial discretion is by no means a power without rational bounds.
    ‘ “. . . The term [judicial discretion] implies absence of arbitrary
    determination, capricious disposition or whimsical thinking. It imports the
    exercise of discriminating judgment within the bounds of reason.” ’ ”],
    superseded by statute on other grounds as stated in People v. Collins (1986)
    
    42 Cal.3d 378
    , 393.)
    In addition to highlighting the court’s inconsistent rulings regarding
    Zumini’s self-defense claims, Zumini further asserts that evidence of Tony’s
    prior threats was relevant to establishing his state of mind. He argues that
    the exclusion of his own testimony was erroneous because it was relevant to
    negate the elements of malice, premeditation, and deliberation, thus showing
    he did not act with the mens rea required for first degree murder. He asserts
    that knowledge of a victim’s past violence “either through personal
    experience or word of mouth . . . may be relevant to show that [the defendant]
    lacked the state of mind necessary to commit the charged crime.”
    “ ‘A person claiming self-defense is required to “prove his
    own frame of mind,” and in so doing is “entitled to corroborate his testimony
    that he was in fear for his life by proving the reasonableness of such fear.”
    [Citation.]’ ” (Minifie, 
    supra,
     13 Cal.4th at p. 1065.) The reasonableness of
    the defendant’s fear is determined from the point of view of a reasonable
    21
    person in the defendant’s position. (Humphrey, 
    supra,
     13 Cal.4th at p. 1083;
    Minifie, at p. 1068.) Further, a defendant claiming self-defense is entitled to
    have the jury consider all the facts and circumstances that might be expected
    to operate on his state of mind. (Humphrey, at p. 1083.)
    Similarly, a heat of passion defense for voluntary manslaughter has
    two components, one subjective and the other objective. (People v.
    Steele (2002) 
    27 Cal.4th 1230
    , 1252.) The subjective component is the
    defendant’s state of mind, showing that he in fact acted in a heat of passion.
    (Ibid.) When a person attempts to kill while acting in the heat of passion,
    even if exercising a sufficient “measure of thought . . . to form . . . an intent to
    kill,” he or she acts with “a mental state that precludes the formation of
    malice.” (People v. Beltran (2013) 
    56 Cal.4th 935
    , 942.) The test of whether
    provocation or heat of passion can negate premeditation and deliberation so
    as to reduce first degree murder to second degree murder also requires a
    subjective determination of the defendant’s state of mind. (People v. Padilla
    (2002) 
    103 Cal.App.4th 675
    , 678 (Padilla); Fitzpatrick, supra, 2 Cal.App.4th
    at p. 1295.)
    In this case, Zumini was entitled to present evidence bearing upon his
    state of mind and the reasonableness of his interpretation of Tony’s actions to
    support his self-defense and heat of passion claims. Because a defendant’s
    “ ‘perceptions are at issue,’ ” prior known threats by the victim “ ‘may color
    [the defendant’s] perceptions of that individual.’ ” (Minifie, supra, 13 Cal.4th
    at pp. 1065-1066.) Evidence of prior threats may also justify the defendant
    “in acting more quickly and taking harsher measures for [his] own protection
    in the event of assault, whether actual or threatened, than would a person
    who had not received such threats.” (People v. Bush (1978) 
    84 Cal.App.3d 294
    , 302-303.) Zumini testified that although he hoped to “intimidate” Tony
    22
    on the night of the shooting, he did not plan to shoot or even point the gun at
    him. Instead, he merely intended to “have the gun on [him] and let [Tony]
    know, here it is[.]” Zumini additionally testified that once he got out of his
    car and saw his father move in his direction, he feared imminent harm. He
    stated that he believed “the minimum would be a knife attack,” and that he
    could be seriously hurt or killed. He further indicated that this fear of Tony
    developed around July 1, 2013 and had been “ongoing” and “continuous” since
    that time. Zumini explained that it was because he feared for his life that he
    fired the first shot. Evidence of specific threats Tony made leading up to the
    shooting was therefore relevant to Zumini’s self-defense claims, by
    corroborating Zumini’s explanation for why he felt compelled to initiate the
    confrontation with Tony that night, and to support the reasonableness of his
    perception of an imminent threat. Such evidence was also relevant because it
    was material to whether Zumini acted without malice, premeditation, or
    deliberation. For these reasons, the trial court erred in excluding this
    evidence.
    Our conclusion that the evidence related to Tony’s prior threats should
    have been admitted is not intended to inhibit the trial court’s gate-keeping
    function under the rules of evidence. As the prosecution noted in its motion
    to exclude evidence of Tony’s prior bad acts, the defense had “provided the
    People a list of 51 defense witnesses, along with written summaries of
    statements taken from 34 of them . . . None of these witnesses saw or heard
    anything related to the September 6, 2013 shooting death of [Tony]. Rather,
    [Zumini] want[ed] to call all but a few of these witnesses purely to paint
    [Tony] in a negative light.” The court retained the discretion to exclude
    evidence of prior threats if such evidence was redundant, unduly time
    consuming, or if the prior threat was too remote in time to the occurrence of
    23
    the crime. (§ 352; People v. Shoemaker (1982) 
    135 Cal.App.3d 442
    , 448, fn. 4
    [“At some point in time . . . evidence of the victim’s character becomes too
    remote to have any probative value and thus becomes irrelevant.”]; see also
    People v. Gonzales (1967) 
    66 Cal.2d 482
    , 500 [victim’s reputation for violence
    seven years before the crime in question was too remote to have any
    probative value].) Additionally, evidence of Tony’s prior threats would be
    relevant only if Zumini was personally aware of the prior threatening
    behavior. (See People v. Tafoya (2007) 
    42 Cal.4th 147
    , 165-166 [evidence that
    a person was dangerous was relevant to the defendant’s claim of self-
    defense only if the defendant knew of the person’s reputation for
    dangerousness]; People v. Pena (1984) 
    151 Cal.App.3d 462
    , 475 [“an
    instruction on the effect of antecedent threats known by a defendant is
    required where evidence establishes . . . threats . . . made by the deceased
    against the defendant and the defendant’s belief and reliance thereon as
    influencing or justifying his actions”].) Notwithstanding these limitations on
    the scope of the admissibility of the evidence regarding the prior threats, the
    court was required, at a minimum, to permit Zumini to testify regarding
    prior threats Tony made that Zumini was personally aware of at the time he
    committed the shooting, and which occurred in the months preceding the
    shooting.6
    6      Although we conclude that the trial court erred by excluding evidence
    of Tony’s prior threats, we are unpersuaded by Zumini’s contention that these
    prior threats were admissible to lay a foundation for Ferry’s testimony.
    Zumini contends that Tony’s prior threats should have been admitted
    because such evidence was “key” to Ferry’s diagnoses of Zumini. However,
    Ferry testified during the 402 hearing that his “working diagnoses” of Zumini
    were solely based on Tony’s conduct during Zumini’s early childhood. Thus,
    the court was within its discretion to limit the defense from presenting the
    “entire history of the relationship between [Zumini] and his father,” when
    much of that evidence was irrelevant to the basis of Ferry’s diagnoses.
    24
    C.    Prejudice
    Zumini contends that the exclusion of evidence related to the prior
    threats deprived him of his constitutional right to present a complete defense,
    and requires reversal under Chapman v. California (1967) 
    386 U.S. 18
    , 23-24
    (Chapman), unless the error was harmless beyond a reasonable doubt. The
    Attorney General counters that the standard set forth by People v. Watson
    (1956) 
    46 Cal.2d 818
     (Watson) is the applicable standard for determining
    whether such error was harmless. Under Watson, the judgment must be
    upheld unless it is reasonably probable that the defendant would have
    obtained a more favorable result in the absence of the error. (Watson, at
    p. 837.)
    We conclude that under either standard, the trial court’s error in
    excluding evidence of the prior threats warrants reversal. At trial, Zumini
    was only permitted to testify regarding a limited range of threatening
    behavior by the decedent. He testified that he generally feared Tony when he
    was a child, and that they had “disagreements” once he became an adult.
    Zumini also testified that he decided to confront Tony after a neighbor
    informed him that Tony was outside Zumini’s house in the early morning on
    the day of the shooting. The jury also heard from Zumini that Tony was
    “making threats” in the summer of 2013, which made Zumini fearful for
    himself, the mother of his child, and his infant daughter.
    However, Zumini was curtailed in his ability to present evidence about
    the specific nature of Tony’s prior threats. As outlined by the defense in the
    motion in limine, there were numerous, specific incidents in the months
    leading up to the shooting in which Tony allegedly threatened Zumini
    directly. For example, Tony threatened to hurt and kill Zumini through
    phone calls, texts, emails, and voicemails. Tony also brandished a knife at
    25
    Zumini on three occasions, and drove by Zumini’s house “many” times at odd
    hours, often with others in his car, to frighten Zumini. On two occasions,
    Tony initiated a high-speed car chase of Zumini, and Tony also tried to stab
    Zumini’s car tire while Zumini was at a stoplight.
    In the summer of 2013, Zumini unsuccessfully attempted to obtain a
    restraining order against Tony due to Tony’s threatening behavior. Tony and
    Zumini’s half-brother had threatened “to beat the shit out of [Zumini]” in
    early July. Zumini chased them away with baseball bats, but Tony returned
    about three or four more times challenging Zumini to fight, prompting
    Zumini to file for a restraining order. On the night before the hearing for the
    restraining order, Tony showed up at Zumini’s house “with 2-3 carloads of
    people.” Then, after the restraining order was denied, Tony “chased” Zumini
    out of the building and through the parking garage. Tony also threatened to
    circulate “paperwork” from the proceedings to show Zumini was a “snitch.”
    In addition to threatening Zumini directly, Tony also told other
    individuals that he was intending to harm Zumini, and Zumini was made
    aware of these threats. For instance, Assaad told Zumini that Tony had
    shown her a handgun, telling her, “This is for [Zumini], to finish him off.”
    Tony also sent pictures of Zumini standing next to a police car, suggesting
    Zumini was cooperating with authorities. Zumini believed this put him in
    danger by “encouraging gang members to retaliate against him.” Then,
    around July 2013, a friend of Tony’s warned Zumini that Tony “was trying to
    have [Zumini] jumped.” Lastly, within 10 days of the shooting, Tony told
    another friend that he was planning to shoot at Zumini and Assaad’s
    respective homes, and these threats were conveyed to Zumini.
    The trial court’s decision to restrict Zumini from testifying about these
    prior threats prejudiced Zumini in presenting his claims to the jury. As
    26
    previously discussed, the court’s limitations on Zumini’s testimony regarding
    the prior threats prevented the jury from hearing evidence they were entitled
    to hear under the self-defense instructions they were given. Such evidence
    was crucial to explaining Zumini’s thought process in the weeks leading up to
    the shooting. Specifically, it reinforces why Zumini began keeping the
    illegally obtained semi-automatic handgun in his car, along with knives,
    pepper spray, and bear spray. The excluded evidence could also provide
    necessary context for Zumini’s decision to confront Tony at gunpoint, by
    explaining what he meant when he testified that his intention was to stop
    Tony from continuing “that type of stuff.” Additionally, without hearing
    evidence regarding any specific threats Tony made against Zumini leading up
    to the date of the shooting, Zumini’s testimony that he heard from a neighbor
    that his father parked by his house in the early morning could seem
    relatively insignificant. For these reasons, the excluded evidence about
    Tony’s prior threats might have provided sufficient context to explain why
    Zumini felt compelled to initiate an armed confrontation with his father on
    the night of the shooting.
    Further, the excluded evidence could have corroborated Zumini’s
    testimony that he began shooting because he feared imminent harm. Zumini
    testified that although his father did not brandish any weapons or say
    anything to him during their final encounter, Zumini nonetheless feared he
    could be killed or seriously injured when his father moved in his direction.
    He also stated that he began to fear that a serious attack from his father was
    imminent in early July 2013. The jury’s awareness of Tony’s behavior in the
    months leading up to the shooting was crucial for the jury to fully understand
    Zumini’s testimony on this point. It could have explained why Zumini feared
    Tony had a weapon, since Tony had brandished knives at Zumini on several
    27
    prior occasions. Tony had also shown Assaad a handgun, and it was Zumini’s
    belief that Tony intended to use the gun to “finish [Zumini] off.” Additionally,
    Tony’s initiation of high-speed car chases with Zumini and stabbing Zumini’s
    tires generally shows Tony’s propensity for violence.
    Overall, the trial court’s decision to exclude evidence related to Tony’s
    prior threats prevented Zumini from being able to testify as to his mental
    state when he committed the shooting and what led him to that mental state.
    The evidence of the prior threats provided essential context to Zumini’s
    thought process leading up to Zumini’s final confrontation with Tony, and
    could have corroborated Zumini’s testimony that he perceived Tony as an
    imminent threat. Moreover, there is a reasonable probability that the
    excluded evidence could negate the mens rea required for first degree murder
    and support a finding of either voluntary manslaughter or second degree
    murder. (See People v. Millbrook (2014) 
    222 Cal.App.4th 1122
    , 1139 [heat of
    passion for voluntary manslaughter may arise “from a fear that did not rise
    to the level of fear required to establish self-defense”]; Hernandez, supra,
    183 Cal.App.4th at p. 1332 [explaining that even if the provocation would not
    cause an average person to experience deadly passion as to reduce the crime
    to voluntary manslaughter, but precludes the defendant from subjectively
    deliberating or premeditating, the crime is second degree murder]; see also
    People v. Sotelo-Urena (2016) 
    4 Cal.App.5th 732
    , 756-757 (Sotelo-Urena)
    [reasonable probability existed that even if jury rejected defendant’s self-
    defense claims, it might have returned a verdict of second degree murder or
    voluntary manslaughter rather than first degree murder based on the
    erroneously excluded evidence].)
    The prosecution capitalized on the absence of the evidence related to
    Tony’s prior threats during closing arguments. Without having to contend
    28
    with Tony’s history of threatening Zumini, the prosecution was able to
    characterize Tony and Zumini’s relationship as merely “up and down.” The
    prosecution also focused on Zumini’s demeanor during his testimony,
    suggesting Zumini’s “emotionless[ness]” was odd for a person who killed his
    father. In addition, the prosecution highlighted to the jury that “little” about
    Zumini’s family history had been submitted into evidence, and admonished
    the jurors not to speculate about such details that were not in the record.
    We acknowledge that aspects of Zumini’s self-defense and heat of
    passion claims are not compelling. Nevertheless, as the prosecution
    emphasized during closing arguments, very “little” was presented to the jury
    to explain why Zumini shot his father. This is because the trial court
    improperly excluded Zumini from presenting evidence regarding Tony’s prior
    threats, evidence which was crucial to the defense. We therefore conclude
    that such error was not harmless beyond a reasonable doubt, and that it was
    also reasonably probable the error affected the verdict adversely to Zumini.
    (See Padilla, supra, 103 Cal.App.4th at p. 892 [improper exclusion of
    evidence relevant to defendant’s state of mind that could have supported
    conviction for second degree rather than first degree murder satisfied the
    standard for prejudice under Chapman and Watson); see also Minifie, 
    supra,
    13 Cal.4th at p. 1070 [reasonably probable that court’s erroneous exclusion of
    evidence of third-party threats that went to the “ ‘heart of’ ” defendant’s claim
    of self-defense prejudiced the defendant]; Sotelo-Urena, supra, 4 Cal.App.5th
    at pp. 756-758 [rejecting argument that erroneous exclusion of evidence
    “critical” to defendant’s state of mind should be analyzed for error under
    Chapman, but concluding it was reasonably probable the error was
    prejudicial under the Watson standard].)
    29
    DISPOSITION
    The judgment of conviction is reversed.
    O’ROURKE, J.
    I CONCUR:
    HALLER, Acting P. J.
    30
    Do, J., Concurring.
    Andrew Zumini shot and killed his father, Anthony “Tony” Zumini, Sr.,
    on the night of September 6, 2013. Six of the shots entered Tony’s back, and
    at least five of these wounds were fatal.
    The prosecutor told the jury it was a “simple and straightforward” case
    of first degree murder, and that “the case [wa]s dripping with willfulness,
    premeditation, and deliberation.” “[Zumini] had decided on this night it was
    going to be the night to commit the murder” of his father. Armed with a
    loaded gun, Zumini went “hunting” for his father, and killed him “execution-
    style.”
    The prosecutor told the jury there was nothing more to know:
    “[T]here’s no hidden mystery story here.” (Italics added.) “Things in this case
    are exactly what they appear to be.” (Italics added.) And the defense’s
    attempts to demonstrate otherwise were based on “illusion.”
    What the prosecutor said to the jury was not true. On the prosecution’s
    motion, the trial court had eliminated an entire category of defense evidence
    that would have presented far more to the story than the jury was permitted
    to hear.
    Zumini did not dispute he shot and killed his father, but he disputed
    the claim he did so deliberately and with premeditation. He asserted “he did
    not go to Tony’s house with the intention of shooting him.” Rather, he went
    there to confront Tony about his “relentless and escalating” threats and acts
    of violence against Zumini, his girlfriend Gabby Assaad and their baby A.,
    and he “brought a gun to show he could defend himself and wasn’t afraid.”
    He further asserted “that even in the confrontation, he had no intent to shoot
    1
    Tony until it happened, he was in a state of extremely heightened fear, and it
    all happened very suddenly.”
    To show he did not possess the mens rea required for first degree
    murder, Zumini offered to prove specific threats and acts of violence
    committed by Tony against Zumini and his family over a long period of time,
    escalating during the year and months leading up to the homicide. These
    threats and acts of violence included:
    • Tony made repeated threats against Zumini “to hurt and kill” him,
    including in phone calls, texts, emails, and voice mails.
    • Tony showed Assaad a handgun and said, “ ‘This is for [Zumini], to
    finish him off.’ She believed Tony was serious, and she told [Zumini]
    about the gun and the threat.”
    • Tony brandished a knife at Zumini on three occasions.
    • Tony initiated confrontations with Zumini in public.
    • After Zumini unsuccessfully sought a restraining order against Tony,
    Tony (a gang member) used the court paperwork to encourage fellow
    gang members to retaliate against Zumini for being a “snitch” and
    “collaborating with police.”
    • Twice, Tony “chased” Zumini and Assaad in a car at high speeds while
    their baby was in the car with them. On one of these occasions, Tony
    pursued them for an hour and a half, until Assaad called 911.
    • When Zumini was in his car with Assaad and the baby at a stoplight,
    Tony “ran up and tried to stab” the car tire, “had his knife out in a
    threatening manner and was trying to get at [Assaad] and baby [A.]”
    Tony “was pounding on the window where the baby was with his
    knife.”
    • About a month before the homicide, Tony wrote a letter to his son Alex
    complaining about Zumini and stating, “ ‘I’m going to hammer his
    mouth shut once and for all.’ Alex construed this as an unambiguous
    death threat against [Zumini].”
    • Tony drove by Zumini’s house “many times at odd hours to frighten
    him,” and he “often brought several others in his car when cruising
    past [Zumini’s] house.”
    2
    • “About 10 days before the homicide, Tony made a threat to . . . Rick
    Cordova that he would shoot at the houses where [Zumini] and
    [Assaad] were living. Cordova conveyed this threat to [Zumini].”
    (Italics added.)
    Hours before the homicide, Zumini was told by a neighbor that Tony’s
    car had been parked on his street that same day, between 1:00 and 3:00 a.m.
    The defense asserted that, based on Tony’s escalating violence and
    threats, Zumini believed “Tony had rapidly become dangerously out of
    control, and that there was a high likelihood that he, [Assaad], or [baby A.]
    would be seriously injured.” It was in this mental state and due to these
    specific threats and acts of violence by Tony that, on the night of the
    homicide, Zumini went to his father’s house with a gun, not to shoot him, but
    to confront him and put on a show of strength, the defense asserted. Zumini
    was in a “state of extremely heightened fear” and “had no intent to shoot
    Tony until it happened.”
    The prosecution did not dispute these specific events of violence by
    Tony against Zumini and his family had occurred. 1 It even sought to admit
    evidence of some of the same events⎯though in its version, Zumini was the
    violent antagonist⎯in order to prove Zumini’s mental state for first degree
    murder.
    The trial court said it had “no issue” with the prosecutor’s request. But
    it convinced the prosecution to withdraw its motion because, although the
    evidence was relevant, its presentation by the prosecution would “open the
    door” to admission of the defense evidence for Zumini to show he had a
    different mental state. Then, in ruling after ruling, the court repeatedly
    1     The trial court also did not question these events happened, stating: “I
    believe they occurred.”
    3
    deemed the specific threats and acts of violence by Tony against Zumini and
    his family irrelevant when offered by the defense.
    Ultimately, the trial court precluded every defense fact and expert
    witness from testifying about any of the menacing, violent, and threatening
    acts that Tony committed against Zumini and those close to him. The trial
    court ruled that even the defendant could not explain his mental state by
    testifying, in his own words, about a single instance of Tony’s specific threats
    and acts of violence against him and his family. Its reason: evidence of
    Tony’s threats and acts of violence against Zumini and his family were not
    relevant to any issue at trial.
    And so with Zumini as the only defense witness, and with Zumini’s own
    testimony severely restricted, the prosecutor told the jury “to quantify” the
    evidence and argued: “On the defendant’s side you really only have the
    defendant’s word.” “Do you trust what he told you?” The jury convicted
    Zumini of first degree murder.
    I concur with the majority’s conclusion that the trial court prejudicially
    erred in excluding the defense evidence, and that the jury’s verdict cannot
    stand. But I am unable to subscribe to much of the majority opinion. I find
    the majority opinion’s description of the trial court proceedings is distilled to
    the point it omits information critical to understanding and evaluating the
    gravity of the trial court’s erroneous evidentiary rulings, and the profound
    effect these errors had on the defense presentation at trial. I believe the
    majority opinion’s analysis of the trial court’s errors does not adequately
    address all crucial issues raised in this appeal. Last, unlike the majority
    opinion, I would conclude the trial court’s errors were of constitutional
    dimension and must be reviewed for harmlessness under the stricter test
    articulated in Chapman v. California (1967) 
    386 U.S. 18
     (Chapman).
    4
    I.
    Trial Proceedings
    The majority opinion fails to provide, in my view, a sufficient account of
    what happened in this trial. The proffered defense evidence was the subject
    of numerous pretrial hearings and sidebar conferences which dominated the
    course of the defense presentation at trial, and ultimately generated
    numerous erroneous rulings. Because it is not possible to appreciate the
    extent to which the trial court’s erroneous rulings impacted the defense
    presentation at trial, I provide additional details of the proceedings below.
    A.    Pretrial Motions
    1.    Zumini’s Motion in Limine
    One month before trial, Zumini filed a motion in limine in which he
    stated that he did not dispute shooting and killing his father. The only issue
    he disputed was his mental state at the time of the shooting. He would
    testify “he did not go to Tony’s house with the intention of shooting him.”
    Rather, he went there to “confront” Tony about his prior threats and acts of
    violence against him and his family, and he brought a gun “to show he could
    defend himself and wasn’t afraid.” He would testify that “even in the
    confrontation, he had no intent to shoot Tony until it happened, he was in a
    state of extremely heightened fear, and it all happened very suddenly.”
    Zumini informed the court he intended to call “numerous” percipient
    witnesses to Tony’s threats and acts of violence.
    Zumini also sought to introduce expert testimony he contended “would
    assist the jury in understanding the reasons why [Zumini] would bring a gun
    to confront Tony if, as [Zumini] is expected to testify . . . ‘he did not want a
    lethal confrontation with his father.’ ” Richard Ferry, a licensed marriage
    and family therapist whom the defense identified as a domestic violence
    5
    expert, had interviewed Zumini, Assaad, Zumini’s mother Sally, and Zumini’s
    brothers Alex and Anthony, and had reviewed reports of statements by eight
    other witnesses.
    According to Ferry’s report, Tony and Zumini’s mother were together
    for the first five years of Zumini’s life, during which Zumini was exposed to
    Tony’s “extreme and relentless violence.” When he was five, Zumini saw
    Tony physically violent with his mother on numerous occasions. Zumini grew
    up terrified of Tony, but he also sought his father’s love and acceptance. As
    an 11- and 12-year-old, Zumini secretly kept in touch with Tony. Zumini
    described his relationship with Tony as “up and down” from 2006 to 2013.
    Tony would often become “angry, challenging, threatening and degrading
    toward [Zumini]” because Zumini refused to accompany Tony on “drug
    trafficking activities or gang[-]related confrontations.”
    Assaad and Zumini saw Tony “from time to time” when she was
    pregnant in 2012. After baby A. was born, Assaad did not have a place to live
    and, at Tony’s invitation, she and the 10-month-old baby moved into his
    apartment in June 2013. After one week though, Tony became controlling
    and abusive toward Assaad and the baby. The summer of 2013 began a
    period of escalating violence and hostilities by Tony, including the previously
    described incidents.
    Assaad also reported that Tony isolated and prohibited her and the
    baby from having contact with Zumini. He took pictures of Assaad with his
    other son, Raymond Lizotte (Zumini’s half-brother), that suggested the two
    were “in an intimate relationship” and sent them to Zumini to provoke him.
    Tony also made Assaad “file for full custody [of the baby] in order to provoke”
    Zumini, and threatened he would throw her and the baby out if she did not do
    6
    it. He told Zumini “he would never see [baby A.] again” and “threatened to
    physically take [baby A.] away.”
    Assaad recalled an incident over July 4, 2013 when she and Tony
    arrived at his house to find a broken window (the July 2013 incident). Tony
    and Lizotte immediately went to confront Zumini at his house. Later, Tony
    took Assaad’s cell phone and sent Zumini a text “to bait [him] into coming to
    his apartment because he had [Lizotte] waiting to physically assault [Zumini]
    when he arrived.” Zumini did not respond. Other times when she was with
    Tony, he “physically threatened or attacked [Zumini] when he saw [Zumini]
    out in public.” Once, Tony showed her a handgun and said, “ ‘This is for
    [Zumini], to finish him off.’ ” Assaad believed Tony was serious, and she told
    Zumini about the gun and the threat. In July 2013, Assaad took the baby
    and moved out of Tony’s place. She and Zumini got back together. But even
    after Assaad moved out, Tony “stalked and intimidated” her, once grabbing
    her and trying to punch her at her work.
    As a result of Tony’s violence, Assaad stated Zumini was “extremely
    paranoid” of Tony. “He feared Tony . . . so much he couldn’t relax or let his
    guard down.” Zumini made Assaad carry pepper spray to protect herself and
    the baby, and he “always had a bat in [his] car” for his protection. “He was
    obsessive about her safety and the baby’s safety.” Assaad believed “[h]e was
    living in genuine fear for his safety,” and that of hers and the baby’s as well.
    At an evidentiary hearing held on a later date, Ferry would opine that
    Zumini suffered from complex post-traumatic stress disorder (PTSD) and
    generalized anxiety disorder as a result of his violent experiences with Tony.
    He observed in his report that Zumini “was very scared” of Tony and “in
    [Zumini’s] mind, the situation had rapidly become dangerously out of control,
    with a high likelihood that [Zumini], [Assaad] or [baby A.] would be seriously
    7
    injured.” Zumini perceived his father as “relentless and unstoppable.” Ferry
    opined that “[v]ictims of continuing violence . . . gradually evolve various
    strategies to cope . . . and to reduce the likelihood of additional violence or
    more severe violence.” Zumini had exhibited such a coping strategy when he
    “attempt[ed] to discourage his father from any further aggression by
    demonstrating to his father that they were equally matched in their capacity
    to defend themselves and to inflict harm on the other if it became necessary.”
    The defense argued Ferry’s expert testimony was admissible because it
    would “ ‘help[ ] the jury understand the situation from [the] defendant’s
    perspective,’ ” to explain why Zumini “would bring a gun to confront Tony if,
    . . . he had no preexisting intent to use it,” and thereby support the defense’s
    effort to raise a reasonable doubt on the element of premeditation.
    2.    The Prosecution’s Motions in Limine
    The prosecution filed two motions in limine relevant to this appeal. In
    one, the prosecution sought to admit evidence of the same July 2013 incident,
    but a different version, and certain aspects of Zumini’s relationship with
    Tony. It asserted the evidence was admissible to prove Zumini had formed
    the intent to “shoot and kill his father two months before murdering him,”
    under Evidence Code section 1101, subdivision (b) (the 1101(b) motion). 2 In
    the other motion, it sought to simultaneously preclude the defense from
    introducing “any of [Tony’s] acts of prior violence” against Zumini, contending
    such evidence was inadmissible “[p]rior [b]ad [a]cts” under section 1103 (the
    1103 motion). (Italics added.)
    In the 1101(b) motion, the prosecution sought to admit evidence that a
    “rift” had developed between Zumini and Tony when Assaad, who was “then-
    2     Unspecified statutory references are to the Evidence Code.
    8
    estranged” from Zumini, went to live with Tony in June 2013. It asserted
    that “[t]his embarrassed [Zumini] and caused him to become extremely
    angry” with his father. Zumini believed Tony “was inappropriately meddling
    in his personal affairs and had turned on him by taking sides with Ms.
    Assaad.” Tony “helped Ms. Assaad file a law suit against [Zumini] to obtain
    full custody of their child” and Zumini “blamed” Tony for the custody dispute
    with Assaad. Zumini came to believe that Tony was “encouraging” Assaad
    “to become romantically involved with one of his other sons, Lizotte.” Zumini
    “viewed [Tony’s] behavior as outright betrayal and he wanted revenge.” So
    he “began making hostile phone calls and sending threatening text messages
    to [Tony].”
    The prosecution also sought to admit evidence of the July 2013
    incident, in which it contended that Zumini drove by Tony’s house and “threw
    a beer bottle that broke [Tony’s] kitchen window” and “left a taunting
    v[oice]mail for his father.” When Tony discovered the broken window and
    heard the voicemail, he and Lizotte went to Zumini’s house “to talk to
    [Zumini] about it.” There, Zumini and Anthony threatened Tony and Lizotte
    with a knife and baseball bats. When the police arrived, they saw Zumini
    “had his bat cocked and ready to strike” Tony. Zumini and Anthony were
    arrested, and Anthony was later convicted of misdemeanor assault.
    The prosecution argued its proffered evidence was “highly probative”
    because it established Zumini had a motive to kill his father and an “intent to
    shoot and kill his father two months before murdering him.” It argued the
    evidence was therefore admissible under section 1101, subdivision (b), to
    prove “intent, plan, and preparation.”
    At the same time, in the 1103 motion, the prosecution sought to
    preclude the defense from introducing evidence of “any of [Tony’s] acts of
    9
    prior violence” against Zumini. (Italics added.) The evidence the prosecution
    sought to exclude included defense witness testimony about the very events
    the prosecution asserted were relevant and admissible in its 1101(b) motion. 3
    Characterizing these specific acts of violence as Tony’s “[p]rior [b]ad [a]cts,”
    the prosecution argued such evidence was inadmissible under section 1103,
    as well as People v. Hoyos (2007) 
    41 Cal.4th 872
     (Hoyos) and People v.
    Gutierrez (2009) 
    45 Cal.4th 789
     (Gutierrez), among other cases.
    The prosecution asserted that, although Zumini “may argue” this
    evidence supports his claim of imperfect self-defense, Zumini was precluded
    “[a]s a matter of law” from asserting the defense and obtaining a jury
    instruction on voluntary manslaughter. Thus any evidence of Tony’s prior
    acts of violence was “irrelevant.” (Italics added.) Relying on Hoyos and
    Gutierrez, the prosecution argued that for a victim’s “ ‘propensity for violence
    to be relevant, there must be some evidentiary support for a self-defense-type
    theory.’ ” The prosecution further asserted that as a matter of procedure,
    “before a trial court even entertains allowing any of a victim’s prior acts of
    violence into evidence, a defendant must first establish a prima facie case of
    self-defense.” (Italics added.)
    Although no evidence had yet been presented⎯the jury would not be
    empaneled for another month⎯the prosecution argued two items of evidence
    foreclosed Zumini from claiming imperfect self-defense: Zumini confessed to
    3      For example, the prosecution sought to exclude Anthony’s testimony
    that on July 3, 2013, Tony “showed up at [Zumini’s] house with two to three
    carloads of people, but no physical violence occurred.” It also sought to
    exclude Assaad’s testimony about her experiences with Tony during the time
    she lived with him in June 2013, which experiences were contrary to the
    prosecution’s version of the events it alleged gave rise to Zumini’s motive to
    kill Tony.
    10
    the police that he “ ‘went [to the Victim’s house] with a gun because [he was]
    tired of his shit and [he was] gonna put some bullets in [the Victim.]’ ” And
    the manner of killing⎯Zumini shot his father “numerous times in the back”
    as he was running away⎯“necessarily means that [Zumini] did not kill him
    to prevent any threat of imminent harm.” The prosecution argued that based
    on this “evidence,” a defense of self-defense was unavailable to Zumini,
    making the defense evidence of Tony’s “bad acts” irrelevant.
    A note about the alleged confession: In his motion in limine, the
    prosecutor did not explain where the quote attributed to Zumini could be
    located. On appeal, the People have included the quote of Zumini’s alleged
    confession to the police in their response brief. But they cite, as their source,
    the prosecutor’s own unsourced quotation from his motion in limine. I have
    not been successful in my efforts to locate evidence of the confession
    attributed to Zumini in the record on appeal. 4 At trial, the prosecutor did not
    present evidence that Zumini made the alleged confession. Thus, having
    argued that Zumini’s alleged confession was a “fact” of the case that rendered
    an imperfect self-defense claim unavailable to the defense and precluded
    4      The defense moved in limine to suppress statements of Zumini on the
    grounds they were obtained in violation of Miranda v. Arizona (1966) 
    384 U.S. 436
    . The defense attached two transcribed interviews to its motion,
    along with two police reports summarizing information obtained from
    Zumini. The alleged confession does not appear in these exhibits. Five
    exhibits were received from the prosecution during the suppression hearing,
    four of which were transcriptions of interviews. The People did not cause
    these exhibits to be transmitted to this court with the record on appeal. The
    trial court found there was no Miranda violation and denied the motion to
    suppress, thereby allowing the prosecution to introduce evidence of any
    statement of Zumini’s it wished.
    11
    admission of the defense’s evidence, the prosecution never attempted to prove
    that fact at trial.
    3.     June 21, 2018 Motions in Limine Hearing
    The trial court considered the motions at a hearing on June 21, 2018.
    It first considered the prosecution’s 1101(b) motion to introduce evidence the
    court labeled “euphemistically, [as] family history.” The court told the
    prosecutor, “I have no issue, frankly, with your wanting to put those in.” The
    court stated it was “concerned,” however, that if the prosecution put in
    evidence of “the history of these two people” to “show [Zumini’s] state of
    mind,” it would have to permit the defense to present “another side of the
    story” to explain Zumini “really didn’t have that state of mind.” The court
    explained that if the prosecutor were to put “nothing in about motive,”
    however, it would be “a clean situation” and “1103 may be in play,”
    suggesting the defense would have greater difficulty getting its evidence in.
    In response, the prosecutor withdrew his 1101(b) motion, stating,
    “given the choice, I would rather try this as a discrete incident.” The
    prosecutor said his revised case-in-chief would start with Zumini’s phone call
    to Lizotte three hours before the homicide.
    Defense counsel responded Zumini was entitled to testify as to his state
    of mind to rebut the inference he killed deliberately and with premeditation
    that might arise from the circumstantial evidence. The trial court disagreed.
    It ruled that “before” the defense could “get into state of mind [evidence]” and
    “the history” between Zumini and Tony, “there ha[d] to be some issue of self-
    defense or imperfect self-defense.” (Italics added.) The trial court told
    defense counsel that Zumini would not “be able to automatically testify as to
    the history of the relationship with his father” and “if [Zumini] decides to
    12
    testify, . . . you will need to start with the circumstances as to what happened
    that day and work backwards.” (Italics added.)
    4.    Zumini’s “Memorandum of Points and Authorities re: Right to
    Present A Defense, Part Two: Defendant’s Right to Testify Without
    Fetters”
    On June 25, 2018, the defense filed a brief objecting to the trial court’s
    ruling “that Mr. Zumini’s testimony would be constrained” and “limited to
    stating facts sufficient to warrant jury instructions on heat-of-passion
    voluntary manslaughter, self-defense or imperfect self-defense.” The defense
    specifically objected to the court’s temporal restriction on Zumini’s testimony,
    requiring him to begin with the homicide and testify “in reverse chronological
    order.”
    The defense reiterated that its evidence was being offered to rebut the
    inference of premeditation that would otherwise arise from the fact Zumini
    had a gun with him when he drove to Tony’s house on the night of the
    homicide. It argued Zumini’s testimony would also serve to establish
    subjective provocation reducing the murder from first to second degree, and
    that the testimony of other defense witnesses was relevant because it would
    corroborate Zumini’s account.
    The defense argued the court’s limitations on Zumini’s testimony were
    unwarranted, and stood to violate his constitutional rights under the Sixth
    and Fourteenth Amendments. It argued that by restricting Zumini to
    testifying to facts in support of specific jury instructions, the court was
    intruding on his right to present a defense, his related right to testify on his
    own behalf, and on his ability “to buttress the presumption of innocence and
    to strengthen reasonable doubt as to the truth of the charge.”
    13
    5.     June 25, 2018 Motion in Limine Hearing
    At a hearing on June 25, 2018, the trial court focused on the defense
    request for an order allowing Ferry to testify. The court observed that
    Ferry’s report did not include a psychological diagnosis of Zumini, and
    indicated the absence of a diagnosis stood to render Ferry’s testimony
    inadmissible under People v. Cortes (2011) 
    192 Cal.App.4th 873
     (Cortes),
    because in Cortes, the expert had provided a psychological diagnosis of the
    defendant. The court stated that if Ferry were to “get his opinion in line
    with” Cortes, Zumini would be permitted to testify about “the history of the
    relationship [with his father], because that would be the basis for the
    diagnosis by Mr. Ferry.”
    At this time, defense counsel reiterated that “evidence of [Tony’s]
    course of conduct [was being] offered to prove [Zumini’s] state of mind” and
    was admissible under section 1101, subdivision (b). He clarified the defense
    was not offering evidence of Tony’s prior violence “to prove his character
    under section 1103” and it was not “seeking to prove [Tony was] a violent
    man.” Rather, such evidence was being offered to specifically rebut the
    prosecution’s “theory of the case . . . that it’s a premeditated, deliberate
    murder” and that Zumini went to his father’s house with the “preformed”
    intent to kill.
    The trial court responded: “I didn’t hear [the prosecution’s] case rest on
    the fact that Mr. Zumini went over there with the intention of killing his
    father. [¶] I heard [the prosecution’s] case rests on the fact that . . . father
    did not do anything to provoke this shooting; that he was shot in the back,
    whatever number of times, and there was no reason for that, other than your
    client wanting to kill his father.” It then turned to the prosecutor and asked,
    “Is your argument that Mr. Zumini went there to kill his father that day?”
    14
    The prosecutor responded, “That’s my understanding of the case[.]” The
    court advised the prosecutor (a second time): “[I]f the theory of the case is
    that Mr. Zumini went over there that day with the intention of killing his
    father, that could possibly open the door to the entire relationship.”
    6.    June 26, 2018 402 Hearing re: Ferry’s Testimony
    At the section 402 evidentiary hearing the next day, Ferry testified his
    working diagnosis of Zumini was that he suffered from generalized anxiety
    disorder and complex PTSD. He explained Zumini’s symptoms were not
    difficult to detect. The symptoms of generalized anxiety disorder suffered by
    Zumini included feeling: “[n]ervous, anxious, on edge much of the time,”
    unable to control or stop worrying, and “feeling afraid, as if something awful
    might happen.” Complex PTSD refers to the “trauma that occurs usually by
    a primary caretaker or a significant caretaker at developmentally vulnerable
    times in a person’s life” and results from cumulative, repetitive interpersonal
    trauma.
    Ferry explained that Zumini had witnessed “serious violence [by Tony]
    against his mother, against his brothers, against his sister,” and “[h]e was
    occasionally the subject of [Tony’s] violence” as a younger child. Tony’s
    violence “terrorized” Zumini during the developmental ages of two to 11, the
    ages when complex PTSD typically develops. Ferry was “confident” both
    diagnoses were present in Zumini during the summer of 2013 and he was
    “very certain they were in play at the time of the crime.” He testified that
    although the complex PTSD “was already established” at the time of the
    shooting, it is “exacerbated when [Zumini is] under stress or under what he
    perceives as threat by his [father].”
    At the conclusion of the hearing, the trial court ruled that Ferry could
    testify at trial, but that his testimony would “be limited to the working
    15
    diagnosis and the effect that that working diagnosis and the traits associated
    with that working diagnosis may have had on Mr. Zumini at the time of the
    commission of the offense.”
    7.    July 16, 2018 Defense “Objection to Requiring Offer of Proof or
    Similar Artificial Restrictions Before Defendant Testifies to His
    Account”
    On July 16, 2018, the eve of trial, the defense filed a written objection
    in an apparent attempt to refocus the trial court on its theory of admissibility
    of the proffered evidence. The defense again emphasized that Zumini
    disputed the claim he had the mens rea for first degree murder, and he
    intended to testify he did not go to his father’s house with the intention of
    shooting him. The defense argued its evidence of Tony’s prior threats and
    acts of violence was relevant under People v. Minifie (1996) 
    13 Cal.4th 1055
    (Minifie) and other cases, to explain and corroborate Zumini’s testimony
    about his state of mind, and was admissible under section 1101, subdivisions
    (b) and (c). It argued that under Rock v. Arkansas (1987) 
    483 U.S. 44
     (Rock),
    Zumini had a due process right to testify in his own defense, and that this
    right would be infringed if he were subjected to the requirement that he first
    testify to facts supporting a claim of self-defense or provocation before being
    permitted to testify about the events and circumstances that would allow him
    to explain his state of mind at the time of the homicide.
    The trial court held this objection in abeyance until after Zumini took
    the stand, at which time it overruled it.
    B.    Direct Examination of Zumini
    Zumini’s direct examination took place in stages, interrupted by
    multiple hearings outside the presence of the jury during which the trial
    court considered whether Zumini’s testimony about the homicide had
    established a prima facie case of self-defense or provocation. Unable to refer
    16
    to the proffered, but not-yet-admitted, evidence of Tony’s threats and acts of
    violence against him, Zumini could only make bare assertions of his mental
    state at the time of the shooting.
    Zumini admitted he killed his father, but testified he did not go to his
    father’s house on September 6, 2013 with the intent to kill him.
    Zumini “fear[ed] his father” when he was young, and the fear “lessened
    or went away” after his parents separated when he was five years old. His
    mother discouraged him from developing a relationship with Tony. He
    “kn[e]w why,” but despite what he was told, he still wanted a relationship
    with his father.
    Things were “not okay” between Zumini and Tony before 2007 “on and
    off.” They had “disagreements,” but Zumini could not say what they were
    about without “giv[ing] background.” The disagreements left Zumini with
    “frustration and anger” because he did not want to do what Tony was asking
    him to do. Their disagreements had to “do with the law,” and Zumini did not
    want to break the law.
    Zumini and Assaad had baby A. in 2012. When Tony found out Assaad
    was pregnant, Tony “said he was trying to calm down” and “stop all the
    bullshit.” Although Zumini had misgivings and thought he should “be
    careful” of Tony, he let Tony meet the baby at Christmas in 2012. Six months
    later, in June 2013, Assaad and the baby moved into Tony’s apartment
    because Assaad needed help with rent. At first, Zumini would go to Tony’s
    apartment every day after work to see Assaad and the baby. Zumini’s
    relationship with Assaad became “rocky” when they started having disputes
    over the baby.
    By early or mid-July 2013, Zumini developed a “concern . . . that [Tony]
    was going to start rounding up people and come up by [his] house.” When
    17
    defense counsel asked whether Zumini had “received some kind of warning
    about that” and Zumini testified he had, the prosecutor immediately asked to
    approach the bench. After an unreported sidebar conference, the court
    excused the jury for a lunch recess.
    Outside the presence of the jury, defense counsel stated he believed the
    court’s comments to counsel at sidebar indicated that it had effectively denied
    the defense’s July 16, 2018 written objection to the constraints imposed on
    Zumini’s testimony. The court responded that it had not ruled on the
    objection and would be unable to do so until it learned “what happened on”
    the day of the shooting. Defense counsel then said he would resume his
    examination by starting with the evening of September 6 and “then
    backtrack.”
    Defense counsel asked Zumini about the items found in his car on
    September 6, 2013. Between July 3 and September 6, Zumini put a utility
    knife, a folding knife, and a used knife in either side door pockets of his car.
    He and Assaad bought pepper spray and, in early August, he and his brother
    Anthony bought a can of bear spray, both of which Zumini put in his car. In
    the middle of August, he got a gun. On the evening of the shooting, the gun
    was on the rear floorboard of the passenger side of his car.
    At 5:00 p.m. on September 6, Zumini decided he would go to Tony’s
    house with his brother Anthony. They “were going to go confront” Tony and
    Lizotte “so they would take . . . our threats serious and stay away from our
    block.” Zumini explained he had “made all kinds of threats” to his father
    because “they were making threats and bringing people by the house.” After
    trying unsuccessfully to call Tony, Zumini called Lizotte and Tony’s wife to
    let them know that he and Anthony “were going to be over there later.”
    18
    Zumini drove over to Tony’s by himself; Anthony had decided not to go.
    It was dark outside when Zumini arrived at Tony’s place. After driving by
    and seeing no signs that anyone was home, Zumini decided to leave. He then
    saw Tony and Lizotte in his driver’s side mirror. Lizotte came out “throwing
    his arms up like in a challenging gesture, like, where the fuck you going?
    Come on.” Zumini turned his car around and “came back towards them,”
    driving about five to 10 miles per hour. He rolled up the passenger side
    window and locked the passenger side door, because Tony and Lizotte were
    going to be on that side of the car, and “sometimes they attack first.”
    As Zumini got closer to Tony and Lizotte, he could see a third person
    behind Tony which concerned him. Zumini then saw Lizotte “putting a glove
    on or wrapping his hand,” which looked to Zumini like Lizotte “might be
    possibly getting ready to fight.” Lizotte then pulled a bandana he wore
    around his neck over his nose. Lizotte started running alongside Zumini’s
    car, then dealt three or four hard hits to the metal pillar separating the front
    and rear passenger side windows. Zumini took that to mean Lizotte “had just
    initiated a confrontation.”
    Zumini decided to stop because “[i]f [he] dr[o]ve off again, like [he]
    usually do[es], they [would] keep coming to [his] house.” He grabbed his gun
    and when he got out of the car, he saw Lizotte and said to him, “[W]hat’s up
    motherfucker? You wanna run up on me, you little bitch.” As Zumini
    “started to clear the rear of [the] car,” he saw Tony moving. Tony was
    between seven and nine feet away, moving in Zumini’s direction, not saying
    anything and just “looking” at Zumini. Zumini testified he “felt that [Tony]
    19
    could have attacked.” He knew “[f]or sure” that Tony had his knife, 5 and
    believed Tony “could have possibly had something more,” including a gun.
    Zumini fired one shot in Tony’s direction. Lizotte took off running.
    Zumini “chase[d]” Tony, who ran down a breezeway, and continued to
    shoot while running “at full speed.” He testified he was not thinking
    anymore after he fired the first shot, and was “just worried about stopping
    [Tony].” He explained that Tony “[u]sually” would “back up and then pull the
    knife out, or usually reach for something, or run around.” Zumini testified he
    was concerned for his life at that time, including when he fired the first shot.
    He fired a second shot and Tony fell, but not “all the way.” Zumini saw Tony
    was “still up.” Zumini “kept going forward” and when he stopped running, he
    continued to shoot until the gun stopped firing. He had not realized he had
    emptied the gun.
    After Tony fell to the ground and Zumini had stopped shooting, Zumini
    stood “somewhere between [Tony’s] waist area and his feet” and saw Tony
    make a gesture with his hands. Zumini read the gesture to mean that Tony
    was “saying, don’t shoot no more,” that “he’s gonna back off, that he’s now
    taking the threat serious,” or “he [was] gesturing that [he was] unarmed” and
    showing that his hands “are now empty.” Zumini did not see Tony’s knife on
    the ground.
    At this point, the trial court excused the jury for the afternoon recess.
    Outside the presence of the jury, a lengthy hearing ensued. The court asked
    defense counsel, “What factually do you contend the father did to provoke
    your client into shooting him the number of times that he did?” The court
    5     A folding knife, with the blade closed, was found next to Tony’s body;
    Lizotte identified it as the knife Tony carried on his waistband “every day.”
    20
    explained the “majority of the fatal shots . . . in the back” raised issues
    regarding the defense claims of provocation and self-defense. It found “[t]he
    record . . . devoid of information with respect to, [why Zumini] made a
    decision to get out of the car with a gun.”
    Defense counsel asserted he could not fully explain to the court, or to
    the jury, Zumini’s state of mind at the time of the shooting, including on the
    issue of provocation, without the context of Zumini’s relationship with Tony.
    The trial court stated it had “not heard anything that said [Zumini] was
    anything other than the person who provoked the entire situation from start
    to finish.” It failed to see “factually where this fits into a legal theory of
    provocation, heat of passion.” Defense counsel responded, “The reason that
    you can’t see it is that you’re only looking at ten minutes that happened on
    September 6th.” The trial court stated, “the case law says that that’s where I
    have to start,” and that it needed to “see if the facts match up to a theory of . .
    . some defense, and then we work back from there.” (Italics added.)
    Defense counsel responded: It was a “battle of dominant alpha male
    and his beta son,” and “the beta son was in a position of, I either have to show
    up and alpha my dad, or he’s gonna beta me to the death. And I’m not
    exaggerating death, because the specific threats were to kill [Assaad] . . .
    [a]nd others were telling [Zumini] that, your dad is out to kill you. Get
    yourself a gun.” He asserted “the reason that Mr. Zumini[ ] went over to his
    father’s house was to stop that course of conduct.” He argued the provocation
    “was a low simmering boil” and Zumini “was under the stress of that fear of
    his father, and . . . did not act as a rational person might, because he was so
    provoked by his father’s relentless pursuit of him and his family.” The court
    found Zumini’s testimony had failed to establish provocation and self-defense
    “at the present time” and told the defense Zumini could not “get into the
    21
    family history. Defense counsel said he would “re-plow the ground” in an
    effort to satisfy the court.
    Defense counsel resumed his examination at the moment Zumini got
    out of the car with a gun. Zumini testified he understood from Tony’s body
    language and facial expression that “[t]here’s not going to be any talking.”
    Zumini did not see Tony with a knife, but he was afraid because he knew
    Tony carried a knife. When defense counsel then asked Zumini why he got
    out of the car with a gun, the trial court sustained the prosecution’s objection
    despite its earlier statement that “why” Zumini got out of the car with a gun
    and ran after “the person who didn’t bang on his car” was “quite probative
    and relevant” to provocation and self-defense.
    Zumini testified that after he fired the final shots and saw Tony on the
    ground, he did not realize he had killed his father. Although he saw “the
    blood flowering on the back of [Tony’s] shirt,” Zumini believed that “when
    [Tony] goes quiet, that’s when he’s the most dangerous.” Zumini testified he
    had been unable to control himself “[i]n those moments,” because he was not
    thinking and was in “fear” of Tony.
    Trial resumed the next morning and outside the presence of the jury,
    the court stated that Zumini’s testimony still fell short of supporting jury
    instructions on self-defense or provocation. The court stated that Zumini had
    not testified “he was in imminent fear of death, . . . [rather] his father was
    advancing on him, and he snapped.” (Italics added.)
    Defense counsel resumed his examination. Zumini testified he had
    threatened Tony between 2005 and 2007, and again in late June or early July
    2013. When defense counsel attempted to elicit why Zumini had made such
    threats, the trial court sustained a series of relevance objections by the
    prosecutor. Zumini was permitted to testify he was in fear on September 6,
    22
    2013 and he put the knives in his car at some point after he threatened Tony,
    but he was not permitted to explain the circumstances. After sustaining
    another relevance objection by the prosecutor, the trial court called both
    counsel to sidebar for an unreported conference. As I summarize post, the
    sidebar conference was later put on the record during Zumini’s cross-
    examination. It was at this time that the court ruled evidence of Tony’s
    threats and acts of violence was “not relevant” and would not be admitted.
    When Zumini’s testimony resumed, he testified he got off work at about
    5:00 p.m. on September 6. When he got home, Zumini was told by his
    neighbor that she had seen Tony’s car parked on their street “that same day,
    early in the morning” between 1:00 and 3:00 a.m. That news “elevated”
    Zumini’s fear, and it led him to go to Tony’s later that evening. Zumini
    carried deadly weapons in his car on September 6 because he was afraid he,
    Assaad, and baby A. would be “seriously hurt” by Tony. He felt that fear
    when he got out of the car at Tony’s on the night of the shooting. He was
    afraid of a “knife attack or a shooting” by Tony when he saw Tony advancing
    toward him from seven to nine feet away. He believed a knife attack would
    leave him “probably . . . dead or seriously hurt,” and that this would happen
    “instant[ly]” or “[r]eal fast.” He testified that he fired the gun “based on that
    fear.”
    C.       Cross Examination of Zumini
    Before I summarize the prosecutor’s cross examination, I note my
    observation of another procedural irregularity.
    Previously, at the June 25, 2018 hearing, the prosecutor requested the
    trial court allow him to cross-examine Zumini after Zumini “testifie[d] on
    direct as to what happened that day” of the shooting but “before the [c]ourt
    rules on the admissibility” of the specific instances of Tony’s violence. (Italics
    23
    added.) The prosecutor argued: “What if Mr. Zumini testifies on direct, as
    [defense counsel] has indicated that he will, that he went over to the house
    that day with no intention, whatsoever, of shooting his father. [¶] . . . [¶] My
    position is that I should be allowed to have the opportunity to cross-examine
    and ask him [before the court rules on the admissibility of Tony’s acts of
    violence], isn’t it true you told the police that you went over there with the
    specific intent to put some bullet holes in your father that day?” (Italics
    added.)
    The trial court agreed, “Yes. I think that is appropriate. I do.”
    However, the trial court advised the prosecutor (now a third time): “I don’t
    mean to be a fly in the ointment . . . if the theory of the case is that Mr.
    Zumini went over there that day with the intention of killing his father, that
    could possibly open the door to the entire relationship.” (Italics added.)
    Thus, the prosecutor was permitted to cross examine Zumini on his
    mental state at the time of the shooting, before the trial court ruled whether
    Zumini could testify about Tony’s prior threats and acts of violence to explain
    that mental state. But, contrary to the scenario he presented as justification
    for the unusual request, the prosecutor never confronted Zumini with any
    alleged confession of premeditation or intent to kill.
    Under cross-examination, Zumini testified he bought the gun in mid-
    August 2013 “off of the streets,” but not for the purpose of killing his father.
    He paid more than retail for the gun because he wanted the gun
    “immediate[ly],” not because it would be untraceable. He did not choose the
    handgun for any of its features, but because it was “the gun that was
    available at the time.” The hollow point bullets “came with the gun”; he did
    not request them and did not learn until after his arrest that hollow point
    24
    bullets inflict greater damage. Zumini testified he did not have any
    knowledge of guns, had never fired a gun and had not practiced using a gun.
    After his neighbor told him she saw Tony “parked outside of her house”
    in the early morning hours of September 6, Zumini called Lizotte around
    6:30 p.m. to tell Lizotte he was coming over. He left for Tony’s place around
    9:30 p.m. and went there “looking for him to talk to him.” “[He] wanted to
    show [Tony] [he] was capable of showing up to his house with a gun.” The
    prosecutor asked Zumini if he was “going to essentially threaten to kill [Tony]
    at that time” with the gun. Zumini testified he intended to “display” the gun
    to Tony, not shoot him. Indeed, Zumini had shown that gun to Tony before.
    (On redirect, Zumini explained he had shown Tony the gun on August 23 or
    24, 2013 when Tony came onto his street in order to demonstrate to Tony
    that he was armed to protect himself.)
    The prosecutor questioned why Zumini did not unload the gun or why
    he took “a second clip full of hollow point bullets” if his intention was only to
    show the gun, not shoot Tony. Zumini responded that Tony was
    “unpredictable” and “[i]t could possibly get out of hand.” He agreed the gun
    was on the rear passenger floorboard and the second clip was in the door
    “map pocket” for quick access.
    Zumini agreed he made the decision to stop the car and get out with
    the gun after Lizotte hit the window. When Zumini got out of the car, Tony
    did not say anything to him and he did not see any weapons in Tony’s hands.
    Zumini agreed he made a decision in “[t]he initial shot” to shoot Tony, but
    after that, he “wasn’t making decisions” but “was just doing.” He fired two
    shots from the driveway, a third shot as he chased Tony down the breezeway,
    and that’s when Tony started to go to the ground. Zumini testified “[i]t
    happened real quick” and he “was moving real fast.”
    25
    When Tony “went to the ground,” “[h]is upper body was still up and his
    head was up. He wasn’t down.” Zumini testified, “I knew he was shot. I
    didn’t know that he was disabled.” The prosecutor asked, “So if you fire six
    rounds into someone’s back, pretty good chance that the person is gonna die;
    right?” Zumini responded, “Someone. Not my dad.” Zumini denied he was
    “standing right over [his] father shooting him in the back.”
    Zumini agreed that before he fired the third shot, he was trying “to kill”
    “disable” or “stop” Tony at that time. He testified: “After the first shot I was
    just going. . . . [¶] When [Tony] came forward I assessed, by the body
    language, the quietness, that there was gonna be no talking. And usually
    that means reaching for the knife or grabbing the knife. Once I assessed that
    for like a split second, I [just] went. I was just going. To whether it was to
    kill or to disable, I can’t even explain myself to this day because I was just
    going. [¶] . . . [¶] I wasn’t making decisions. I was just doing.”
    After the shooting, Zumini drove from San Jose to Fremont and hid the
    gun and the magazines in two different storm drains. He testified he hid the
    evidence because he “panicked.” At a different location, he got rid of his
    clothes in a dumpster and changed into a pair of sweatpants and hooded
    sweatshirt he usually kept in his car.
    At a break in cross-examination, the trial court put on the record the
    earlier unreported sidebar conference in which it ruled evidence of Tony’s
    prior threats and acts of violence against Zumini was “not relevant” and
    would not be admitted. The court explained: “That the prior history at this
    time, given the lack of provocation, the bereft nature of the record with
    respect to the decedent’s provocation on the date in question, makes the issue
    of their prior history not relevant.” The trial court also ruled that Ferry
    would be permitted to offer the opinion that “Zumini suffers from PTSD, and
    26
    that could have altered how he viewed the situation or the threat that he
    believed was present on the date of the incident, September 6th,” but he was
    prohibited from testifying to “the entire history of the relationship” between
    Zumini and Tony. The court likened the permissible scope of Ferry’s
    testimony to that of a child sexual abuse accommodation syndrome expert.
    Based on the trial court’s rulings, the defense elected not to call Ferry.
    It explained his testimony would be “vitiated” if the jury was not permitted to
    hear the basis of his opinions and, with Ferry’s testimony “lessened,” the
    defense also did not want to end its case with a potential “battle of the
    experts.” The defense also opted not to call nine character witnesses who
    would have testified to Zumini’s character for honesty and peacefulness.
    Defense counsel explained that the prosecutor intended to cross examine
    them about specific instances of Zumini’s violent acts, and without the ability
    to contextualize Zumini’s acts within the overarching conflict with his father,
    defense counsel would be unable to respond. Thus, the defense rested its case
    with Zumini as its only witness.
    II.
    The Trial Court Repeatedly Erred in Its in Limine Rulings
    The trial court made a series of errors in ruling on the parties’ motions
    in limine, the effect of which was then profoundly felt during all stages of the
    defense presentation at trial. I identify the errors as they occurred.
    First and foremost, the trial court persistently ignored the defense’s
    central theory of admissibility of its evidence of Tony’s threats and acts of
    violence. The defense specifically, and repeatedly, stated that it would rely
    on its evidence to raise a reasonable doubt whether Zumini killed deliberately
    and with premeditation. The defense evidence was plainly relevant and
    admissible for this purpose. I discuss this in more detail below.
    27
    Second, the trial court erred when it persuaded the prosecution to
    withdraw its 1101(b) motion on the ground this would eliminate a theory of
    admissibility otherwise available to the defense. The court’s rationale
    strongly suggested it was not acting as a neutral decisionmaker, and its
    reasoning was incorrect. By withdrawing its motion, the prosecution
    eliminated certain facts from its case, but it continued to assert the fact that
    Zumini had a gun with him when he drove to Tony’s house showed he was
    planning to shoot Tony. This was the very inference of premeditation the
    defense said it was seeking to rebut. Thus, the withdrawal of the
    prosecution’s motion did not close a door or render the defense evidence
    irrelevant. (See People v. Marsh (1962) 
    58 Cal.2d 732
    , 736 (Marsh) [“It is
    elementary that if the prosecution can introduce evidence of a required
    specific intent, the defendant must be given the equal privilege of showing
    the lack of such intent.”].)
    Third, the trial court erred when it adopted the prosecution’s position
    that the defense evidence of Tony’s so-called “prior bad acts” was character
    evidence offered to show Tony’s propensity for violence, and that to be
    admissible for this purpose, the defense would first have to establish a prima
    facie case of a “ ‘self-defense-type theory.’ ” This ruling was erroneous, and its
    effect on the defense case was particularly devastating.
    To begin with, the defense evidence of Tony’s threats and acts of
    violence was not inadmissible character evidence. Section 1101, subdivision
    (a), “prohibits admission of evidence of a person’s character, including
    evidence of character in the form of specific instances of uncharged
    misconduct, to prove the conduct of that person on a specified occasion.
    Subdivision (b) of section 1101 clarifies, however, that this rule does not
    prohibit admission of evidence of uncharged misconduct when such evidence
    28
    is relevant to establish some fact other than the person’s character or
    disposition” (People v. Ewoldt (1994) 
    7 Cal.4th 380
    , 393), “such as motive,
    opportunity, intent, preparation, [or] plan” (§ 1101, subd. (b), italics added), or
    the lack thereof. Subdivision (c) of section 1101 further provides this rule
    also does not “affect[ ] the admissibility of evidence offered to support or
    attack the credibility of a witness.” Finally, section 1103, subdivision (a),
    carves out yet another exception to this rule: evidence of the victim’s
    character is not inadmissible when “[o]ffered by the defendant to prove
    conduct of the victim in conformity with [that] character.”
    Here, the defense specified many times that it was relying on its
    evidence to prove Zumini’s state of mind, not Tony’s bad character or
    intentions. (See Minifie, 
    supra,
     13 Cal.4th at p. 1067 [evidence “ ‘offered to
    explain [defendant’s] state of mind, rather than to prove [the victim’s] actual
    intentions’ ” is not character evidence]; see People v. Davis (1965) 
    63 Cal.2d 648
    , 656 (Davis) [defendant sought to present evidence of deceased’s knife
    attacks “which defendant had witnessed or which had been reported to him,”
    and “was not attempting to prove deceased’s character” but “to prove his own
    frame of mind”].) The defense evidence was therefore admissible under
    section 1101, subdivision (b) to prove Zumini’s lack of intent, preparation or
    planning, and under section 1101, subdivision (c), to support the credibility of
    Zumini’s testimony about such facts. And although it was not offered as
    evidence of Tony’s propensity for violence, section 1103 would not have
    barred the defense from presenting its evidence even for that purpose.
    29
    Moreover, contrary to the prosecutor’s arguments, Gutierrez and Hoyos,
    on which the prosecution relied, were not controlling. 6 In both Gutierrez and
    Hoyos, the victim’s prior conduct did not involve the defendant and was not
    alleged to have been known to the defendant. (See Gutierrez, 
    supra,
     45
    Cal.4th at pp. 827–828 [victim’s prior misdemeanor battery conviction, “an
    event entirely unrelated to defendant,” offered to show the defendant “was
    engaged in mutual combat with the victim”]; Hoyos, 
    supra,
     41 Cal.4th at
    pp. 912–913 [evidence of victim’s propensity for violence and use of firearms
    was based on statements a third-party witness made to police that the victim
    has such a propensity and “might have been going for a gun” at the time of
    the homicide].) In both Gutierrez and Hoyos, the defense argued the evidence
    would prove the victim had a violent character and was acting in conformity
    with that character during the struggle that resulted in her death.
    (Gutierrez, at pp. 827–828; Hoyos, at pp. 912–913.) Here, unlike Gutierrez
    and Hoyos, the victim’s prior threats and acts of violence had been personally
    directed at the defendant, and the evidence was not offered to prove the
    victim acted in conformity with his prior conduct. For these reasons,
    Gutierrez and Hoyos were inapposite. (People v. Thomas (2021) 
    64 Cal.App.5th 924
    , 945, fn. 6 [“ ‘Cases are not authority for propositions not
    considered.’ ”].)
    6     The prosecutor also relied on People v. Soules (1940) 
    41 Cal.App.2d 298
    .
    In Soules, unlike this case, the victim “had made no previous threats or
    demonstrations against the defendant.” (Id. at p. 304.) Also, the Soules court
    relied, in part, on the strength of the prosecution’s case in deciding the
    defense evidence of the victim’s specific acts of violence was properly
    excluded. (Id. at pp. 310–311.) As Zumini points out in his opening brief on
    appeal, this mode of analysis was held unconstitutional in Holmes v. South
    Carolina (2006) 
    547 U.S. 319
    , 330–331 (Holmes). In their responsive brief,
    the People do not rely on Soules.
    30
    Further, neither Gutierrez nor Hoyos stood for the remarkable
    proposition the trial court drew from them: that the court could not rule on
    the relevance and admissibility of Tony’s threats and acts of violence until
    the defense first presented trial evidence sufficient to establish a prima facie
    case of self-defense or provocation. The court’s view that it was required to
    adopt this “backwards” approach seems to have resulted from its mistaken
    belief that the retrospective reasoning employed by the California Supreme
    Court when it reviews a judgment could or should be put into practice
    prospectively by a trial court.7
    Fourth, having decided the defense would have to present evidence of a
    “prima facie case” of self-defense or provocation before it would be allowed to
    present evidence of Tony’s threats and acts of violence, the trial court added
    another restriction: it ruled the prima facie case would have to be
    established based on events from the day of the homicide. This temporal
    limitation appears to have arisen from the court’s belief that a defendant
    cannot claim to have killed under provocation if there was a cooling-off period
    of more than one day. The court was incorrect on this point as well. The rule
    is that provocation may occur over a “considerable period of time.” (People v.
    Wharton (1991) 
    53 Cal.3d 522
    , 571 (Wharton) [provocation occurred over a
    period of weeks during which the defendant and his girlfriend had been
    arguing, culminating in an incident in which she threw a book at him and he,
    in a rage, hit her head with a hammer].) Further, the “provocatory course of
    7      When the trial court receives an objection to the admissibility of
    evidence, the usual practice is to rule based on offers of proof. (See, e.g.,
    People v. Schmies (1996) 
    44 Cal.App.4th 38
    , 53 [explaining the offer of proof
    procedure].) A trial court can also admit evidence conditionally, subject to
    later evidence establishing any missing foundational facts. (§ 403, subd. (b);
    see People v. Simon (1986) 
    184 Cal.App.3d 125
    , 130–131.)
    31
    conduct theory of heat of passion/provocation” does not always “require[ ] the
    existence of some instigative final act, however trivial, before it is worthy of
    consideration by the jury.” (People v. Wright (2015) 
    242 Cal.App.4th 1461
    ,
    1489 (Wright).) The adequacy of an alleged cooling-off period is also a
    question of fact for the jury. (Id. at p. 1490.)
    The court then added to the scope of its restrictions by subjecting the
    defendant’s own testimony to this prima facie case requirement, telling
    defense counsel, “if your client decides to testify, . . . you will need to start
    with the circumstances as to what happened that day and work backwards.”
    No authority cited by the prosecution supported the trial court in imposing
    this degree of control over the defendant’s testimony.
    The trial court then raised the bar even higher when it granted the
    prosecutor’s request—a request for which the prosecutor offered no
    supporting authority—and ruled that he would be permitted to cross examine
    Zumini on his mental state at the time of the shooting, out of order, before
    the court ruled on the admissibility of the remainder of Zumini’s testimony as
    to the very events that led to his mental state.
    Fifth, once the trial court determined that Ferry would be permitted to
    testify that Zumini suffered from complex PTSD and generalized anxiety
    disorder at the time of the offense, it should have allowed Ferry to testify
    about Tony’s history of abuse and violence to the extent he relied on that
    history for his opinions. “Since an expert’s opinion ‘ “is no better than the
    facts on which it is based” ’ [citation], experts should generally be allowed to
    testify to all facts upon which they base their opinions [citation].” (People v.
    Bordelon (2008) 
    162 Cal.App.4th 1311
    , 1324–1325; see Cortes, supra, 192
    Cal.App.4th at p. 910 [trial court erroneously precluded defense psychiatric
    expert from testifying about “defendant’s upbringing and traumatic
    32
    experiences . . . , inasmuch as defendant’s prior traumatic experiences
    informed [the expert’s] opinion, and explained the connection between
    defendant’s diagnoses, his mental state and his behavior”].) The defense
    should also have been permitted to present direct evidence of the
    foundational facts relied on by Ferry through its fact witnesses. (See People
    v. Sanchez (2016) 
    63 Cal.4th 665
    , 676 (Sanchez).)
    Sixth, by holding in abeyance the defense eve-of-trial objection to
    imposing arbitrary restrictions on Zumini’s own testimony, the trial court lost
    an opportunity to correct its misguided course and avoid constitutional error.
    The cumulative effect of the court’s erroneous in limine rulings crippled the
    defense presentation at trial. Defense counsel was relegated to giving an
    opening statement that presented a narrative account of Zumini’s thoughts
    and feelings, as though they existed in the abstract, untethered to any real-
    world events. When the court overruled the defense objection to the arbitrary
    constraints on Zumini’s testimony, defense counsel had to reorder his direct
    examination and question Zumini “backwards,” beginning with the day of the
    homicide. Zumini, restricted from testifying about the things Tony had done
    to him, could only offer bare assertions about his mental state, and was
    unable to explain why he decided to confront Tony, what the confrontation
    was about, why he was armed if he was not intending to shoot Tony, why he
    was so scared of a knife assault from Tony, or why he perceived Tony’s
    behavior as he did.
    Seventh, although the trial court claimed it would allow Zumini to
    testify about Tony’s threats and acts of violence once it heard testimony
    substantiating a prima facie claim of self-defense or provocation, it seemed to
    ignore testimony given for this very purpose. Each time the trial court
    identified what it believed were deficiencies in Zumini’s testimony, defense
    33
    counsel elicited testimony that overcame them. By the time Zumini finished
    testifying, it was apparent the defense had, in fact, substantiated “a prima
    facie case” of provocation, as well as self-defense. And yet the trial court
    ruled otherwise and excluded the defense evidence altogether.
    The trial court ruled the evidence of Tony’s threats and acts of violence
    irrelevant to prove provocation out of two concerns, both misguided. First, it
    reasoned that any provocation had to occur on the day of the homicide. As
    discussed above, this was incorrect. (Wharton, supra, 53 Cal.3d at p. 571
    [provocation can occur over a “considerable period of time”]; Wright, supra,
    242 Cal.App.4th at p. 1490 [adequacy of cooling-off period is an issue for the
    jury].) Second, it determined that Tony’s behavior on the day of the homicide
    was not provocative. The defense argued that Zumini knew Tony to always
    carry a knife, and that Tony’s act of advancing on him⎯with body language
    and facial expression Zumini understood to mean an assault was
    imminent⎯sent Zumini into a state of uncontrolled fear. Zumini’s own
    testimony that he subjectively feared Tony in that moment was sufficient to
    substantiate a claim of subjective provocation reducing the degree of murder.
    Whether this behavior was objectively provocative, so as to support a theory
    of heat-of-passion voluntary manslaughter, was an issue the jury should have
    been permitted to decide. It should also have been allowed to decide this
    issue with the benefit of the evidence of Tony’s prior threats and acts of
    violence so it could understand why Zumini perceived Tony as he did.
    In sum, the trial court missed every opportunity to recognize the
    relevance of the evidence of Tony’s threats and acts of violence. The evidence
    was relevant to every theory identified by the defense. It was relevant to
    negate the prosecution’s theory of a premeditated murder, and thereby create
    a reasonable doubt in the minds of jurors whether Zumini acted with the
    34
    mens rea required for first degree murder. I write further about this issue
    because it is critical that the trial court understand that this theory of
    admissibility was available to the defense. The evidence was also relevant to
    support Zumini’s claims of provocation and self-defense. I agree with the
    majority on this point but write further to explain my concerns with the
    majority’s analysis of the errors in the court’s rulings on self-defense.
    III.
    The Defense Evidence Was Relevant and Admissible to Raise a Reasonable
    Doubt Whether Zumini Killed Deliberately and with Premeditation
    The majority opinion concludes the defense evidence was relevant to
    Zumini’s claim he did not commit the shooting with the mens rea required for
    first degree murder, and it was error for the trial court to exclude it. (Maj.
    opn., p. 14.) I agree. The majority opinion, however, dispatches with the
    issue in merely two sentences, and devotes very little attention to analyzing
    the error. (Maj. opn., p. 14 [the defense evidence “was material to his claim
    that he did not commit the shooting with the mens rea required for first
    degree murder”] and p. 23 [“[s]uch evidence was also relevant because it was
    material to whether Zumini acted without malice, premeditation, or
    deliberation”].) It was the defense’s central theory of admissibility that its
    evidence was relevant to raise a reasonable doubt whether Zumini killed
    deliberately and with premeditation. The trial court’s repeated failure to
    recognize the viability of this basic defense theory was, in my view, its core
    error.
    The prosecution has the burden of proving beyond a reasonable doubt
    that a killing was the result of premeditation and deliberation, and is
    therefore murder of the first degree. (People v. Anderson (1968) 
    70 Cal.2d 15
    ,
    25 (Anderson).) Proof of a specific intent to kill alone does not establish first
    35
    degree murder. (Id. at p. 26 [“[T]he legislative classification of murder into
    two degrees would be meaningless if ‘deliberation’ and ‘premeditation’ were
    construed as requiring no more reflection than may be involved in the mere
    formation of a specific intent to kill.”]; accord People v. Thomas (1945) 
    25 Cal.2d 880
    , 898.) The “brutality of a killing cannot [also] in itself support a
    finding that the killer acted with premeditation and deliberation.”
    (Anderson, at pp. 24−25.) Rather, the prosecution must prove the intent to
    kill was “ ‘the result of deliberate premeditation . . . formed upon a pre-
    existing reflection, and not upon a sudden heat of passion sufficient to
    preclude the idea of deliberation.’ ” (Thomas, at p. 900.) A killing that is “the
    result of mere unconsidered or rash impulse hastily executed” is not murder
    of the first degree. (Id. at pp. 900–901.)
    When, as in this case, a defendant stands accused of first degree
    murder for a killing he does not dispute having committed, he may attempt to
    reduce the murder from first degree to second degree by raising a reasonable
    doubt that the killing was willful, premeditated, and deliberated. (People v.
    Gonzalez (1990) 
    51 Cal.3d 1179
    , 1214–1215 (Gonzalez).) The right of the
    accused to hold the prosecution to its burden of proving his guilt beyond a
    reasonable doubt is a cornerstone of our criminal justice system. (In re
    Winship (1970) 
    397 U.S. 358
    , 364 [“ ‘Due process commands that no man
    shall lose his liberty unless the Government has borne the burden of . . .
    convincing the factfinder of his guilt.’ ”].) Thus, a criminal defendant is
    entitled as a matter of due process to hold the prosecution to its burden of
    proof by presenting otherwise competent evidence that “ ‘raises’ or permits a
    reasonable doubt that he is guilty as charged.” (Gonzalez, at p. 1215.) This
    well-settled constitutional principle “applies to the whole and every material
    part of [a homicide] case, no matter whether it is as to the act of killing, or
    36
    the reason for or manner of its commission.” (People v. Bushton (1889) 
    80 Cal. 160
    , 164.)
    Here, the prosecution sought to prove Zumini committed murder of the
    first degree. From the inception of its case, the prosecution claimed Zumini
    had formed the intent “to shoot and kill his father two months before
    murdering him.” It pointed to the fact that Zumini brought a gun with him
    when he drove to Tony’s place on the night of the homicide as evidence he
    was planning to kill Tony. The prosecutor then explicitly argued that the
    jury should draw this inference, but even if the prosecutor had not, the jury
    could have drawn this inference on its own. (Anderson, supra, 70 Cal.2d at
    pp. 26–27 [evidence of planning activity may support the finding that a
    murder was deliberate and premeditated].) And the defendant would be
    entitled to respond to that inference of premeditation.
    The defense conceded Zumini shot and killed his father, and disputed
    only whether Zumini killed deliberately and with premeditation. The defense
    specifically stated Zumini would testify “he did not go to Tony’s house with
    the intention of shooting him,” but rather to “confront” Tony about his prior
    threats and acts of violence against him and his family, and he brought a gun
    “to show he could defend himself and wasn’t afraid.” Throughout the
    proceedings, the defense explained its evidence was being offered to rebut the
    inference of premeditation that would otherwise arise from the fact Zumini
    had a gun with him when he drove to Tony’s house on the night of the
    homicide.
    Unquestionably, the defense had a right to present its evidence for this
    purpose. “[I]t is fundamental that at the trial upon a not guilty plea
    evidence, competent in character, which tends to show that a defendant, at
    the time he committed the overt act, either possessed or did not possess the
    37
    specific essential mental state (as of malice aforethought, deliberate intent,
    etc.) is admissible.” (People v. Wells (1949) 
    33 Cal.2d 330
    , 347.) Therefore, “a
    defendant may present evidence to show that he or she lacked the mental
    state required to commit the charged crime.” (People v. Hernandez (2000) 
    22 Cal.4th 512
    , 520; see People v. Humphrey (1996) 
    13 Cal.4th 1073
    , 1083–1089
    (Humphrey); People v. Sotelo-Urena (2016) 
    4 Cal.App.5th 732
    , 744–756;
    Cortes, supra, 192 Cal.App.4th at p. 908.)
    Once the prosecution presents evidence in support of the charged
    crime, the defendant has the fundamental right to present evidence to
    dispute the accuracy of the prosecution’s claims. This right exists whether or
    not the defense evidence happens to support a particular recognized defense.
    “[W]hen there is placed upon an accused the burden of interjecting a factual
    contention which, if established would tend to overcome or negate proof of
    any element of the crime charged as otherwise established by the People, the
    accused need only raise a reasonable doubt as to the existence or nonexistence
    of the fact in issue.” (People v. Tewksbury (1976) 
    15 Cal.3d 953
    , 963, italics
    added.) When the defendant presents evidence of a factual theory that tends
    to negate the elements of the offense, he “has no burden of proof or
    persuasion, even as to his defenses.” (Gonzalez, supra, 51 Cal.3d at pp. 1214–
    1215.)
    Evidence is relevant if it tends to prove or disprove a disputed fact “of
    consequence to the determination of the action,” or if it is relevant to a
    witness’s credibility. (§ 210.) Here, Zumini’s mental state at the time he
    drove to Tony’s, and whether that mental state was one of premeditation, was
    at issue. Indeed, this trial was only about Zumini’s mental state. Thus, the
    trial court, in determining whether the defense evidence was relevant,
    needed to consider only whether the evidence tended to disprove the
    38
    inference of premeditation that arose from Zumini’s act of bringing a gun
    with him to the location of the homicide.
    Plainly, it did. The escalating series of physical attacks and threats
    Tony committed against Zumini and his loved ones in the year and months
    leading up to the homicide tended to explain why Zumini bought a gun and
    why he had outfitted his car with weapons. This evidence also tended to
    explain and corroborate Zumini’s claim that despite the gun, his actual intent
    when he drove to Tony’s was to confront Tony, not shoot him. At the same
    time, evidence of Zumini’s history with Tony, and his longing for a
    relationship despite Tony’s repeated abuse, tended to support Zumini’s
    assertion that his actual reason for driving to Tony’s with a gun was to
    confront and intimidate Tony, and convince him to back down, rather than to
    kill him.
    The defense evidence, and the purpose for which it was offered, was
    strikingly similar to evidence that our high court held was erroneously
    excluded in People v. Lee Chuck (1887) 
    74 Cal. 30
    , 34–35 (Lee Chuck)
    (discussed in Minifie, 
    supra,
     13 Cal.4th at pp. 1066–1067.) Lee Chuck was
    convicted of murder after shooting Yin Yuen. (Lee Chuck, at p. 30.) “It
    appeared from the evidence of the prosecution that, at the time of the
    homicide, Lee Chuck was encased in a steel coat-of-mail, and was armed with
    four pistols.” (Id. at p. 34.) This evidence was “intended to have, and
    doubtless did have, great weight in convincing the jury that Lee Chuck had
    prepared himself for the deadly encounter in which Yin Yuen lost his life. To
    explain this fact, and to show that the defendant had reason to think his life
    in danger, and for that reason, and not to prepare himself to make a
    murderous assault upon the deceased, defendant put on a coat-of-mail and
    armed himself, the defense offered to show that the Bo Sin Sear Society and
    39
    another organization, of which Yin Yuen was a member, had threatened to
    take the life of defendant, and that defendant had been informed of the fact.
    This evidence was objected to as incompetent, and the objection was
    sustained.” (Ibid.)
    The California Supreme Court reversed: “This ruling cannot be
    maintained. The fact of the extraordinary armor worn by the defendant at
    the time of the homicide was important evidence for the prosecution. To
    refuse to permit the defendant to show that the preparation was for a different
    purpose, and for reasons which implied no intent to assault the deceased, was
    a denial of a most essential right.” (Lee Chuck, supra, 74 Cal. at p. 35, italics
    added.)
    Here, as in Lee Chuck, evidence of Tony’s threats and acts of violence
    tended to explain Zumini’s defensive reasons for arming himself and to refute
    the prosecution’s claim that Zumini was planning on murdering Tony. The
    defense was nevertheless precluded from showing that it was in response to
    Tony’s relentless aggressions that Zumini outfitted his car with weapons,
    that he had acquired the gun after learning of Tony’s death threats, and that
    his actual plan on the night of the homicide was to intimidate Tony with his
    own show of strength, because he believed this was the only way to convince
    Tony to put an end to the ongoing hostilities. As in Lee Chuck, precluding
    Zumini from presenting this evidence “was a denial of a most essential right.”
    (Lee Chuck, supra, 74 Cal. at p. 35.)
    Moreover, as numerous authorities establish, the defendant’s right to
    present a defense is not limited to merely asserting on the witness stand that
    he did not act with the mental state claimed by the prosecution. He also has
    the right to persuade the jury of the credibility of his account by testifying to
    facts that allow him to explain himself, so the jury can make sense of his
    40
    testimony and understand his claims about his less culpable mental state, as
    well as to present competent, reliable evidence from other sources tending to
    corroborate his version of events. (Crane v. Kentucky (1986) 
    476 U.S. 683
    ,
    688–690 (Crane) [“[S]tripped of the power to describe to the jury the
    circumstances that prompted his confession, the defendant is effectively
    disabled from answering the one question every rational juror needs
    answered: If the defendant is innocent, why did he previously admit his
    guilt?”]; Davis, supra, 63 Cal.2d at p. 657 [“Defendant was entitled to bolster
    his claims by corroborating testimony in his attempt to influence the jurors to
    a more favorable finding.”]; Minifie, 
    supra,
     13 Cal.4th at p. 1066 [“A
    defendant who testifies that he acted from fear of a clan united against him is
    entitled to corroborate that testimony with evidence ‘tend[ing] in reason to
    prove’ that the fear was reasonable.”]; Humphrey, 
    supra,
     13 Cal.4th at
    p. 1083 [“ ‘[A] defendant is entitled to have a jury take into consideration all
    the elements in the case which might be expected to operate on his mind[.]’ ”];
    accord People v. Smith (1907) 
    151 Cal. 619
    , 628; § 210 [“ ‘[r]elevant evidence’ ”
    includes “evidence relevant to the credibility of a witness”].)
    In sum, the trial court failed to perceive that the defense evidence was
    relevant and admissible for the simple but fundamental reason that it tended
    to create a reasonable doubt whether Zumini acted with the mental state
    required for first degree murder. It appears to me that the majority opinion
    has overlooked this as well. In explaining the general legal principles, the
    majority opinion states only that “[p]remeditation and deliberation may be
    negated by heat of passion arising from provocation.” (Maj. opn., p. 15.) It
    leaves out entirely any discussion of the prosecution’s burden to prove beyond
    a reasonable doubt every element of the crime charged. And there is no
    acknowledgment of the defendant’s fundamental right to present competent
    41
    evidence to raise a reasonable doubt that he is guilty as charged. (Gonzalez,
    supra, 51 Cal.3d at pp. 1214–1215.) The risk of not providing the trial court
    with a full analysis of this critical error is that it may be repeated.
    IV.
    The Defense Evidence Was Relevant and Admissible to Support Self-Defense
    I agree with the majority’s conclusion the defense evidence was
    relevant and admissible to support Zumini’s self-defense claims. (Maj. opn.,
    pp. 22–23.) The trial court plainly erred in excluding the evidence and, in my
    view, compounded that error with the numerous unjustified procedural
    conditions it imposed on the defense. (See section II, ante [requiring the
    defense to establish a “prima facie case” of self-defense or provocation before
    ruling on admissibility of the evidence and requiring the defendant to testify
    “backwards” under strict temporal limitations].) I part with the majority
    opinion, however, in its reasoning as to how the error occurred.
    Rather than simply explain why the excluded evidence had a tendency
    in reason to prove that Zumini acted in perfect or imperfect self-defense, the
    majority opinion focuses first, and primarily, on the trial court’s decision to
    give self-defense instructions. (Maj. opn., pp. 13–14, 19, 20.) And it does so
    in such a way as to strongly suggest that, for the majority, the trial court’s
    true error was in the giving of self-defense instructions, not the exclusion of
    the evidence in the first instance. This analysis is untenable.
    According to the majority opinion, the trial court “elected” to give self-
    defense instructions despite concluding that Zumini’s “own testimony
    established that he did not fear imminent death or great bodily injury when
    he committed the shooting” (maj. opn., pp. 18, 20) and that there was,
    therefore, “not a scintilla of evidence to show Zumini had acted in self-
    42
    defense” (maj. opn., p. 19).8 The majority opinion reasons that “by
    instructing the jury on self-defense, the [trial] court impliedly found that
    there was substantial evidence in the record to support Zumini’s self-defense
    claims” (maj. opn., p. 19, italics added), and “[s]uch [a] ruling is plainly
    inconsistent with the court’s earlier evidentiary ruling, [that] . . . there was
    not a scintilla of evidence to show Zumini had acted in self-defense” (maj.
    opn., p. 19). The majority opinion then concludes: “Once the [trial] court
    elected to instruct the jury on self-defense, the explicit terms of the self-
    defense instructions made Tony’s prior threatening behavior relevant, and
    thus such evidence should have been admitted.” (Maj. opn., p. 14, italics
    added.) “It was therefore an abuse of discretion for the court to instruct the
    jury to consider Tony’s prior threats, while at the same time excluding
    evidence of the prior threats as irrelevant.” (Maj. opn., p. 21, italics added.)
    This is illogical.
    To be clear, a trial court’s decision to give an instruction may
    illuminate and reveal the prejudice that flows from erroneously excluding
    evidence relevant to that instruction. But it cannot create the evidentiary
    error, as the majority opinion seems to suggest. For example, in Marsh,
    8      The majority opinion states that the trial court found there was not a
    “scintilla of evidence to show Zumini had acted in self-defense.” (Maj. opn.,
    p. 19.) The majority opinion’s assertion that the court made such a finding
    appears to be based on a comment the court made during a break in Zumini’s
    direct examination testimony. It stated: “[T]he [c]ourt has a sua sponte duty
    to give self-defense, frankly, if even a scintilla of evidence is present with
    respect to a self-defense theory.” (Italics added.) The court was merely
    conveying its understanding (although incorrect) of the standard governing
    its duty to instruct on self-defense; it was not making a finding about the
    overall quantum of proof of self-defense generated by Zumini’s testimony.
    Indeed, Zumini had not finished testifying when the court made this
    comment.
    43
    supra, 58 Cal.2d at pages 735, 736−737, the defendants were charged with
    theft crimes in the form of obtaining money by false representations based on
    their sale of medical devices that delivered no actual medical benefit. The
    California Supreme Court reviewed the trial court’s decision to exclude on
    hearsay grounds documents the defendants claimed they had relied on to
    form their belief that the medical devices actually worked to disprove any
    specific intent to defraud. (Id. at pp. 736−737.) The Court first concluded the
    trial court erred in excluding the documents on the grounds their contents
    were hearsay, because the documents were not offered for a hearsay purpose.
    (Id. at p. 740.) Then, the Court analyzed the prejudice that flowed from the
    erroneous exclusion of the evidence, stating that: “This error was emphasized
    because the instructions given by the trial court correctly told the jury that
    defendants’ defense was a good faith belief in the curative powers of the
    machines, but the rulings on the admissibility of evidence prevented the
    introduction of the very evidence defendants relied on to support their
    contention of good faith belief.” (Ibid., italics added.)
    Here, the majority opinion does something quite different. Rather than
    analyze the trial court’s ruling on the relevance and admissibility of the
    defense evidence first, as our high court did in Marsh, the majority opinion
    flips the analysis and focuses first on the trial court’s decision to instruct the
    jury on self-defense. In doing so, the majority opinion suggests the evidence
    was relevant “[o]nce” the trial court “elected” to instruct the jury on self-
    defense, and that it was “the explicit terms of [those] instructions [that] made
    Tony’s prior threatening behavior relevant.” (Maj. opn., pp. 14, 20.) I
    disagree. As in Marsh, the trial court’s subsequent decision to give the self-
    defense instructions only “emphasized” its obvious error in excluding the
    44
    evidence as irrelevant in the first instance. (Marsh, supra, 58 Cal. 2d at
    p. 740.)
    The majority opinion’s reasoning is troubling for another reason. It
    seems to suggest it agrees with the People’s argument on appeal that there
    was no evidentiary error because “the trial court erred in instructing the jury
    on [perfect or imperfect self-defense] theories.” The majority opinion’s
    repeated use of the words “electing,” “elected” and “election” when referring
    to the trial court’s instruction decision (maj. opn., pp. 13, 14, 19, 20) conveys
    its view that, on this record, the trial court’s decision to instruct on self-
    defense was discretionary. Not so.
    To the contrary, “a trial court errs if it fails to instruct, sua sponte, on
    all theories of a lesser included offense which find substantial support in the
    evidence.” (People v. Breverman (1998) 
    19 Cal.4th 142
    , 162.) A review of this
    record reveals the trial court repeatedly ignored evidence favorable to the
    defense, and that there was, in fact, substantial evidence to support giving
    these instructions. “ ‘Substantial evidence’ in this context is ‘ “evidence from
    which a jury composed of reasonable [persons] could . . . conclude[ ]” ’ that the
    lesser offense, but not the greater, was committed.” (Ibid.) “In deciding
    whether there is substantial evidence of a lesser offense, courts should not
    evaluate the credibility of witnesses, a task for the jury.” (Ibid.)
    Zumini’s testimony was substantial evidence to support the giving of
    self-defense instructions. “For killing to be in self-defense, the defendant
    must actually and reasonably believe in the need to defend. [Citation.] If the
    belief subjectively exists but is objectively unreasonable, there is ‘imperfect
    self-defense,’ i.e., ‘the defendant is deemed to have acted without malice and
    cannot be convicted of murder,’ but can be convicted of manslaughter.
    [Citation.] To constitute ‘perfect self-defense,’ i.e., to exonerate the person
    45
    completely, the belief must also be objectively reasonable.” (Humphrey,
    supra, 13 Cal.4th at p. 1082.) “Moreover, for either perfect or imperfect self-
    defense, the fear must be of imminent harm.” (Ibid.)
    Here, Zumini testified that he shot Tony in the belief Tony was about to
    attack him “[f]or sure” with a knife, and possibly with a firearm; that he
    continued to shoot because he continued to perceive Tony as a threat; and
    that he did not perceive an end to the danger even as Tony lay on the ground.
    The jury was entitled to consider, based on this testimony, whether Zumini
    acted under an actual belief in the need to defend against imminent harm
    from Tony, and whether his belief was reasonable.
    True, the doctrines of perfect and imperfect self-defense cannot be
    invoked by a defendant who “ ‘through his own wrongful conduct (e.g., the
    initiation of a physical attack or the commission of a felony), . . . has created
    circumstances under which his adversary’s attack or pursuit is legally
    justified.’ (People v. Enraca (2012) 
    53 Cal.4th 735
    , 761.)” (Maj. opn., p. 20;
    see also People v. Vasquez (2006) 
    136 Cal.App.4th 1176
    , 1179–1180 [“[T]he
    defense is available when the victim’s use of force against the defendant is
    unlawful, even when the defendant set in motion the chain of events that led
    the victim to attack the defendant.”].) However, these are questions for the
    jury to decide, and the record evidence on this point was arguably conflicting.
    There was no evidence Zumini initiated a physical attack before Tony
    advanced on him. There was evidence he brandished his gun while yelling at
    Lizotte. To the extent an inference of danger arose from the brandishing,
    there was also evidence supporting a contrary inference, since Zumini
    testified he had displayed the gun to Tony in the past, without pointing it at
    46
    Tony or shooting it.9 On the whole, even on this incomplete factual record,
    there was substantial evidence triggering the trial court’s sua sponte duty to
    instruct the jury on Zumini’s self-defense claims. The majority opinion’s
    implied criticism of the trial court’s “election” to give these instructions is
    therefore unfounded. Moreover, if the instructions were given improvidently,
    then how can they serve as a legitimate basis for finding error in the trial
    court’s decision to exclude evidence otherwise supporting them?
    I also find the majority opinion’s reasoning to obscure the real issue
    that is the crux of this appeal. Its analysis of the relevance of the excluded
    evidence to the self-defense claims dwarfs its analysis of any other issue.
    (See maj. opn., pp. 18–24.) One might reasonably believe, after reading
    nothing more than the majority opinion, that self-defense was the primary
    theory advanced by the defense at trial. It was not. The defense relied
    primarily on the theories that Zumini did not premeditate the murder, and
    that he acted under provocation. By devoting disproportionate attention to
    self-defense, while at the same time quoting, but not questioning, the trial
    court’s criticisms of the evidence to support a self-defense theory, the
    9     The prosecution’s own evidence further countered the inference that
    Zumini presented a danger even as he brandished the gun. Lizotte, the
    prosecution’s witness, testified that, in his view, Zumini was “not a threat”
    and “doesn’t scare anybody[.]” When Lizotte first saw Zumini drive by the
    night of the shooting, he assumed Zumini was there to try to “[p]erhaps
    intimidate, show off.” Lizotte thought Zumini would “just make a bunch of
    noise probably run his mouth and keep driving.” And in response to a juror
    question asking, “If the defendant called earlier in the day and said that he
    was coming over later, why would you think that he would not stop to talk?,”
    Lizotte testified, in part, that he “just didn’t think the kid [Zumini] had it in
    him.”
    47
    majority opinion signals doubt about its own conclusion that there was error,
    or that any error was, in fact, prejudicial.
    The majority opinion goes on to “acknowledge that aspects of Zumini’s
    self-defense and heat of passion claims are not compelling.” (Maj. opn.,
    p. 29.) It does not say what “aspects” of these claims it finds not compelling.
    I find it difficult to make any determination regarding the strength of the
    evidence or the credibility of Zumini’s defense, when an entire category of
    relevant evidence, critical to understanding Zumini’s mental state and
    conduct at the time of the shooting, was eliminated from the case. I am only
    able to conclude that the excluded evidence was indispensable to the jury’s
    ability to evaluate whether Zumini killed his father with the mental state
    required to convict him of first degree murder.
    Ultimately, I am concerned the trial court will draw the wrong message
    from the majority opinion’s illogical analysis, that its true error was in the
    giving of the self-defense instructions and not in the erroneous exclusion of
    the evidence in the first instance. I would be clear: the trial court plainly
    erred in the exclusion of the defense evidence because it was relevant and
    admissible to raise a reasonable doubt as to whether Zumini killed
    deliberately and with premeditation, and to support all of his self-defense and
    provocation claims. And should Zumini testify at the next trial as he did in
    the first, there would again be substantial evidence to trigger the trial court’s
    sua sponte duty to instruct on his self-defense claims.
    V.
    On Remand
    Despite holding that the trial court erred in excluding the defense
    evidence, the majority opinion simultaneously suggests numerous,
    unexplained limitations to be imposed when the case is retried. (See maj.
    48
    opn., pp. 23–24.) We are at this stage because the trial court was unduly and
    arbitrarily restrictive in imposing prophylactic limitations on the defense
    trial presentation. I find the limitations articulated in the majority opinion
    to be unjustified, and I am concerned they will lead to error at the next trial.
    First, I am troubled by the majority opinion’s word choice when
    referring to the excluded defense evidence. The defense proffer described
    physical assaults and other acts of violence by Tony, in addition to threats
    and other harmful communications. The first half of the majority opinion
    labels the defense evidence as evidence of Tony’s “threats and violence” (maj.
    opn., p. 1), Tony’s “prior threats” (id., p. 2), “Tony’s violent past” (id. at p. 7),
    “Tony’s abusive conduct” (ibid.), “Tony’s prior bad acts” (id. at p. 8), the
    “family history” evidence (id. at pp. 9, 11), and so on. I believe, despite the
    variation in word choice, that these are all references to the same scope of
    evidence of Tony’s threats and acts of violence that was proffered by the
    defense. But when discussing the trial court’s errors in excluding the defense
    evidence, the majority opinion consistently refers to the erroneously excluded
    evidence only as Tony’s “prior threats” (maj. opn., pp. 21, 23, 25, 26, 27, 28) or
    “specific threats” (maj. opn., pp. 23, 27). By referring to the defense evidence
    broadly in the first half of the opinion as evidence of threats and violence, and
    then describing the erroneously excluded evidence as evidence of threats, the
    majority opinion seems to suggest it is concluding that only a subset of the
    defense evidence—the evidence relating to Tony’s harmful communicative
    acts—was erroneously excluded.
    The phrasing in the majority opinion is confusing and could lead to
    error at the next trial. To the extent it holds that the trial court was within
    its discretion to exclude evidence of Tony’s physical acts of violence—such as
    knife assaults, dangerous car chases, stalking, and other violent assaults—I
    49
    disagree. “ ‘[A] defendant is entitled to have a jury take into consideration all
    the elements in the case which might be expected to operate on his
    mind.’ ” (Humphrey, supra, 13 Cal.4th at p. 1083, italics added.) Just as
    Tony’s threats of violence are relevant, evidence of Tony’s physical violence
    against or known to Zumini is also relevant and admissible to explain
    Zumini’s perceptions of Tony, and the jury should be permitted to consider
    this evidence in evaluating whether Zumini acted with the mental state
    required for first degree murder. (Davis, supra, 63 Cal.2d at p. 656 [violence];
    Minifie, 
    supra,
     13 Cal.4th at p. 1066 [threats coupled with reputation for
    violence]; Humphrey, at p. 1086 [threats and violence]; People v. Garvin
    (2003) 
    110 Cal.App.4th 484
    , 488 [threats or assaults]; CALCRIM No. 505
    [jury entitled to consider whether the decedent “threatened or harmed the
    defendant [or others] in the past”].) Contrary to what the majority opinion
    intimates, the trial court lacks the discretion to exclude evidence of Tony’s
    acts of violence as irrelevant.
    Second, the majority opinion states, “the court was required, at a
    minimum, to permit Zumini to testify regarding prior threats Tony made that
    Zumini was personally aware of at the time he committed the shooting, and
    which occurred in the months preceding the shooting.” (Maj. opn., p. 24,
    italics added.) I am concerned the trial court may take this as a signal that it
    will have discretion to admit only this “minimum” when the case is retried. If
    it does, I believe it will risk committing reversible error yet again. The
    majority opinion might be taken to suggest the trial court will have discretion
    to preclude all defense fact witnesses other than Zumini from testifying. To
    be clear, Zumini is entitled to present, in addition to his own testimony,
    witnesses to corroborate his account so that the jury can assess the credibility
    of the defense case. (Crane, 
    supra,
     476 U.S. at pp. 690–691; see Davis, supra,
    50
    63 Cal.2d at p. 657 [“Defendant was entitled to bolster his claims by
    corroborating testimony in his attempt to influence the jurors to a more
    favorable finding.”]; Minifie, 
    supra,
     13 Cal.4th at p. 1066 [“A defendant who
    testifies that he acted from fear of a clan united against him is entitled to
    corroborate that testimony with evidence ‘tend[ing] in reason to prove’ that
    the fear was reasonable.”].)
    I also disagree with the majority opinion’s intimation that the defense
    evidence, including Zumini’s own testimony, might permissibly be restricted
    to evidence of Tony’s aggressions during “the months preceding the
    shooting.” (Maj. opn., p. 24.) The violent events from Zumini’s childhood are
    plainly relevant to the charge of first degree murder since, in Ferry’s expert
    opinion, they caused him to develop the psychological disorders that affected
    his mental state at the time of the homicide. (See Cortes, supra, 192
    Cal.App.4th at pp. 899–900, 910 [holding the trial court erred in precluding
    the defense psychiatric expert from testifying about, among other things,
    “defendant’s upbringing and traumatic experiences as a child and/or
    adolescent” because they were relevant to his opinion that the defendant’s
    PTSD and dissociative state affected his mental state and behavior].) The
    defense proffer also identified events from Zumini’s adolescence and
    adulthood relevant to the jury’s ability to understand his complex dynamic
    with Tony, including his reasons for wanting to intimidate Tony but not kill
    him. The defense explained how these experiences from throughout Zumini’s
    life informed Zumini’s actions and perceptions leading up to and during the
    homicide, and thereby demonstrated that they, too, are relevant and worthy
    of consideration by a jury.
    The majority opinion’s suggestion that the trial court may nevertheless
    have discretion to exclude evidence of Tony’s “threats” that occurred outside
    51
    “the months preceding the shooting” appears to be derived from its assertion
    earlier in the same paragraph that prior threats “too remote in time to the
    occurrence of the crime” are less probative, and subject to exclusion. (Maj.
    opn., pp. 23–24, citing § 352, People v. Shoemaker (1982) 
    135 Cal.App.3d 442
    (Shoemaker), and People v. Gonzales (1967) 
    66 Cal.2d 482
     (Gonzales).) The
    majority opinion does not explain why threats that occurred more than “the
    months preceding the shooting” would be “too remote.”
    Section 352 does not use the word “remote” and does not purport to
    prejudge remote events as less probative. (See § 352 [“The court in its
    discretion may exclude evidence if its probative value is substantially
    outweighed by the probability that its admission will (a) necessitate undue
    consumption of time or (b) create substantial danger of undue prejudice, of
    confusing the issues, or of misleading the jury.”].) The authorities cited by
    the majority opinion are inapposite; neither Shoemaker nor Gonzales, stand
    for the proposition that a victim’s assaultive conduct was not probative if it
    happened more than several months before the crime. More importantly,
    neither case addressed the admissibility of evidence of a victim’s death
    threats and attacks against the defendant, which would have far greater
    probative value than character evidence unrelated to the defendant or the
    charged crime. (See Shoemaker, supra, 135 Cal.App.3d at p. 448 [addressing
    the admissibility of subsequent violent acts by the victim to prove the victim
    had a violent character and was the aggressor in the assault]; Gonzales,
    supra, 66 Cal.2d at pp. 499–500 [addressing the admissibility of reputation
    evidence gathered seven years before the homicide to prove one of the
    decedent’s associates was a turbulent, “ ‘assaultive type’ ” person].) And as
    Cortes demonstrates, a defendant’s “remote” experiences can be highly
    probative of his mental state and conduct at the time of the offense. (See
    52
    Cortes, supra, 192 Cal.App.4th at pp. 899–900, 910.) The majority opinion’s
    suggestion that Tony’s threats and acts of violence that happened earlier
    than the “months preceding the shooting” are less probative is therefore
    unjustified, particularly under the circumstances of this case. (Maj. opn.,
    p. 24.)
    Third, the majority opinion addresses the admissibility of facts to
    support Ferry’s opinions in a footnote that I find difficult to decipher. (See
    maj. opn., p. 24, fn. 6.) It seems to conclude that the trial court had the
    discretion to prevent the defense from putting on any fact witness to testify
    based on personal knowledge to the events Ferry was relying on for his
    opinions. The rationale seems to be that because Ferry’s opinions were based
    on events from “Zumini’s early childhood”—which, after all, is just a segment
    of the “ ‘entire history of the relationship” between Zumini and Tony—the
    court was justified in admitting no foundational evidence at all to support
    Ferry’s opinions. (Ibid.) This, it seems to me, is clearly incorrect. The
    defense had a right to prove the case-specific events on which Ferry relied for
    his opinions through its fact witnesses. (Sanchez, supra, 63 Cal.4th at
    p. 676.) I also disagree that Ferry’s opinions were based only on Zumini’s
    “early childhood.” (Maj. opn., p. 24, fn. 6.) Ferry testified at the 402 hearing
    that Zumini developed complex PTSD when he was between two and 11 years
    old (the “early childhood” years the majority appears to be referring
    to). However, he was not limited to opining about Zumini’s development of
    particular psychological diagnoses. Ferry was permitted to testify that
    Zumini suffered from these diagnoses at the time of the homicide. At the 402
    hearing, Ferry testified to factors that supported this opinion, some of which
    involved events that happened when Zumini was “a teenager” and “certainly
    as an adult.”
    53
    VI.
    The Errors Were Prejudicial Under Chapman
    The majority opinion does not decide whether the trial court’s
    evidentiary errors violated the federal Constitution. I conclude they did. I
    would therefore hold that the harmlessness of the trial court’s errors must be
    reviewed under the test promulgated in Chapman, supra, 
    386 U.S. 18
    .
    “The right of an accused in a criminal trial to due process is, in essence,
    the right to a fair opportunity to defend against the State’s accusations.”
    (Chambers v. Mississippi (1973) 
    410 U.S. 284
    , 294 (Chambers).) “Few rights
    are more fundamental than that of an accused to present witnesses in his
    own defense.” (Id. at p. 302) “Logically included in the accused’s right to call
    witnesses whose testimony is ‘material and favorable to his defense,’
    [citation], is a right to testify himself, should he decide it is in his favor to do
    so.” (Rock, 
    supra,
     483 U.S. at p. 52.) After all, “the most important witness
    for the defense in many criminal cases is the defendant himself” (id. at p. 52),
    as it is “ ‘the accused, who above all others[,] may be in a position to meet the
    prosecution’s case’ ” (id. at p. 50). “Whether rooted directly in the Due
    Process Clause of the Fourteenth Amendment, [citation], or in the
    Compulsory Process or Confrontation clauses of the Sixth Amendment,
    [citations], the Constitution guarantees criminal defendants ‘a meaningful
    opportunity to present a complete defense.’ ” (Crane, 
    supra,
     476 U.S. at
    p. 690, italics added; accord Holmes, 
    supra,
     547 U.S. at pp. 324−325; Rock, at
    pp. 51–52.)
    Important though they are, these rights are “subject to reasonable
    restrictions.” (United States v. Scheffer (1998) 
    523 U.S. 303
    , 308.) “As a
    general matter, the ordinary rules of evidence do not impermissibly infringe
    on the accused’s right to present a defense.” (People v. Hall (1986) 
    41 Cal.3d 54
    826, 834.) “In any given criminal case[,] the trial judge is called upon to
    make dozens, sometimes hundreds, of decisions concerning the admissibility
    of evidence,” and the Constitution leaves to trial judges “ ‘wide latitude’ to
    exclude evidence that is ‘repetitive . . . , only marginally relevant’ or poses an
    undue risk of ‘harassment, prejudice, [or] confusion of the issues.’ ” (Crane,
    supra, 476 U.S. at pp. 689–690.) The right to present a complete defense,
    however, “is abridged by evidence rules that ‘infring[e] upon a weighty
    interest of the accused’ and are ‘ “arbitrary” or “disproportionate to the
    purposes they are designed to serve.” ’ ” (Holmes, 
    supra,
     547 U.S. at p. 324.)
    Thus, courts have recognized that “completely excluding evidence of an
    accused’s defense theoretically could rise to [the level of a constitutional
    violation],” while “excluding defense evidence on a minor or subsidiary point
    does not impair an accused’s due process right to present a defense.” (People
    v. Fudge (1994) 
    7 Cal.4th 1075
    , 1103; accord People v. Lucas (2014) 
    60 Cal.4th 153
    , 279.) Where the errors are of constitutional dimension, the test
    for harmlessness is “the stricter beyond-a-reasonable doubt” standard set
    forth in Chapman. (Fudge, at p. 1103.)
    Three decisions by the United States Supreme Court finding the
    exclusion of defense evidence violated the defendant’s constitutional right to
    present a defense are instructive here.
    In Chambers, the defendant stood trial for the murder of a police
    officer. He called as a witness a man named McDonald, who had previously
    given a sworn written confession and told three other witnesses that he shot
    the police officer. When McDonald repudiated his confession on the stand,
    the defense was not permitted to cross examine McDonald as an adverse
    witness based on Mississippi’s “ ‘voucher’ ” rule, which barred parties from
    impeaching their own witnesses, or to call the three other witnesses to whom
    55
    McDonald confessed because the state hearsay rule did not include an
    exception for statements against penal interest. (Chambers, 
    supra,
     410 U.S.
    at pp. 287−294.) Even though the defense was able to “chip[ ] away at the
    fringes of McDonald’s story by introducing admissible testimony from other
    sources” and was able to admit evidence of the recanted written confession,
    the high court held the excluded evidence rendered his defense “far less
    persuasive than it might have been had he been given the opportunity to
    subject McDonald’s statements to cross-examination or had the other
    confessions been admitted.” (Id. at p. 294, italics added.) Noting the state
    had not advanced any rational justification for its evidentiary rules, the
    Court concluded the exclusion of “this critical evidence, coupled with the
    [s]tate’s refusal to permit [the defendant] to cross-examine McDonald, denied
    him a trial in accord with traditional and fundamental standards of due
    process.” (Id. at pp. 297, 302.)
    In Crane, a 16-year-old defendant stood trial for the shooting death of a
    liquor store clerk. He sought to introduce evidence at trial that his confession
    to the police was unreliable because of the “physical and psychological
    environment in which the confession was obtained.” (Crane, supra, 476 U.S.
    at p. 684.) The trial court had previously ruled the confession was voluntary
    in denying the defendant’s motion to suppress. (Id. at p. 685.) After the
    defense in opening statement told the jury “evidence bearing on the length of
    the interrogation and the manner in which it was conducted would show that
    the statement was unworthy of belief,” the prosecution moved to preclude the
    defense from introducing such evidence. (Ibid.) The trial court agreed with
    the prosecution that the evidence was relevant only to “ ‘voluntariness’ ” of
    the confession, a “ ‘legal matter’ ” it had already determined. (Id. at
    pp. 685−686.) It thus ruled the defense could inquire into inconsistencies
    56
    within the confession, but it “would not be permitted to ‘develop in front of
    the jury’ any evidence about the duration of the interrogation or the
    individuals who were in attendance.” (Ibid.)
    The Crane court held the trial court’s evidentiary ruling deprived the
    defendant of his right to a fair opportunity to present a defense. (Crane,
    supra, 476 U.S. at p. 687.) It explained the manner in which a statement is
    extracted can be relevant to the purely legal question of its voluntariness, but
    “can also be of substantial relevance to the ultimate factual issue of the
    defendant’s guilt or innocence. Confessions, even those that have been found
    to be voluntary, are not conclusive of guilt. And, as with any other part of the
    prosecutor’s case, a confession may be shown to be ‘insufficiently corroborated
    or otherwise . . . unworthy of belief.’ ” (Id. at pp. 688−689.) Thus, “stripped of
    the power to describe to the jury the circumstances that prompted his
    confession, the defendant is effectively disabled from answering the one
    question every rational juror needs answered: If the defendant is innocent,
    why did he previously admit his guilt?” (Id. at p. 689, italics added.)
    The Crane court thus had “little trouble concluding on the facts of this
    case that the blanket exclusion of the proffered testimony about the
    circumstances of petitioner’s confession deprived him of a fair trial.” (Crane,
    supra, 476 U.S. at p. 690.) The opportunity to be heard afforded by the Due
    Process Clause “would be an empty one if the State were permitted to exclude
    competent, reliable evidence bearing on the credibility of a confession when
    such evidence is central to the defendant’s claim of innocence.” (Ibid.) And
    “[i]n the absence of any valid state justification, exclusion of this kind of
    exculpatory evidence deprives a defendant of the basic right to have the
    prosecutor’s case encounter and ‘survive the crucible of meaningful
    adversarial testing.’ ” (Id. at pp. 690−691.)
    57
    In Holmes, the Supreme Court held a defendant’s federal constitutional
    rights were violated by a state evidentiary rule that precluded him from
    introducing proof of third-party guilt, in a case where the prosecution has
    introduced forensic evidence that, if believed, strongly supports a guilty
    verdict. (Holmes, supra, 547 U.S. at pp. 323−324, 331.) The Court found that
    the rule “appears to be based on the . . . logic” that “[w]here (1) it is clear that
    only one person was involved in the commission of a particular crime and (2)
    there is strong evidence that the defendant was the perpetrator, it follows
    that evidence of third-party guilt must be weak. But this logic depends on an
    accurate evaluation of the prosecution’s proof, and the true strength of the
    prosecution’s proof cannot be assessed without considering challenges to the
    reliability of the prosecution’s evidence. . . . And where the credibility of the
    prosecution’s witnesses or the reliability of its evidence is not conceded, the
    strength of the prosecution’s case cannot be assessed without making the sort
    of factual findings that have traditionally been reserved for the trier of fact.”
    (Id. at p. 330, italics added.) Because the rule was “ ‘arbitrary’ ” and the state
    had not identified any legitimate end that it served, the rule deprived the
    defendant of “ ‘ “a meaningful opportunity to present a complete defense.” ’ ”
    (Id. at p. 331.)
    A comparison of this case with the foregoing cases compels the
    conclusion that the trial court’s errors in this case violated Zumini’s
    fundamental right to a meaningful opportunity to present a complete defense.
    The trial court’s errors went to the very heart of Zumini’s defense to first
    degree murder. By excluding Zumini’s own testimony and corroborating
    witness testimony on Tony’s threats and acts of violence against Zumini and
    his loved ones, the trial court effectively took from the jury the determination
    of the only disputed issue of consequence in this case: Zumini’s mental state
    58
    at the time of the shooting and his level of culpability. The trial court’s ruling
    resulted in a complete exclusion of Zumini’s defense, not merely evidence on a
    minor or subsidiary point. The deprivation of Zumini’s defense was at least
    as substantial as in Chambers, Crane, and Holmes.
    As in Crane, the excluded evidence of Tony’s threats and acts of
    violence was “highly relevant” to the jury’s evaluation of Zumini’s testimony
    that although he killed his father, he did not do so deliberately or with
    premeditation. (Crane, 
    supra,
     476 U.S. at p. 688.) Zumini’s ability to defend
    against the charge of first degree murder depended entirely on his ability not
    only to deny that he acted with the mental state alleged by the prosecution,
    but to do so credibly. It was essential that the jury hear Zumini’s explanation
    of his behavior from Zumini himself. It was equally important that the
    defense be permitted to corroborate Zumini’s account through the testimony
    of other witnesses. As in Crane, Zumini was “stripped of the power to
    describe to the jury the circumstances that prompted” him to drive to his
    father’s house armed with a gun and then shoot his father, if the murder was
    not premeditated. (Id. at p. 689.)
    As in Crane, the trial court’s rulings effectively resulted in a “blanket
    exclusion” of all evidence that would have allowed Zumini to explain his
    behavior, motivations, and perceptions, and to negate the inference of
    culpability that the jury would naturally infer from his conduct. (Crane,
    supra, 476 U.S. at p. 690; see Minifie, 
    supra,
     13 Cal.4th at pp. 1065–1066 [a
    defendant claiming self-defense is entitled to prove the fear that prompted
    his assault was reasonable; “The defendant’s perceptions are at issue, and
    threats from a family and its friends may color a person’s perceptions of that
    group no less than threats from an individual may color a person’s
    perceptions of that individual.”].) An entire category of evidence necessary to
    59
    every mental state defense on which Zumini sought to rely was removed from
    the jury’s consideration.
    No rational justification for the exclusion of this evidence has been
    presented. The trial court rejected out of hand the defense argument that its
    evidence was relevant and admissible to negate the claim of a deliberate,
    premeditated murder. On appeal, the People concede they “have found no
    published authority” supporting exclusion on relevance grounds of evidence of
    a victim’s prior threats and acts of violence against a defendant “to reduce
    murder from first to second degree.” Thus, not only was the trial court’s
    exclusion of the defense evidence categorical, but its ruling lacked a
    legitimate legal basis. Indeed, as in Holmes, the record in this case suggests
    the logic of the court’s rulings appears to have rested on its determination
    that because the prosecutor’s case of first degree murder was “legally pretty
    solid,” any defense evidence to the contrary must be weak.
    Moreover, the prosecution did not dispute the specific events of violence
    by Tony against Zumini and his family had occurred; it only “disput[ed] what
    happened during these incidents” and even sought to present its own version
    of what happened during the summer of 2013. (Italics added.) The trial
    court stated it did not doubt the defense contention that Tony “was horrific
    and horrible to [Zumini],” rather it “believe[d] [the specific events] occurred.”
    And the defense had identified numerous witnesses who had percipient
    knowledge of Tony’s disturbing history of abuse and violence against Zumini
    and his family, as well as evidence of Tony’s menacing voicemails and text
    messages.
    Before concluding my analysis, a word on the effect of the trial court’s
    “prima facie case” requirement. As I have discussed, the court required
    Zumini to testify “backwards” and testify to his commission of the homicide
    60
    before it would consider allowing him or any other defense witness to testify
    about the events he sought to rely on to explain his mental state. The court’s
    imposition of this requirement bears a strong resemblance to a procedural
    rule held unconstitutional in Brooks v. Tennessee (1972) 
    406 U.S. 605
    . In
    Brooks, a Tennessee statute required the defendant to testify first, before he
    could call any other witness. (Id. at p. 607.) The United States Supreme
    Court held the rule cast too heavy a burden on a defendant’s “otherwise
    unconditional right not to take the stand.” (Id. at pp. 610–611.) It further
    held the rule impermissibly “restrict[ed] the defense—particularly counsel—
    in the planning of its case.” (Id. at p. 612.) These same observations apply to
    the “prima facie case” requirement adopted by the trial court here. The court
    intruded into defense counsel’s ability to control the presentation of his
    client’s testimony just as surely as the Tennessee procedural rule held
    unconstitutional in Brooks.
    For all these reasons, I would conclude the trial court’s errors must be
    reviewed for harmlessness under the stricter test articulated in Chapman.
    Applying that standard to the trial court’s rulings in this case, I concur with
    the majority that the court’s errors were not harmless. (Maj. opn., p. 29.)
    The only issue the defense sought to contest at trial was Zumini’s
    mental state for first degree murder. As a result of the trial court’s erroneous
    rulings, every fact on which the defense sought to rely to explain Zumini’s
    mindset and behavior during the commission of the offense, and to support
    the credibility of Zumini’s claim that he acted with a different mental state
    than the mental state of which he stood accused, was excluded. Zumini was
    thus confined to making bare assertions about his mental state, unable even
    to explain his own assertions.
    61
    Zumini was permitted to testify he was afraid his father would kill him;
    he was not allowed to say why. He was allowed to testify that he went to
    Tony’s house intending to confront Tony, because he had been “making
    threats”; he was unable to say the threats were death threats, that they had
    been levied against Zumini and his child’s mother. He was allowed to testify
    he confronted Tony because he did not want him “bringing people by the
    house”; he was not permitted to explain that “bringing people by the house”
    did not refer to an uninvited social visit. The jury never heard that Tony had
    attacked Zumini multiple times with his knife; that Tony had also assaulted
    Asaad and Zumini’s baby; that Tony had conveyed his desire to kill Zumini to
    numerous people; and that Tony showed Asaad a handgun and said he was
    going to use it on Zumini. Deprived of these facts, the jury could not
    conceivably understand Zumini’s perception of Tony. Lacking information
    that Tony had been stalking Zumini’s house and had threatened to shoot at
    his house only 10 days before the homicide, the jury was surely unable to
    appreciate the significance to Zumini of the news received after 5:00 p.m. on
    the day of the homicide that his father had been seen parked on Zumini’s
    street early that very morning.
    Additionally, there is no denying “[t]he prosecutor took full advantage
    of the [trial] court’s ruling in closing argument.” (Cortes, supra, 192
    Cal.App.4th at p. 912.) However, the majority opinion offers only the most
    benign elements of the prosecutor’s closing argument. The prosecutor
    capitalized on the trial court’s rulings, assuaging the jury to ignore its
    natural curiosity by telling them “[t]hings in this case are exactly what they
    appear to be” and that “[o]n the defendant’s side[, they] really only have the
    defendant’s word” and he “has a motive to lie.” He asserted that Zumini had
    studied “all the police reports, all the witness statements[,] [a]ll the
    62
    photographs, all the forensic evidence,” and “with that information[,] he was
    able to come up with an explanation for what he did.” 10 Even so, according
    to the prosecutor, “[t]here were so many holes in this man’s story.” The
    prosecutor’s arguments require the reminder that a “[s]uccessful prosecution
    is defined not by the result, but by the process,” and the “whole job of the trial
    prosecutor” is to “[p]rovide a fair trial.” (People v. Force (2019) 
    39 Cal.App.5th 506
    , 508–509.) His arguments undoubtedly increased the harm
    caused by the trial court’s deprivation of Zumini’s right to present a complete
    defense and to have the prosecutor’s case “encounter and ‘survive the crucible
    of meaningful adversarial testing.’ ” (Crane, 
    supra,
     476 U.S. at pp. 690−691.)
    I agree with the majority it is likely the jury would have convicted
    Zumini of a lesser offense had it been given the benefit of the excluded
    evidence. But I have little difficulty concluding on the facts of this case that
    this is that rare case where the trial court’s erroneous evidentiary rulings
    deprived the defendant of his constitutional rights under the Sixth and
    Fourteenth Amendments, and these errors were not harmless beyond a
    reasonable doubt.
    DO, J.
    10     The prosecutor surely was aware Zumini told the police, on the night he
    was arrested, about the history of Tony’s violence and Zumini’s fear of Tony.
    According to the detective’s crime report dated September 6, 2013, Zumini
    told the police that “[Tony] had threatened to murder his girlfriend and
    daughter. [Zumini] also stated that [Tony] had something special for him
    and his brother but did not know what; he believed [Tony] was going to hurt
    him.” Zumini had also told the police that his neighbor told him, on the day
    of the homicide, that Tony’s car was seen parked on his street in the early
    morning hours of September 6.
    63