People v. Powell , 5 Cal. 5th 921 ( 2018 )


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  • Filed 8/13/18
    IN THE SUPREME COURT OF CALIFORNIA
    THE PEOPLE,                          )
    )
    Plaintiff and Respondent, )
    )                             S137730
    v.                        )
    )
    TROY LINCOLN POWELL,                 )
    )                     Los Angeles County
    Defendant and Appellant.  )                 Super. Ct. No. BA240299-01
    ____________________________________)
    A jury convicted defendant Troy Lincoln Powell of the first degree murder
    of Tammy Epperson (Pen. Code, § 187, subd. (a))1 and found true three special
    circumstance allegations: that the murder was committed while defendant was
    engaged in the commission of rape (§ 190.2, subd. (a)(17)(C)) and mayhem (§
    190.2, subd. (a)(17)(J)), and the murder involved the infliction of torture (§ 190.2,
    subd. (a)(18)). The jury also convicted defendant of forcible rape (§ 261, subd.
    (a)(2)), mayhem (§ 203), and torture (§ 206). In a separate proceeding, the jury
    found that defendant was sane when he committed the crimes of which he was
    convicted.
    1      All further statutory references are to the Penal Code unless otherwise
    indicated.
    1
    The original jury was unable to reach a verdict in the penalty phase, but a
    newly-selected jury returned a verdict of death after a second penalty proceeding.
    Defendant moved for a new trial and for modification of his sentence to life
    without the possibility of parole. The trial court denied those motions and
    sentenced defendant to death.2 This appeal is automatic. (§ 1239, subd. (b).) For
    the reasons that follow, we affirm the judgment.
    I. FACTS
    A. Guilt Phase Evidence
    1. Prosecution evidence
    Tammy Epperson was a recovering heroin addict who had recently
    completed a 12-step treatment program and held a responsible job. Epperson lived
    on her own at Ballington Plaza, an apartment complex that accepted referrals from
    substance abuse recovery and inmate rehabilitation programs. The property
    manager there described Epperson as “a very good tenant. . . . [S]he took care of
    herself. She spoke well, she was very proud of what she was doing . . . , and she
    paid rent on time.” Her apartment was “very neat, everything in the right places.”
    Defendant met Epperson in the summer of 2000, while he was residing at
    Weingart Center in Los Angeles, which provided short-term housing and
    programs for persons recovering from substance abuse. Defendant had recently
    been released from prison. Epperson had gone to Weingart Center to visit
    Timothy Todd, a mutual friend of defendant and Epperson who was working
    there. Defendant noticed Epperson and later asked Todd to introduce him to her.
    Epperson was “hesitant” to meet defendant because “she didn’t want a
    2     The court also sentenced defendant to the upper terms of eight years on the
    convictions for forcible rape and mayhem and to life imprisonment on the torture
    conviction, all to be served concurrently and stayed pursuant to section 654.
    2
    relationship” at that time. Not long before, Epperson had broken off a romantic
    relationship when she discovered that her boyfriend, Ronald Sims, had lapsed
    back into substance abuse. Todd persisted, however, and Epperson eventually
    relented. Defendant, Epperson, and Todd soon began spending time together,
    attending movies, eating out, and driving together in defendant’s truck.
    The nature of defendant’s relationship with Epperson was the subject of
    conflicting testimony. Todd, who was employed as Epperson’s assistant and
    claimed to be her confidant, did not believe she and defendant were ever
    romantically involved. Photographs and other evidence, however, suggested that
    Epperson and defendant eventually spent time together in Todd’s absence.
    Without question, defendant became obsessed with Epperson, declaring to Todd
    that he loved her and saying, “If I can’t have her, nobody will. I’ll kill her and
    myself.” At some point, he became upset that she was “hanging around with other
    men.” Defendant began to appear uninvited at Epperson’s workplace and to call
    her repeatedly. His behavior eventually became distressing to Epperson. In late
    October 2000, Todd testified, Epperson broke off relations with defendant, but he
    continued to call her “constantly” at work.
    On a Sunday in early November, defendant was loitering across the street
    from Epperson’s church after services ended. She spotted him while she was
    standing outside the church, talking with Sims. Epperson and defendant were both
    Caucasian, while Sims was African-American. As will be discussed below, the
    inter-racial character of Epperson’s relationship with Sims may have been an
    irritant to defendant, who was affiliated with a white supremacist gang while in
    prison.
    Epperson told Sims she had to “deal with this matter now,” referring to
    defendant, and crossed the street to talk to defendant. According to the visitors’
    log at Ballington Plaza, defendant and Epperson entered the building that morning
    3
    at 10:45 a.m., and defendant left at 1:26 p.m. The afternoon security guard,
    however, saw defendant walk through the lobby toward the exit doors between
    2:00 and 3:00 that afternoon. Because the building required all guests to be
    escorted, the guard, who was familiar with Epperson and defendant, stopped
    defendant and asked him where Epperson was. Defendant replied that she was
    “ ‘in her unit resting.’ ” Later that day, defendant twice called Todd to ask him to
    check on Epperson, saying he had killed her, but Todd did not take defendant
    seriously.
    The police did not enter Epperson’s apartment until the next day, after she
    failed to appear for work. Epperson’s body was lying on the floor, and her
    apartment appeared to have been ransacked. Two days later, defendant was
    arrested at a local motel. Epperson’s keys were found on a table next to the bed in
    the motel room.
    Conclusions about the manner of Epperson’s death were based largely on
    forensic evidence regarding the condition of her apartment and her body. Officer
    Ronald Raquel, a criminalist who specialized in blood spatter and sexual assault
    analysis, examined Epperson’s apartment on the day following the killing. Raquel
    said Epperson’s body was located in the center of the apartment’s living quarters,
    between the bed and a chest of drawers. She was wearing a blouse and hooded
    sweatshirt on the upper portion of her body, but she was nude from the waist
    down, with a towel covering her lower body. Her brassiere, underneath the
    clothing, had been pushed up above the nipples of her breasts. The condition of
    her blood-soaked sweatshirt suggested that her head had been lying on top of it for
    some time without moving. A pair of jeans and women’s panties were piled at her
    feet. Blood stains and spatters were found throughout the living quarters and
    bathroom of the apartment.
    4
    Using a large number of photographs, Raquel described the pattern of blood
    residue in the apartment, explaining the inferences that could be drawn from the
    size, shape, and location of the stains and spatters. Based on his observations,
    Raquel inferred that the assault began in the bathroom, where Epperson’s head
    was slammed against the wall at least six times as her knees gave out, resulting in
    a descending pattern of smears. She was then carried into the living quarters and
    placed near the bed in the spot where her body was found. There the attack
    continued.
    Large pieces of a plaster flower vase and a hard lamp, both weighing at
    least ten pounds prior to breaking apart, were strewn about. Portions of each had
    been used to strike Epperson’s head repeatedly. She had also been struck with a
    wooden footstool and, after the footstool broke apart, its individual pieces. The
    cord of the lamp had been wrapped around her head. Blood stains on the jeans at
    her feet were consistent with a pair of bloody hands unfastening the jeans and
    forcing them down. The inner surface of her thighs contained residues consistent
    with “a bloody object [making] contact with the victim’s thighs after the . . . blue
    jeans were removed.” A screwdriver found under Epperson’s arm had blood on
    the tip and could have been used to inflict a wound below her eye.
    Following the assault, the assailant ransacked the apartment, going through
    Epperson’s closet, drawers, and other property. Paper towels thrown into the toilet
    had been used to clean a bloody object, possibly a pair of hands.
    Yulai Wang, M.D., a deputy medical examiner who performed an autopsy
    on Epperson, testified about the condition of her body. Dr. Wang concluded that
    Epperson died from multiple blunt force injuries. Epperson had bruises and
    abrasions on the back of her arm, hands, and her right leg that Wang characterized
    as “defensive wounds,” presumably suffered as Epperson sought to protect herself.
    Blows to her head had caused a large laceration on her forehead, with an
    5
    underlying open skull fracture, and there were multiple lacerations on her
    forehead, both eyes, nose, cheeks, and upper and lower lips, both inside and
    outside. The wound to her lower lip went “through and through,” and the open
    skull fracture was “deep in through the inside of her head.” She also had a seven-
    inch gaping skull fracture on the left side that ran from the front to the back of her
    head and extensive fractures to the front and base of her skull. Her nose and both
    cheekbones were fractured, and her face had been flattened by fractures of the
    underlying facial bones. Three separate wounds had been cut into the left side of
    her neck and head, three-quarters of an inch, one and one-half inch, and two and
    one-half inches long. A similar wound was on the right side of her neck. These
    wounds had been inflicted by a sharp, irregular object, such as broken glass, rather
    than a knife. None of these cuts had severed the carotid artery, an injury that
    would have been promptly fatal. Hemorrhaging in her eyes and bruises on her
    neck suggested strangulation. Her brain showed bruising and bleeding in several
    different places, and an area of bleeding beneath her scalp “almost cover[ed]” the
    right side of her head. Pieces of glass of different colors were removed from her
    body, clothing, head, and hair. In a career involving over 2000 autopsies, Dr.
    Wang had seen only a “very small number” of beatings this severe.
    Epperson also suffered injuries suggestive of sexual abuse. She had bruises
    and abrasions in the back and both sides of her vaginal area, with hemorrhaging
    under the skin. Dr. Wang concluded these injuries had been caused by “the blunt
    force penetration either by a penis with a lot of force or other kind of object of
    similar shape and size.” She found the extent of trauma suffered by Epperson to
    this part of her body to be “very rare[].”
    Because death causes a loss of blood pressure, Dr. Wang testified, injuries
    inflicted after death do not cause bruising and bleeding. Accordingly, she
    concluded that the “majority” of Epperson’s injuries, perhaps as much as 95
    6
    percent, were inflicted while she was still alive, including the extensive injuries to
    her vaginal area, face, and neck.
    The parties stipulated that DNA analysis identified defendant’s blood on
    Epperson’s jeans and panties, her inner thighs, and a washcloth and plastic water
    bottle found in the sink. In some of these areas, Epperson’s blood was mixed with
    that of defendant, and her blood was identified in samples collected around the
    living quarters. Defendant’s DNA was found in a vaginal swab, and his sperm
    was found in and outside her vagina.
    The prosecution also presented evidence of two prior assaults by defendant.
    A former girlfriend testified that, in 1992, she attempted to end their three-year
    relationship. Defendant responded that he would kill her. He grabbed her by the
    throat, dragged her to the ground and down the driveway, and kicked her twice in
    the head and neck. As he dragged her, he told her, “You’re going to die.”
    Neighbors prevented any further injury, but the woman has had lingering neck
    pain. The second assault victim met defendant in January 1999 and had a few
    dates with him. Two months after they met, she told him to stay away from her.
    Soon after, defendant lured her to his apartment, where he blocked the door with a
    chair and began yelling at her. When she responded, he hit her in the face,
    knocking her to the ground, climbed on top of her, and choked her into
    unconsciousness. When she recovered, defendant ordered her at knife-point to
    take off her clothes, tearing at them in his impatience. Eventually, defendant
    forced her, still at knife-point, to take him with her while she picked up her
    children from day care and then to drive him home. Defendant continued
    harassing the woman with telephone calls until she reported him to the police.
    7
    2. Defense evidence
    Testifying in his own defense, defendant confirmed that he met Epperson in
    June 2000, while he was living at the Weingart Center and working as a tutor in its
    computer lab. At the time, he was being medicated with Sinequan, a sedative that
    helps control paranoid feelings, as well as Depakote and Paxil. Without the
    medications, defendant suffered from paranoid anxiety. Through the end of July,
    defendant saw Epperson while in the company of Todd, but later Todd “no longer
    was basically in the picture anymore.” Epperson began to call defendant and
    invite him to visit her. By mid-August, he had a “standing invitation” to go to
    Epperson’s apartment. On Fridays, defendant would escort Epperson from her
    place of employment to the bank to deposit cash generated at the business, and
    during a transit strike in September he drove her to and from work. In late
    September, they began having sexual relations. Around that time, defendant
    stopped taking his medication, believing the medications made it difficult for him
    to maintain an erection. Photographs of Epperson’s apartment taken by defendant
    displayed a variety of small gifts he had given her, and he identified a series of
    furnishings he helped to install.
    One week before the killing, defendant said, he called Epperson to tell her
    he was leaving Los Angeles for a period of time because he “needed some time
    away.” During the conversion, he told Epperson he “expected to be put No. 1”
    among her male friends. When they spoke the next day, Epperson was angry
    because defendant had not consulted her about his decision to leave. They
    exchanged repeated calls that day, and Epperson eventually pleaded for defendant
    to return to her. He agreed that they would “call a truce and try and work this
    out.” The day before the killing, they spent most of the day together, shopping
    and visiting Epperson’s son. In the evening, they had sexual relations.
    8
    Epperson’s church was located across the street from the Weingart Center,
    where defendant resided. On the morning of the killing, defendant testified, he
    saw Epperson standing outside the church, while he was standing outside the
    Center. As he watched, Sims approached her. She then crossed the street to
    where defendant was standing and asked him to walk her home. When they
    arrived, she asked him to come in. They later drove to a Christian book store,
    returned to the apartment, and had consensual sexual relations. After they
    finished, Epperson went to the bathroom and took a telephone call. From
    Epperson’s side of the conversation, defendant said, he could tell she was making
    social plans with someone. When defendant asked her what the call concerned,
    she told him he did not “run her life” and refused to tell him who had called, other
    than it was a person from her church. An argument ensued, during which
    Epperson, standing in the bathroom, told him they were “done.” Defendant,
    feeling “crushed,” struck her. He had no memory of what happened after that,
    although he remembered seeing her on the floor. He said he had “blanked out”
    like this a few times before. Defendant testified that he neither planned nor
    intended to kill Epperson.
    The defense also presented testimony from an expert witness regarding the
    biological materials found on the panties lying at Epperson’s feet, suggesting they
    had been worn, if at all, for a short time before being removed.
    3. Prosecution rebuttal evidence
    Charles Vannoy, who acknowledged knowing defendant “[a] little bit,
    vaguely” from prison, repeatedly denied remembering the substance of an
    interview he had with police following Epperson’s killing. Over defense
    objection, the prosecution was permitted to play a redacted videotape of the
    9
    interview, which occurred three days after the killing and prior to defendant’s
    arrest.
    During the interview, Vannoy told police he first met defendant in prison in
    December 1999, and they became friends. After their release, Vannoy saw
    defendant at the Weingart Center, and defendant helped him move into an
    apartment three days before the killing.
    Late in the afternoon on the day Epperson was killed, Vannoy told the
    police, defendant called him and asked to come to Vannoy’s apartment. When
    defendant arrived, he was anxious and did not want to talk about what had
    happened. Instead, he made phone calls to family members and others. Very
    early the next morning, defendant told Vannoy he had beat Epperson to death
    because she had “rejected him” and “was seeing somebody else.” Defendant said
    he had been having sexual relations regularly with Epperson for two weeks to a
    month prior to her killing. On the day of the killing, a man phoned Epperson
    shortly after she and defendant finished having intercourse, and she appeared to
    make plans to see the man. During an ensuing argument, Epperson insisted
    defendant did not “own” her and that she would see “who I want, when I want.”
    He then followed her into the bathroom, told her to sit on the toilet, and hit her
    with a candle holder. As defendant was beating her, Epperson asked why he was
    doing it. He told her, “All I wanted you to do was to love me, you know, and you
    wouldn’t do that.” At some point during the beating she asked, “Are you going to
    kill me, Troy?” and he responded, “Yes, Tammy, I am. I am going to kill you.”
    Defendant told Vannoy he cut both sides of Epperson’s neck with glass, hit her on
    the head with a wooden stool and a big lamp, and drove a screwdriver or ice pick
    into her head, leaving a “big hole” in her forehead.
    After some sleep, defendant signed over ownership of his truck to Vannoy
    and then asked Vannoy to take him to Hollywood. When Vannoy dropped him
    10
    off, defendant said he was going “to have fun for a couple days” and then turn
    himself in. He said he first intended to steal money from Epperson’s place of
    employment, using keys he had taken from her.
    The prosecution also called a detective who had searched Epperson’s
    apartment. The detective stated that he found a broken candle holder in the
    bathroom and a broken stool and lamp elsewhere. The officer had also seen “a
    hole to the middle of [Epperson’s] head” when he observed the body. The
    detective later went to Epperson’s place of employment and confirmed that the
    keys found in defendant’s possession at the time of his arrest fit the locks on its
    doors. Finally, the detective described various wounds on defendant’s body at the
    time of his arrest, including cuts and bruising on his hands, a small cut on his
    forehead, and a one-inch cut on his calf.
    B. Sanity Phase Evidence
    Following defendant’s conviction in the guilt phase, the same jury heard the
    trial of defendant’s insanity defense.
    1. Defense evidence
    Kyle Boone, Ph.D., a clinical neuropsychologist, administered to defendant
    a series of “objective” standardized tests designed to detect brain abnormalities.
    Dr. Boone found defendant’s intelligence to be at the low end of the average
    range. Defendant did “well” on most of the characteristics measured, but his
    problem solving skills, involving reasoning and logic, were “very low, very
    impaired.” The tests on which defendant performed poorly measured the ability to
    think creatively to solve problems, evaluate the consequences of behavior, and
    cease behavior that is not appropriate to a situation. On a test that measured the
    “ability to inhibit,” or to stop behavior that is inappropriate or incorrect, defendant
    scored in the second percentile, suggesting “that in his daily life he would have a
    11
    great deal of difficulty stopping a behavior that was not appropriate to the
    situation.”
    Dr. Boone concluded that defendant’s poor performance on these particular
    tests demonstrated that the frontal lobes of his brain, which enable problem
    solving, emotional expression, and empathy, were “not working correctly” due to
    “brain damage or brain dysfunction.” The dysfunction would cause defendant to
    make bad decisions and lose control of his behavior. Stressful circumstances and
    alcohol would worsen this effect. According to Dr. Boone, a person who
    performed like defendant did on the tests “really doesn’t have the brain equipment,
    the hardware, so to speak, to control their behavior. They simply don’t have the
    apparatus to make reasoned decisions about their behavior.”
    Part of Dr. Boone’s testing involved an evaluation of defendant’s good faith
    in participating in the tests, and Dr. Boone, a specialist in detecting malingering,
    concluded defendant was “doing his best on the testing,” rather than faking
    symptoms. In addition, as she pointed out, defendant’s normal to excellent
    performance on many of the tests and consistently poor performance on others was
    inconsistent with malingering, since he would have had to know on which tests to
    do well and poorly.
    Roger Bertoldi, M.D., a neurophysiologist, testified regarding the
    occurrence and effect of brain seizures, generically referred to as epilepsy. Some
    types of epilepsy, in particular temporal lobe epilepsy, can result in a loss of
    control, leading to acts of violence. A seizure of this type can result in
    uncontrollable rage. Defendant began suffering seizures before he was three years
    old. His seizures continued periodically during childhood, leading Dr. Bertoldi to
    conclude defendant suffered from “true epilepsy,” caused by abnormal brain
    activity. As an adult, Dr. Bertoldi testified, defendant continues to exhibit
    symptoms of nocturnal seizures. An electroencephalogram (EEG) performed on
    12
    defendant demonstrated two abnormalities. First, the frontal portion of his brain
    had “too much slow activity,” which showed that this portion of his brain “is not
    functioning correctly.” To this extent, Dr. Bertoldi said, his findings were
    consistent with those of Dr. Boone. Second, defendant’s EEG indicated
    “paroxysmal activity,” periodic spikes of activity that arose and receded, which is
    also “consistent with underlying brain dysfunction.” A computer analysis
    confirmed the abnormal slow function in the front of defendant’s brain, detected in
    fewer than 1 percent of the population and suggesting defendant suffered from
    epilepsy. Defendant was prescribed Depakote to control the seizures by limiting
    the penetration of abnormal activity into his brain. Defendant had told Dr.
    Bertoldi that prior to the various violent episodes in his life, he had ceased taking
    the drug. This coincidence, in Dr. Bertoldi’s view, connected the violent episodes
    to an underlying epileptic disorder. In Dr. Bertoldi’s experience, epileptic patients
    commonly describe a sense of disassociation from their conduct at the time of a
    seizure. He explained that the type of brain dysfunction he observed in defendant
    can result in “extraordinary rage like a primitive, very primitive rage.”
    Saul Niedorf, M.D., is a psychiatrist who often worked with the victims and
    perpetrators of domestic violence. Based on three interviews with defendant
    during his incarceration and Dr. Niedorf’s review of “a dozen” reports on
    defendant, he concluded defendant suffers from a mental condition known as
    “intermittent explosive disorder,” which is characterized by destructive or violent
    actions that occur suddenly and lack a “cutoff.” Dr. Niedorf based his diagnosis
    on a number of factors, including (1) defendant’s history of neurological
    abnormalities from an early age, (2) the continued presence of slow brain waves in
    his recent EEG, which indicated a “failure of development,” (3) Dr. Boone’s
    testing, which indicated “the absence of a certain kind of function,” and (4) a
    recent positron emission tomography (PET) scan showing areas of abnormally low
    13
    activity in defendant’s brain, which suggested that his brain lacked the capacity to
    inhibit his rage once it started. In addition, Dr. Niedorf observed, the harsh facts
    of defendant’s upbringing demonstrated that he was “programmed for violence”
    by the brutal conduct of an abusive father toward his family members, conduct
    that defendant internalized. Dr. Niedorf noted that defendant also had a history of
    suicide attempts, beginning in childhood and continuing through his then-current
    incarceration, which was consistent with his diagnosis. Further corroborating his
    diagnosis was defendant’s positive response to mood stabilizing medications,
    which reduce a person’s arousal level and prevent excessive agitation. Dr. Niedorf
    also observed that, beginning in 1993 and continuing to the time of the killing,
    defendant had been diagnosed repeatedly with a variety of mental disorders,
    largely depression, bipolar disorder, and schizophrenia.
    In Dr. Niedorf’s view, defendant met the legal definition of insanity at the
    time he committed the killing. He neither knew nor understood the nature and
    quality of his actions at the time he was beating Epperson, existing instead in an
    altered state of consciousness in which he failed to feel empathy or recognize the
    significance of his actions. He may have been aware, at the time, of the events
    occurring, but he was unable to register the emotions associated with the events
    until later. Nor could defendant distinguish right from wrong because, at the time,
    the parts of his brain that initiate good behaviors and stop bad behaviors, his
    frontal and temporal lobes, were not functioning. Given the “practiced” nature of
    the behaviors, he neither voluntarily initiated them nor had the ability to stop them
    once they had begun, and he was not conscious of his conduct at the time it
    occurred.
    William Vicary, M.D., a psychiatrist, first evaluated defendant in 1993 and
    1994, when he was retained by the court to evaluate defendant’s mental
    competence to stand trial. In connection with the present proceedings, Dr. Vicary
    14
    had interviewed defendant on five or six occasions, for a total of ten hours. Based
    on that investigation, he concluded defendant suffered from a “major mental
    disorder,” primarily bipolar disorder. Dr. Vicary believed his conclusion was
    supported by defendant’s psychoactive medication schedule. He said that the
    medications prescribed for defendant, if given to a normal person, would place
    him or her in “a semi-coma for a period of three days.” That defendant could take
    the various medications at high doses and remain alert and rational at the time of
    his testimony demonstrated “that these medications are fitting in with his illnesses
    and helping him.” If defendant were faking his disorder, “he would have been
    under the influence and barely able to speak.” Dr. Vicary explained that bipolar
    disorder is characterized by alternating periods of moody, irritable, and frenetic
    activity and periods of depression and inactivity, including attempted suicide.
    Depression and bipolar disorder had featured in defendant’s diagnoses since he
    was a teenager, and Dr. Vicary found that defendant’s conduct displayed the
    diagnostic behaviors for bipolar disorder.
    Based on defendant’s account of the Epperson killing, Dr. Vicary believed
    defendant understood the nature and quality of his acts at the time. He did not
    believe, however, that defendant could distinguish right from wrong. One feature
    of bipolar disorder is “explosive outbursts,” in which the person is “not thinking, .
    . . just acting, and . . . there is no rationality, no restraint, there’s nothing that can
    stop the explosion.” Although defendant had some understanding of what he was
    doing, he was unable to stop himself. In Dr. Vicary’s view, defendant likely
    recognized to some degree the wrongfulness of his conduct once he had finished
    and regained his composure, but during the event he had no grasp of right and
    wrong.
    15
    2. Prosecution evidence
    David Griesemer is a clinical neurophysiologist who studies epilepsy and
    EEG’s. Prior to his testimony, he examined defendant and found his functioning
    normal. According to Dr. Griesemer, defendant had no memory of suffering
    seizures after childhood, and about half of persons with childhood seizures
    “outgrow” them. Defendant’s childhood EEG was interesting because, although
    the EEG was abnormal, he was not suffering symptoms, a finding “not
    inconsistent with some of the benign epilepsies.” In reviewing defendant’s most
    recent EEG, Dr. Griesemer found “some subtle abnormal findings,” but “they
    were not epileptic findings.” In other words, although Dr. Griesemer
    acknowledged the slowing in defendant’s EEG, he did not believe it indicated a
    “tendency to have epilepsy.” Further, he did not believe it suggested “significant”
    frontal lobe slowing.
    Kris Mohandie, Ph.D., a psychologist, interviewed defendant on three
    occasions, reviewed his medical and psychiatric records, and administered two
    “objective” psychological tests. The results of the tests, in particular, suggested to
    Dr. Mohandie that defendant was faking at least some of his psychiatric
    symptoms. On both tests, defendant claimed to have more problems than most
    psychiatric patients claim, suggesting his responses were a “fake bad response.”
    One test indicated probable feigning, while the other indicated feigning. Given
    defendant’s “tendency to exaggerate his symptoms,” Dr. Mohandie was unable to
    find reliable evidence to diagnose defendant with a major mental disorder. When
    he interviewed defendant, Dr. Mohandie found no evidence of bipolar disorder,
    although such symptoms would have been expected despite his medication. Nor
    did he see any indication of such symptoms on the videotape of defendant’s police
    interview, which occurred after he had stopped using medication.
    16
    Accordingly, Dr. Mohandie believed defendant was legally sane at the time
    of the killing. As he explained, in defendant’s interviews with him, defendant
    disclaimed any overt symptoms of mental illness, such as voices, delusions, or
    hallucinations. He had a very specific memory of all events leading up to the
    killing, and his behavior after the killing, which involved some cleaning up and
    avoiding detection, was inconsistent with a failure to recognize his conduct was
    wrongful. His claim of amnesia surrounding the moment of the killing seemed
    “unlikely” to Dr. Mohandie. Instead, Dr. Mohandie believed, defendant suffered
    from an antisocial personality with narcissistic traits, which caused him to commit
    the “garden variety violence” of killing a woman who he believed had treated him
    poorly. Dr. Mohandie also rejected the diagnosis of intermittent explosive
    disorder, which he found inconsistent with the purposeful, motivated behavior
    displayed in the killing.
    C. Penalty Phase Evidence
    1. Prosecution case in aggravation
    Because the original jury deadlocked during the initial penalty phase, this
    proceeding was tried to a newly-selected jury. Given the new jury, the
    prosecution presented essentially the same evidence regarding Epperson’s killing
    that was presented during the guilt phase, including testimony by the same
    percipient witnesses about the circumstances leading to the killing, the blood
    spatter, autopsy, and DNA evidence, Charles Vannoy’s interview with police
    about defendant’s statements and conduct afterward, and the two prior assault
    victims.
    In addition, the prosecution presented two witnesses familiar with
    Epperson’s life prior to meeting defendant. Bette Ruiz de Esparza is the mother of
    Paul Grano, who was married to Epperson. She testified that Epperson’s mother,
    17
    apparently an alcoholic, abandoned her when Epperson was a teenager. Ruiz de
    Esparza and her son took Epperson in, looked after her, and treated her like
    family. Grano, eight years older than Epperson, eventually married her, and they
    had a child together. Both Grano and Epperson struggled with drug abuse, and
    Epperson was in and out of treatment and jail for a significant period. In the year
    or two before her death, however, Epperson “sounded real positive, and her life
    was going good.” Although Epperson and Grano had separated at some earlier
    time, “they were getting back together” at the time of her death. During the
    separation, they had remained good friends, and Grano was “broken-hearted” by
    her death.
    Ruth Steward was a lay minister at Epperson’s Church, which was located
    on “skid row,” across the street from Weingart Center. She had known Epperson
    for about a year prior to her death and was proud of Epperson’s strength, positive
    attitude, and determination. During the year Steward knew her, Epperson was
    drug-free. Steward was deeply affected by her “senseless” death.
    2. Defense case in mitigation
    Through the testimony of defendant’s mother and two sisters, the defense
    provided evidence of defendant’s difficult family life and history of violence.
    Both of defendant’s parents, Joyce and Joe Powell, came from homes marked by
    alcohol abuse. Joyce’s parents were alcoholics, and her father sexually abused her
    before she was ten years old. Joe’s mother also drank heavily, and he was raised
    largely in a variety of foster homes. The couple married young.
    Defendant’s younger sister, Montana, characterized Joe as a “monster.” He
    was emotionally and physically abusive to Joyce and all four children. As
    Montana said, “If we went to Disneyland or something, he still would find a way
    to make us feel bad.” When defendant was two years old and threw an older boy
    18
    to the ground, Joe picked defendant up and threw him into a pole. Six months
    later, defendant began having violent seizures. For seven years, he was given
    medication to control the seizures. Over the years, defendant’s behavior would
    occasionally trigger other angry responses from Joe, one time causing neighbors to
    call the police. According to Joyce, similar incidents occurred “every time [Joe]
    came home and was angry.” If Joyce attempted to intervene, Joe turned his anger
    on her.
    The family lived in fear of Joe. Defendant’s older brother became so angry
    with Joe that he once waited with a gun for him to return home, planning to kill
    Joe. Only his older sister’s intervention prevented the confrontation.
    Defendant’s first suicide threat occurred when he was thirteen years old.
    Around this time, Joyce said, “he was never actually really happy.” His older
    sister recalled discovering him carrying a gun in a duffel bag, planning to harm
    either himself or Joe. She talked him out of it.
    Defendant’s first violent outburst occurred before his eighteenth birthday
    when, in anger over a girlfriend, he attacked Montana with a lead pipe while she
    was sleeping. Afterwards, defendant had no memory of the incident. Although
    Joyce attempted to get him counseling, Joe refused to pay for it. After a bout of
    drinking when defendant was 22-years old, he became enraged when Joyce told
    him she had no money to give him, and he threw her across the room, breaking a
    vertebrae in her back. At some point he also assaulted his older sister when she
    attempted to rouse him from a drunken stupor, pushing her down the stairs and
    ripping a mirror from her car. Both Joyce and his sisters testified that defendant
    would at times go into a state of vacant, uncontrolled rage. As his older sister
    testified, “It’s like he’s doing things but he doesn’t know he’s doing them, but he’s
    doing them.”
    19
    Joyce viewed such conduct as uncharacteristic, testifying that defendant
    was a “caring and loving person” who was protective of others. They are very
    close, and she does not fear him. Defendant’s older sister also testified that she
    was close to him and believed he “had a big heart,” despite his anger.
    In addition to testimony by defendant’s family and friends, both childhood
    and adult, defendant presented the testimony of the same four psychiatric experts
    who testified during the sanity phase. Although different in some details, the
    testimony was materially the same.
    3. Prosecution rebuttal case
    In rebuttal, the prosecution also presented the testimony of Drs. Griesemer
    and Mohandie, which was materially the same as their testimony from the sanity
    phase.
    4. Defense surrebuttal
    In surrebuttal, the defense presented Richard Romanoff, Ph.D., a clinical
    and forensic psychologist who had met with defendant for thirteen or fourteen
    hours. Dr. Romanoff believed defendant suffers from a “complex set of mental
    disorders,” beginning with “organic impairment,” or abnormal brain function.
    This was compounded by the dysfunctional family circumstances during his
    youth, in which his “whole world [was] organized around fear of aggression and
    seeing people being victims of aggression.” Dr. Romanoff agreed with the
    diagnosis of intermittent explosive disorder and criticized Dr. Mohandie’s contrary
    view as “incomplete.”
    20
    II. DISCUSSION
    A. Guilt Phase Claims
    1. The Ireland merger doctrine does not bar defendant’s convictions
    for torture-murder and mayhem-murder
    The trial court instructed the jury that it could convict defendant of first
    degree murder either by finding that Epperson’s killing was done intentionally
    with premeditation and deliberation or that it occurred during the commission or
    attempted commission of, among other charged felonies, mayhem or torture. In
    People v. Ireland (1969) 
    70 Cal. 2d 522
    (Ireland), we held that the crime of assault
    with a deadly weapon cannot be used as the sole predicate crime for a second
    degree felony-murder conviction because, when a firearm is used in a killing, such
    an assault is “an integral part of the homicide.” (Id., at p. 539.) Defendant
    contends that the Ireland holding, which has come to be known as the “ ‘merger’
    doctrine” (id., at p. 540), should be applied here to preclude a verdict of first
    degree murder in the course of the crimes of mayhem or torture because the
    commission of these crimes was, in defendant’s characterization, an integral part
    of his brutal heat of passion killing. We find the argument unpersuasive.
    “ ‘The felony-murder rule makes a killing while committing certain
    felonies murder without the necessity of further examining the defendant’s mental
    state.’ [Citation.] ‘Under the felony-murder doctrine, when the defendant or an
    accomplice kills someone during the commission, or attempted commission, of an
    inherently dangerous felony, the defendant is liable for either first or second
    degree murder, depending on the felony committed. If the felony is listed in
    section 189, the murder is of the first degree; if not, the murder is of the second
    degree.’ ” (People v. Bryant (2013) 
    56 Cal. 4th 959
    , 965.)
    The defendant in Ireland was convicted of second degree murder after he
    shot his wife in the course of an argument in their home. (Ireland, supra, 70
    21
    Cal.2d at p. 528.) The jury had been instructed that it could convict the defendant
    of second degree murder if the killing occurred during the commission of a felony
    inherently dangerous to human life, expressly including assault with a deadly
    weapon. (Id., p. 538.) In reversing, we concluded, “[t]o allow such use of the
    felony-murder rule would effectively preclude the jury from considering the issue
    of malice aforethought in all cases wherein homicide has been committed as a
    result of a felonious assault — a category which includes the great majority of all
    homicides. . . . We therefore hold that a second degree felony-murder instruction
    may not properly be given when it is based upon a felony which is an integral part
    of the homicide and which the evidence produced by the prosecution shows to be
    an offense included in fact within the offense charged.” (Id., at p. 539 [first italics
    added, second italics in original, footnote omitted].)
    In two subsequent decisions, we extended this doctrine to preclude
    convictions for first degree felony murder premised on a killing during the course
    of a burglary when the intended felony underlying the burglary was the assault
    that led to the homicide. (People v. Sears (1970) 
    2 Cal. 3d 180
    , 188-189 (Sears);
    People v. Wilson (1969) 
    1 Cal. 3d 431
    , 440 (Wilson) [precluding application of the
    felony-murder rule when “the entry would be nonfelonious but for the intent to
    commit the assault, and the assault is an integral part of the homicide”].)
    Although second degree felony murder is grounded in an interpretation of
    section 188, no statute specifically addresses second degree felony murder.
    (People v. Chun (2009) 
    45 Cal. 4th 1172
    , 1182-1183.) In contrast, first degree
    felony murder, along with the predicate crimes underlying it, is expressly
    described in section 189. Citing this distinction in People v. Farley (2009) 
    46 Cal. 4th 1053
    (Farley), we reconsidered and disapproved the extension of the
    merger doctrine to first degree felony murder. As Farley reasoned, “ ‘ “ ‘the
    power to define crimes and fix penalties is vested exclusively in the legislative
    22
    branch.’ [Citation.]” ’ [Citation.] The courts may not expand the Legislature’s
    definition of a crime [citation], nor may they narrow a clear and specific
    definition. In the context of second degree felony murder, courts must interpret
    section 188’s reference to an ‘ “abandoned and malignant heart.” ’ [Citation.] In
    the context of first degree felony murder, however, there is no need for
    interpretation of the Legislature’s clear language. Thus, the differences between
    the statutory bases for first and second degree felony murder support the
    conclusion that although this court properly may limit the breadth of second
    degree felony murder in a manner consistent with its interpretation of the
    Legislature’s intent, there is no room for interpretation when the Legislature has
    defined first degree felony murder to include any killing ‘committed in the
    perpetration of, or attempt to perpetrate, . . . burglary.’ ” (Id., at p. 1119.)
    The rationale of Farley requires us to reject defendant’s argument.
    Although Farley was concerned with felony murder based on burglary, its
    rationale applies equally to all of the predicate felonies expressly listed in section
    189. Even prior to Farley, we had never applied the merger doctrine to first
    degree felony murder premised on a predicate crime other than burglary. (See
    People v. Gonzales (2011) 
    51 Cal. 4th 894
    , 942 [“our preexisting jurisprudence had
    limited Wilson to cases of burglary felony murder where the defendant’s only
    felonious purpose was to assault or kill the victim”].) We have declined to apply
    Farley to cases involving convictions for first degree felony murder premised on
    burglary that were committed prior to the issuance of that decision in order to
    avoid retroactivity concerns (People v. Covarrubias (2016) 1 Cal.5th 838, 882;
    
    Farley, supra
    , 46 Cal.4th at p. 1121), but there is no risk of an ex post facto
    violation in the circumstances presented here. Because we have never suggested
    that the merger doctrine applies to murders premised on torture and mayhem,
    precluding that application on the rationale of Farley does not constitute “an
    23
    unforeseeable judicial enlargement of a criminal statute.” (Farley, at p. 1121;
    People v. Blakely (2000) 
    23 Cal. 4th 82
    , 91 [“an unforseeable judicial enlargement
    of a criminal statute, applied retroactively, operates in the same manner as an ex
    post facto law”].) Given the absence of any indication in our prior decisions that
    first degree murder premised on torture or mayhem is subject to the merger
    doctrine, and given our failure to extend the doctrine, over the course of thirty
    years at the time of defendant’s crimes, to any first degree felony murder other
    than one premised on the type of burglary involved in Sears and Wilson, our
    refusal to extend the doctrine to torture and mayhem is not a legal result “ ‘that the
    accused could not have foreseen at the time of the alleged criminal conduct.’ ”
    (People v. Whitmer (2014) 
    59 Cal. 4th 733
    , 742.) Accordingly, we hold that
    defendant’s argument fails because the merger doctrine is inapplicable to first
    degree felony murder.
    2. The evidence was sufficient to support defendant’s conviction for
    torture murder
    Defendant contends there was insufficient evidence before the jury to
    support the torture conviction, the first degree torture-murder conviction, and the
    special circumstance finding based on that theory.
    “When considering a challenge to the sufficiency of the evidence to support
    a conviction, we review the entire record in the light most favorable to the
    judgment to determine whether it contains substantial evidence — that is, evidence
    that is reasonable, credible, and of solid value — from which a reasonable trier of
    fact could find the defendant guilty beyond a reasonable doubt.” (People v.
    Lindberg (2008) 
    45 Cal. 4th 1
    , 27 (Lindberg).) In so doing, a reviewing court
    “presumes in support of the judgment the existence of every fact the trier could
    reasonably deduce from the evidence.” (People v. Kraft (2000) 
    23 Cal. 4th 978
    ,
    1053.) The same standard of review applies to the sufficiency of the evidence
    24
    supporting special circumstance findings. (People v. Chatman (2006) 
    38 Cal. 4th 344
    , 389.)
    “ ‘All murder which is perpetrated by means of . . . torture . . . is murder of
    the first degree.’ (§ 189.) Murder by torture requires (1) an act or acts causing
    death that involve a high degree of probability of death, (2) a causal relationship
    between the torturous act and death, (3) a willful, deliberate, and premeditated
    intent to inflict extreme and prolonged pain on a person for the purpose of
    revenge, extortion, persuasion, or for any other sadistic purpose, and (4)
    commission of the act or acts with such intent.” (People v. Edwards (2013) 
    57 Cal. 4th 658
    , 715-716 (Edwards).) The elements of a torture-murder special
    circumstance (§ 190.2, subd. (a)(18)) are similar but not identical. “To prove that
    special circumstance allegation, the prosecution had to establish that ‘defendant
    intended to kill and had a torturous intent, i.e., an intent to cause extreme pain or
    suffering for the purpose of revenge, extortion, persuasion, or another sadistic
    purpose.’ ” (People v. Brooks (2017) 3 Cal.5th 1, 65 (Brooks).)
    In a sufficiency of the evidence challenge to a torture-murder conviction or
    special circumstance finding, the focus is generally on “defendant’s torturous
    intent.” 
    (Brooks, supra
    , 3 Cal.5th at p. 65.) The perpetrator must intend to
    “ ‘ “cause pain and suffering in addition to death.” ’ ” 
    (Edwards, supra
    , 
    57 Cal. 4th
    at p. 716.) Torturous intent “ ‘is a state of mind which, unless established by
    the defendant’s own statements (or by another witness’s description of a
    defendant’s behavior in committing the offenses), must be proved by the
    circumstances surrounding the commission of the offense [citations], which
    include the nature and severity of the victim’s wounds.’ ” (People v. Smith (2015)
    
    61 Cal. 4th 18
    , 52.) In this regard, “evidence that the defendant intentionally
    inflicted nonlethal wounds on the victim may demonstrate the requisite ‘ “sadistic
    intent to cause the victim to suffer pain in addition to the pain of death.” ’ ”
    25
    (Hajek and 
    Vo, supra
    , 58 Cal.4th at p. 1188.) Such wounds support a finding of
    intent because they “evidence[] deliberate and gratuitous violence beyond that
    which was necessary to kill the victim.” (Ibid.) The focus, as noted, is on
    defendant’s intent to inflict pain and suffering, which is “at the heart of” torture
    murder. (People v. Davenport (1985) 
    41 Cal. 3d 247
    , 268 (Davenport).) It need
    not be demonstrated that that the victim was actually conscious and suffered pain
    at the time otherwise painful injuries were inflicted. 
    (Brooks, supra
    , 3 Cal.5th at
    p. 67.)
    Our most recent decision addressing the evidence necessary to support a
    torture-murder conviction is Brooks, in which we affirmed both a torture-murder
    conviction and special circumstance finding. The defendant in Brooks developed
    a jealous, possessive attitude toward the victim, with whom he was having a
    romantic affair. 
    (Brooks, supra
    , 3 Cal.5th at pp. 17, 66.) He came to believe she
    was having a sexual relationship with another man and began spying on her. One
    day after she left that man’s home, the defendant confronted her, strangled her into
    unconsciousness, placed her in her car, and, aware that she was still alive, set her
    and the car on fire. (Id., at p. 66.) We concluded that “a reasonable jury could
    infer from evidence of defendant’s intense possessiveness and all-consuming
    suspicions . . . , coupled with his dousing her and her car with accelerant and
    lighting them on fire, that defendant intended to inflict severe pain on [the victim]
    for the purpose of revenge.” (Id., at pp. 66-67.)
    In this case, the jury could have concluded that defendant became similarly
    obsessed with Epperson, thereby satisfying the “purpose” element of torture
    murder. He told Todd that he loved her and said “If I can’t have her, nobody will,
    I’ll kill her and myself.” He was concerned that she might be seeing other men,
    began to appear uninvited at her place of work, and telephoned her persistently.
    By defendant’s own testimony, the immediate cause of the assault on Epperson
    26
    was a phone call that she took from another man, whom she refused to identify,
    during which she made social plans. When this caused an argument, Epperson
    told defendant they were “done.” Feeling “crushed,” he hit her. As related earlier,
    defendant told Charles Vannoy that he instructed Epperson to sit on the toilet and
    then hit her with a candle holder. As he began beating her, Epperson asked why
    he was doing it. He told her, “All I wanted you to do was to love me, you know,
    and you wouldn’t do that.” Accordingly, defendant’s own account of the killing,
    as well as the circumstances surrounding the crime, provide substantial evidence
    to support a finding that his purpose in assaulting her was revenge for Epperson’s
    romantic rejection.
    The testimony and forensic evidence further demonstrated that defendant
    engaged in far more violence than that necessary to kill Epperson, some of it
    unrelated to any attempt to kill, which provided substantial evidence to support a
    finding that he intended to inflict extreme and prolonged pain. The beating alone
    was savage and beyond that necessary to cause death. Defendant struck Epperson
    repeatedly in the bathroom, carried her into the living room, and then beat her with
    several different objects, striking with such force that each item was broken into
    pieces and flattening the features of her face. In addition, he used broken glass to
    inscribe cuts into both sides of her neck and the left side of her face and drove a
    screwdriver or ice pick into her face. Finally, defendant inflicted wounds to
    Epperson’s vaginal area of a severity the coroner found to be “very rare[].” While
    some vaginal injury might be expected from a rape, the injuries inflicted on
    Epperson were extreme, suggesting an intent to inflict suffering beyond that
    caused by the violation of rape. As the coroner testified, the majority of these
    injuries, perhaps as much as 95 percent, occurred while Epperson was still alive.
    In short, there was substantial evidence from which a reasonable jury could
    have concluded that defendant, motivated by revenge for Epperson’s rejection of
    27
    him as a romantic partner, chose to inflict extreme pain and suffering on her,
    causing the dreadful injuries from which she eventually died.3
    The same evidence supports the jury’s true finding of the special
    circumstances allegation, which requires an intent to kill and an intent “ ‘to cause
    extreme pain or suffering for the purpose of revenge, extortion, persuasion, or
    another sadistic purpose.’ ” 
    (Brooks, supra
    , 3 Cal.5th at p. 65.) Defendant’s own
    statements to Vannoy and the extreme nature of the beating provide adequate
    evidentiary support for a finding of intent to kill.
    Defendant properly argues that the severity of Epperson’s wounds cannot
    be the sole evidence to support a finding of torturous intent. (See, e.g., People v.
    Gonzales (2012) 
    54 Cal. 4th 1234
    , 1273 [“Horrible wounds may be as consistent
    with a killing in the heat of passion or an explosion of violence, as with the intent
    to inflict cruel suffering”].) But it is not so much the severity of Epperson’s
    wounds, as their nature, that supports a finding of intent to inflict pain and
    suffering here. Defendant used three separate heavy objects to bludgeon
    Epperson, discarding each in turn as it broke into pieces, and presumably
    continued the beating long after she was rendered unconscious.4 He gratuitously
    cut both sides of her face and drove a sharp object into it, and inflicted severe
    injuries to the area around her vagina. The nonfatal but undoubtedly painful
    3      Defendant concedes that if the intent element of torture murder is supported
    by the evidence, his conviction for torture, apart from torture murder, is supported
    by the evidence.
    4      Defendant contends there is no reason to believe these objects were used
    “in so skillful a manner as to deliberately impose pain and suffering — but not
    death,” but there is no requirement that a defendant calculate each of his or her
    blows so as to cause suffering without death.
    28
    injuries, particularly, evidenced an intent to inflict pain apart from an inevitably
    fatal beating.
    Defendant also argues the evidence was consistent with a killing due to an
    “ ‘explosion of violence’ ” 
    (Davenport, supra
    , 41 Cal.3d at p. 268), rather than an
    intent to torture. He cites People v. Anderson (1965) 
    63 Cal. 2d 351
    (Anderson), in
    which the defendant killed a young girl who may have resisted an attempted
    sexual assault. The manner of the homicide — the infliction of more than 40 knife
    wounds — was certainly consistent with an intent to inflict pain and suffering (id.,
    at p. 355), but the court found insufficient evidence to support a conviction for
    torture murder. The court explained that the record lacked sufficient evidence of
    “the requisite intent,” but its subsequent discussion made clear that the term
    “intent” in that phrase refers to purpose or motive — that is, the infliction of pain
    and suffering “for the purpose of revenge, extortion, persuasion, or for any other
    sadistic purpose.” 
    (Edwards, supra
    , 57 Cal.4th at pp. 715, 723.) Because there
    was no evidence to suggest the Anderson defendant had a proscribed purpose in
    inflicting the wounds, the court held, “the instant case shows only an explosion of
    violence.” (Anderson, at p. 360.) A similar result was reached in People v.
    Mungia (2008) 
    44 Cal. 4th 1101
    , in which the Attorney General “d[id] not contend
    that defendant was motivated by revenge, extortion, or persuasion” and sought to
    demonstrate a “ ‘ “sadistic intent to cause the victim to suffer pain in addition to
    the pain of death” ’ ” merely on the basis of the defendant’s delivery of repeated
    blows to the victim’s head. (Id., at p. 1136.) In that case we found insufficient
    evidence to support a torture-murder special circumstance, concluding “[t]he
    killing was brutal and savage, but there is nothing in the nature of the injuries to
    suggest that defendant inflicted any of them in an attempt to torture [the victim]
    rather than to kill her.” (Id., at p. 1137.)
    29
    That is simply not the case here. First, there was substantial evidence from
    which the jury could reasonably have found that defendant was motivated by
    revenge, beginning with his acknowledgment that he first struck Epperson because
    she had terminated their relationship. Second, as discussed above, defendant’s
    infliction of gratuitous injuries in addition to the fatal beating provided substantial
    evidence of an intent to inflict pain and suffering for their own sake.5
    3. The evidence was sufficient to support defendant’s conviction for
    rape-murder
    Defendant contends there was insufficient evidence to support the rape
    conviction, the rape-murder theory of first degree felony murder, and the special
    circumstance finding based on that theory.
    A homicide “committed in the perpetration of, or attempt to perpetrate . . .
    rape” is first degree murder. (§ 189; People v. Berryman (1993) 
    6 Cal. 4th 1048
    ,
    1086.) Forcible rape is “an act of sexual intercourse accomplished . . . [¶] . . .
    [¶] . . . against a person’s will by means of force, violence, duress, menace, or
    fear of immediate and unlawful bodily injury on the person or another.” (§ 261,
    subd. (a)(2); People v. Harris (2013) 
    57 Cal. 4th 804
    , 850.) A rape-murder
    special-circumstance finding requires the homicide to be committed while the
    defendant was engaged in the commission of, or attempted commission of, rape.
    (§ 190.2, subd. (a)(17)(C); People v. Lewis (2009) 
    46 Cal. 4th 1255
    , 1292 (Lewis).)
    5        Defendant also cites People v. Leach (1985) 
    41 Cal. 3d 92
    , in which we
    reversed a torture-murder special-circumstance finding because the jury was not
    instructed that intent to inflict pain and suffering was an element of the finding.
    (Id., at pp. 109-110.) We declined to affirm in spite of the error because the
    evidence did not demonstrate intent to inflict pain “ ‘as a matter of law,’ ” noting
    the “strong evidence of intent to kill militates to some extent against a finding of
    intent to inflict pain.” (Id., at p. 110.) Because the jury was properly instructed
    here, the evidence need not demonstrate intent to inflict pain as a matter of law.
    Leach has no application.
    30
    As noted above, we review the jury’s verdict for substantial evidence. 
    (Lindberg, supra
    , 45 Cal.4th at p. 27.)
    There was substantial evidence of forcible rape here. Defendant’s DNA
    was found in a vaginal swab, and his sperm was found in and outside Epperson’s
    vagina. When her body was discovered, Epperson was still wearing a sweatshirt,
    blouse, and bra on her upper body, but her lower body was nude, a pattern
    consistent with forced intercourse. 
    (Lewis, supra
    , 46 Cal.4th at p. 1290.) In
    addition, her brassiere had been pushed above her nipples. Blood stains on her
    jeans, which were found lying near her body, suggested that defendant had, with
    bloody fingers, unbuttoned the pants, put his hands inside the pockets, and pulled
    the pants off, and the blood stains on the inner surface of Epperson’s thighs were
    consistent with the forcing apart of her legs. The medical examiner found the
    degree of trauma to Epperson’s vaginal area “very rare[],” caused by “the blunt
    force penetration either by a penis with a lot of force or other kind of object of
    similar shape and size.” From these facts, the jury readily could have concluded,
    beyond a reasonable doubt, that Epperson had forced intercourse and that her
    death occurred while defendant was engaged in this rape.
    Defendant’s argument to the contrary focuses on the fact that Epperson’s
    jeans were found lying on top of her panties, the reverse of what would be
    expected if defendant had removed her clothing, and the testimony of a defense
    forensic expert who examined a liner in the panties and concluded it was likely she
    had not worn them. This evidence, defendant argues, suggests that Epperson was
    not wearing clothing on her lower body at the time the assault began. Defendant’s
    interpretation of the forensic evidence, however, fails to account for the unusual
    blood stains on her jeans, which suggest that they were removed after both
    Epperson and defendant had been bloodied. If she were not wearing jeans at the
    time of the assault, there would be no explanation for the blood stains in her
    31
    pockets. It may simply be that Epperson was wearing the jeans without
    underwear, a circumstance that would also explain how the jeans ended up on top
    of the panties. Defendant’s interpretation also ignores the pattern of blood stains
    on her thighs and the severe trauma to her genitals. In any event, that Epperson
    might not have been clothed from the waist down is not inconsistent with a
    forcible rape.
    Noting that he testified to having had voluntary intercourse with Epperson
    prior to the assault, defendant argues that Epperson’s vaginal trauma could have
    been the result of consensual sexual intercourse between a relatively small woman
    and a very large man.6 It is unlikely, however, that Epperson would willingly
    have endured intercourse that caused vaginal injury as severe as that found by the
    medical examiner. In any event, the totality of the evidence provides substantial
    evidence of rape, notwithstanding the possibility of an alternate explanation.
    Defendant contends these circumstances are comparable to those in People
    v. Craig (1957) 
    49 Cal. 2d 313
    (Craig), and 
    Anderson, supra
    , 
    70 Cal. 2d 15
    , in
    which the evidence was found insufficient to support first degree felony-murder
    convictions based on rape. Both cases are distinguishable. In Craig, the victim
    had been beaten to death. When found, her body was dressed in a slip or
    nightgown, covered by a raincoat. Her panties, which had been found underneath
    the body, were torn open. (Id., at p. 316.) Yet the court in Craig found
    insufficient evidence to support a rape-murder conviction because,
    notwithstanding the suggestive condition of the victim’s clothing, neither the
    defendant’s nor the victim’s clothing “bore any evidence of the sexual act” (id., at
    p. 318), and there was no other evidence to suggest sexual intercourse had
    6       At the time of the killing, defendant was between 6 feet, three inches and 6
    feet, four inches tall and weighed about 280 pounds.
    32
    occurred. (Ibid.) In Anderson, as noted above, the victim had been stabbed to
    death. Her body was nude, and the crotch had been cut from her underwear. (Id.,
    at pp. 20-21.) Again, the court found insufficient evidence to support a charge
    under section 288 of lewd and lascivious conduct with a child under the age of 14
    years because there was no physical evidence of sexual contact or any evidence
    that the defendant harbored sexual feelings toward the victim or had ever engaged
    in lewd conduct with her. (Id., at pp. 35-36.) In contrast with these cases, the
    state of Epperson’s clothing was not the only evidence supporting the charge of
    rape. As discussed above, there was no question defendant had sexual intercourse
    with Epperson, and there was substantial forensic evidence to support the charge
    that the intercourse had occurred by force and against her will.7
    4. The trial court’s admission of gang affiliation evidence during the
    guilt phase was harmless
    Defendant contends the trial court committed prejudicial error in permitting
    the introduction of evidence during the guilt phase that he had been affiliated in
    prison with a white supremacist gang and that he had tattoos suggesting racist
    sympathies. He also argues that the prosecutor committed misconduct in eliciting
    some of this evidence.
    Epperson was Caucasian. Around the time she met defendant, Epperson
    had broken off her romantic relationship with Sims, an African-American, but the
    7      Defendant also contends his conviction for premeditated first degree
    murder was not supported by substantial evidence. Because we have concluded
    that substantial evidence supports defendant’s first degree murder conviction on
    the theories of torture murder and rape murder, and because defendant has not
    challenged the sufficiency of the evidence supporting the theory of mayhem-
    murder, we need not, and do not, address the sufficiency of the evidence
    supporting the charge of premeditated first degree murder. (See Hajek and 
    Vo, supra
    , 58 Cal.4th at p. 1192, fn. 20.)
    33
    two remained friends, and defendant was aware of their relationship. On the
    morning of the day Epperson was killed, defendant saw her talking to Sims outside
    her church.
    Although Sims and defendant had lived in the same building during two
    years of rehabilitation, they had never formally met or spoken. When Sims
    testified that he felt “intimidated” by defendant because defendant was a “white
    supremacist,” the trial court struck this testimony and admonished the jury to
    disregard it. Timothy Todd, Epperson’s friend and assistant at her workplace,
    later testified, without objection, that defendant, “on several occasions,” said that
    “he would kill that nigger [Sims] if he kept trying to see” Epperson.
    During the cross-examination of defendant, he acknowledged, without
    explanation, that he “had a problem” with Sims because of “what he did to”
    Epperson. When defendant denied being a “racist” and disliking Sims because he
    was an African-American, the prosecutor was permitted to introduce, over
    objection, photographs of defendant’s tattoos, two of which read, “White Pride”
    and “White Anger.” Defendant said he had gotten the tattoos “years ago” in
    prison.
    During the prosecution’s rebuttal case, the trial court permitted the
    introduction of gang-related statements made by defendant’s friend, Charles
    Vannoy, during his police interview. The jury therefore heard Vannoy describe
    himself as a one-time member of the Aryan Brotherhood, although he had since
    left the group. Vannoy acknowledged having tattoos, one of which was a
    swastika, and said he was aware defendant did not like Sims, whom the
    interviewer had referred to as Epperson’s “Black boyfriend.” In closing argument,
    neither attorney mentioned the tattoos or gang evidence.
    We review a trial court’s decision to admit or exclude evidence “for abuse
    of discretion, and [the ruling] will not be disturbed unless there is a showing that
    34
    the trial court acted in an arbitrary, capricious, or absurd manner resulting in a
    miscarriage of justice.” (People v. Wall (2017) 3 Cal.5th 1048, 1069.) When
    evidence is erroneously admitted, we do not reverse a conviction unless it is
    reasonably probable that a result more favorable to the defendant would have
    occurred absent the error. (People v. Watson (1956) 
    46 Cal. 2d 818
    , 836; see
    People v. Covarrubias (2016) 1 Cal.5th 838, 887-888 (Covarrubias) [Watson
    standard applies in evaluating prejudice from state law error in admitting
    evidence].) We apply a similar standard of prejudice when considering a claim of
    prosecutorial misconduct. (E.g., People v. Peoples (2016) 
    62 Cal. 4th 718
    , 798-
    799, 804.)
    We need not address the propriety of the trial court’s admission of this
    evidence or the prosecutor’s conduct in eliciting it during the guilt phase because
    any error in its admission was harmless. The evidence of defendant’s guilt was
    very strong. There was no question that he was the killer. The forensic evidence
    powerfully revealed the manner of Epperson’s death, and the testimony, including
    defendant’s own testimony, provided ample evidence of the obsession that appears
    to have motivated the crimes. At most, the evidence of defendant’s possible racist
    sympathies would have provided an additional reason for the intensity of his anger
    at the time of the killing. Defendant’s gang membership was therefore largely
    irrelevant to the issues before the jury in the guilt phase, and any negative reaction
    the jurors might have had to the gang evidence would not have had a significant
    influence on their evaluation of the evidence.
    Nor do we conclude, for similar reasons, that any misconduct by the
    prosecutor in eliciting this testimony “infect[ed] the trial with such unfairness as to
    make the conviction a denial of due process.” (People v. Seumanu (2015) 
    61 Cal. 4th 1293
    , 1331.)
    35
    Defendant argues admission of the evidence was “inherently prejudicial”
    because it created a risk the jury would improperly infer defendant has a criminal
    disposition and is therefore guilty of the offense charged, citing People v. Williams
    (1997) 
    16 Cal. 4th 153
    , 193 (Williams). Whether defendant had a “criminal
    disposition” was rendered moot by the strength of the evidence bearing on his
    guilt. Concerns about the possible “inflammatory impact” of this type of evidence
    (id., at p. 193) were similarly alleviated by the nature of the evidence of
    defendant’s guilt.8
    5. The special circumstance findings of torture murder and mayhem
    murder are supported by the evidence
    Defendant argues that the jury’s torture-murder and mayhem-murder
    special-circumstance findings were not supported by sufficient evidence because
    he had no “independent felonious purpose” in committing the predicate crimes.
    (People v. Green (1980) 
    27 Cal. 3d 1
    , 61 (Green.) According to defendant, the
    acts of torture and mayhem were, in effect, a means to the end of killing Epperson,
    rather than ends in themselves.9
    The requirement of an independent felonious purpose applies to felony-
    murder special-circumstance findings under section 190.2, subdivision (a)(17).
    (People v. Coffman and Marlow (2004) 34 Cal 4th 1, 87.) This subdivision
    authorizes a special circumstance finding when the murder “was committed while
    8       We also reject defendant’s contention that the introduction of this evidence
    in the guilt phase violated his right to due process, since any error in the admission
    of this evidence was harmless beyond a reasonable doubt. (Chapman v. California
    (1967) 
    386 U.S. 18
    , 24.)
    9       Although a heading in defendant’s brief asserts that this argument is
    addressed to “all” of the special circumstance findings, he concedes in a footnote
    that the argument actually applies only to the torture-murder and mayhem-murder
    special-circumstance findings.
    36
    the defendant was engaged in . . . the commission of [or] the attempted
    commission of ” various other specified felonies. (§ 190.2, subd. (a)(17).) Section
    190.2 was enacted in response to United States Supreme Court decisions requiring
    that a jury’s discretion in imposing the death penalty be “suitably directed and
    limited so as to minimize the risk of wholly arbitrary and capricious action.”
    (Gregg v. Georgia (1976) 
    428 U.S. 153
    , 189; 
    Green, supra
    , 27 Cal.3d at p. 61.)
    With respect to the felony-murder special circumstances, Green explained that the
    Legislature found it appropriate for the jury to consider a penalty of death when a
    defendant “killed in cold blood in order to advance an independent felonious
    purpose.” (Id., at p. 61.) The Legislature’s goal, Green concluded, would not be
    achieved “when the defendant’s intent is not to [commit the predicate felony] but
    to kill and the [predicate crime] is merely incidental to the murder . . . because [the
    predicate crime’s] sole object is to facilitate or conceal the primary crime,” i.e., the
    murder. (Ibid.) In the intervening years, these phrases from Green, “independent
    felonious purpose” and “merely incidental,” have become talismanic, but they
    remain useful concepts that give meaning to the statutory requirement that the
    murder occurred “in the commission of” the predicate felony. They are not
    separate and independent requirements for a felony-murder special circumstance.
    
    (Brooks, supra
    , 3 Cal.5th at p. 117.)
    Although defendant raises this claim with respect to both the torture-murder
    and mayhem-murder special-circumstance findings, we have never required an
    independent felonious purpose to support a special-circumstance finding for
    torture murder. From its inception, section 190.2 has codified the special
    circumstance for a murder involving torture separately from the felony-murder
    special circumstances. (See 
    Green, supra
    , 27 Cal.3d at p. 49.) At the time of
    defendant’s crimes, as today, the felony-murder special circumstances were
    codified in section 190.2, subdivision (a)(17). A different subdivision defines the
    37
    torture-murder special circumstance, permitting the finding when “[t]he murder
    was intentional and involved the infliction of torture.” (§ 190.2, subd. (a)(18).)
    Because subdivision (a)(18) lacks the requirement that the murder be committed
    while the defendant was “engaged in . . . the commission of” torture, the
    requirement of an independent felonious purpose, which implements this
    language, does not apply to a torture-murder special circumstance. Defendant
    provides no reason for questioning this conclusion, which follows directly from
    the statutory language. His argument therefore provides no basis for challenging
    the sufficiency of the evidence to support the torture-murder special-circumstance
    finding.
    The jury also found true the mayhem-murder special circumstance
    allegation, which is specified in Section 192, subdivision (a)(17). Mayhem
    requires, in very general terms, the intentional infliction of a maiming or
    disfiguring injury. (See People v. Santana (2013) 
    56 Cal. 4th 999
    , 1004-1005; §§
    190.2, subd. (a)(17)(J), 203.) Defendant has not challenged the sufficiency of the
    evidence to support his conviction for the crime of mayhem, and we have no
    reason to question the jury’s conclusion that, in the course of his assault, defendant
    intentionally inflicted disfiguring injuries on Epperson.10 In convicting defendant
    of the underlying crime of mayhem, the jury necessarily found that defendant
    possessed the specific intent to disfigure Epperson, which would have been
    independent of any intent to kill her. This independent purpose to disfigure
    10 The superfluous ragged gashes in Epperson’s neck, at a minimum, would
    qualify as intentional disfigurement. (See People v. Newble (1981) 
    120 Cal. App. 3d 444
    , 447, 449-450 [infliction of three-inch facial laceration likely to
    leave a permanent scar constitutes mayhem].)
    38
    provided adequate evidentiary support for the mayhem-murder special-
    circumstance finding.
    Defendant argues that he elected a particularly brutal method of murdering
    Epperson and his infliction of disfigurement upon her was an incidental
    consequence of his chosen manner of killing. Whether defendant simply used a
    brutal means to kill Epperson, or whether his brutality was part of an independent
    design to commit mayhem, was a factual determination for the jury to make. As
    discussed above, in convicting defendant of the underlying crime of mayhem, the
    jury necessarily found that defendant did possess that independent design.
    According to Charles Vannoy, at some point during the beating defendant
    admitted to Epperson that he planned to kill her. We have repeatedly held,
    however, that a defendant’s possession of the intent to kill concurrently with the
    intent necessary to support a predicate felony does not necessarily render
    commission of the predicate felony incidental to the murder. As explained in
    People v. Castaneda (2011) 
    51 Cal. 4th 1292
    , “ ‘a jury deciding the truth of the
    special circumstance allegation is not required to assign a hierarchy to the
    defendant’s motives in order to determine which of multiple concurrent intents
    was “primary,” but instead the jury need only determine whether commission of
    the underlying felony was or was not merely incidental to the murder.’ ” (Id., at
    pp. 1326-1327; see also, People v. Davis (2009) 
    46 Cal. 4th 539
    , 609 [“even if a
    defendant harbored the intent to kill at the outset, a concurrent intent to commit an
    eligible felony will support the special circumstance allegation”].) Evidence that
    defendant intended to kill Epperson at the time he committed mayhem did not
    preclude the jury from finding true the mayhem-murder special-circumstance
    allegation.
    39
    B. Sufficiency of the Evidence Supporting the Jury’s Verdict at the
    Sanity Trial.
    Defendant contends the jury’s finding that he was sane at the time of the
    killing must be reversed because “the evidence of insanity was of such weight and
    quality that a jury could not reasonably reject it.”
    “Under California’s statutory scheme, ‘[p]ersons who are mentally
    incapacitated’ are deemed unable to commit a crime as a matter of law. (§ 26, par.
    [2].) Mental incapacity under section 26 is determined by the M’Naghten test for
    legal insanity provided in section 25, subdivision (b). (M’Naghten’s Case (1843)
    8 Eng.Rep. 718, 722; People v. Phillips (2000) 
    83 Cal. App. 4th 170
    , 173; see Stats.
    2007, ch. 31, § 5, pp. 138–139.) Under M’Naghten, insanity is established if the
    defendant was unable either to understand the nature and quality of the criminal
    act, or to distinguish right from wrong when the act was committed.”11 (People v.
    Elmore (2014) 
    59 Cal. 4th 121
    , 140.)
    In a sanity trial, the burden is on the defendant to prove insanity by a
    preponderance of the evidence. (§ 25, subd. (b); People v. Hernandez (2000) 
    22 Cal. 4th 512
    , 521.) A defendant “may suffer from a diagnosable mental illness
    without being legally insane under the M’Naghten standard.” (People v. Mills
    (2012) 
    55 Cal. 4th 663
    , 672.)
    11      Section 25, subdivision (b), enacted by Proposition 8 in 1982, actually
    states that a person can be found insane only if “he or she was incapable of
    knowing or understanding the nature and quality of his or her act and of
    distinguishing right from wrong at the time of the commission of the offense.”
    (italics added.) In People v. Skinner (1985) 
    39 Cal. 3d 765
    , we held that
    Proposition 8 was intended to embody the traditional M’Naghten test, which holds
    that insanity is demonstrated if a defendant was unable to understand the nature
    and quality of the criminal act or to distinguish right from wrong when the act was
    committed. (Id., at p. 777.)
    40
    1. A finding of sanity is subject to the substantial evidence standard of
    review
    Before we address defendant’s sufficiency of the evidence argument on its
    merits, it is necessary to settle the standard of review. Defendant’s argument, that
    the jury’s sanity determination must be reversed because the expert evidence he
    presented “was of such weight and quality that a jury could not reasonably reject
    it,” is based on a misreading of People v. Drew (1978) 
    22 Cal. 3d 333
    (Drew). In
    that case, we adopted an alternative to the M’Naghten sanity test, a decision that
    was subsequently abrogated by the electorate with the 1982 passage of Proposition
    8, which re-adopted the M’Naghten test. (See People v. Skinner (1985) 
    39 Cal. 3d 765
    , 768-769.) In changing the sanity test in Drew, we also recognized that the
    defendant was entitled to review of the jury’s finding that he was sane under the
    M’Naghten standard, the standard prevailing at the time. (Drew, at p. 349.) As we
    noted, “Defendant Drew argues that even under the M’Naghten test the jury’s
    finding of sanity is not supported by substantial evidence. If Drew should prevail
    in this contention, he would be entitled to an order directing the trial court to find
    him insane, thus avoiding a retrial of the case” under the newly adopted test.
    (Ibid.) In undertaking a review of the jury’s finding, we confirmed, quoting
    People v. Wolff (1964) 
    61 Cal. 2d 795
    , 804, that the applicable standard of review
    was substantial evidence. (Drew, at p. 350.)
    The only evidence introduced at the sanity trial of Drew was the testimony
    of two court-appointed psychiatrists, both of whom opined that defendant was
    insane under M’Naghten. The prosecution presented no evidence at all. 
    (Drew, supra
    , 22 Cal.3d at pp. 338-339, 350.) In arguing for reversal of the finding of
    sanity, the defendant relied on the unchallenged unanimity of expert opinion. We
    explained, however, that a finding of sanity could be upheld even “in the face of
    contrary unanimous expert opinion.” (Id., at p. 350.) Because the defendant has
    41
    the burden of proof, “if neither party presents credible evidence on that issue the
    jury must find him sane.” (Id., at p. 351.) When no affirmative evidence of sanity
    has been presented, we held, “the question on appeal is not so much the
    substantiality of the evidence favoring the jury’s finding as whether the evidence
    contrary to that finding [i.e., the unanimous expert opinions] is of such weight and
    character that the jury could not reasonably reject it.” (Id., at p. 351.) For reasons
    the decision explained, the value of both experts’ evaluations could be questioned,
    permitting the jury to reasonably reject both. Accordingly, Drew affirmed the
    finding of sanity. (Ibid.)
    As the foregoing suggests, the Drew standard, focusing the substantial
    evidence inquiry on the “weight and character” of the expert opinions of insanity,
    arose in the context of a sanity trial in which the expert evidence of insanity was
    uncontested, and we have applied Drew’s articulation of the standard only in that
    specific context. Most recently, in In re R.V. (2015) 
    61 Cal. 4th 18
    1, we were
    required to determine the standard of review for a finding of competency to stand
    trial in a juvenile wardship proceeding. (Id., at p. 199.) We determined that the
    appropriate standard was “the deferential substantial evidence standard” (id., at p.
    200), but we noted that “[t]here is . . . no single formulation of the substantial
    evidence test for all its applications.” (Ibid.) Because the only evidence bearing
    on the juvenile’s competence was provided by a defense expert, we applied the
    Drew standard for substantial evidence, noting it was the appropriate standard “in
    a case such as this one, in which the evidence before the court consists of the
    opinion of a qualified expert . . . and the materials on which the expert relied.”
    (Id., at p. 203.)
    Here, the evidentiary record is considerably more complex, consisting of
    the testimony of several expert witnesses for each side. We have been provided
    with no justification for departing, in these circumstances, from the most common
    42
    formulation of the substantial evidence test, in which the appellate court reviews
    the entire record in the light most favorable to the jury’s determination and affirms
    that determination if it is supported by evidence that is “reasonable, credible and
    of solid value.” (People v. Dunkle (2005) 
    36 Cal. 4th 861
    , 885.) This is the
    standard of review applied to a jury finding of competency to stand trial, an
    analogous inquiry in which the defendant bears the burden of proof by a
    preponderance of the evidence. (Ibid.; People v. Marshall (1997) 
    15 Cal. 4th 1
    ,
    31.) We therefore hold that a jury’s finding of sanity will be affirmed if it is
    supported by evidence that is reasonable, credible, and of solid value, from which
    a reasonable trier of fact could find the defendant sane by a preponderance of the
    evidence.
    2. The evidence was sufficient to support the jury’s finding that
    defendant was not insane at the time of the killing
    Having determined the appropriate substantial evidence test to be applied in
    these circumstances, we have no difficulty in finding substantial evidence to
    support the jury’s finding that defendant was legally sane at the time he committed
    the murder. Although one of the prosecution’s experts, Dr. Griesemer, found
    some slowing in defendant’s EEG test, he did not believe it indicated organic
    deficiencies and concluded defendant’s functioning was normal. Dr. Mohandie,
    the prosecution’s other expert, believed defendant was feigning at least some of
    his psychiatric symptoms. He also found no evidence that defendant suffered
    from bipolar disorder, as testified by the defense experts. In Dr. Mohandie’s view,
    some symptoms of the disorder would have been expected despite defendant’s
    medication, yet, as he noted, defendant disclaimed symptoms of mental illness,
    such as voices, delusions, or hallucinations. Dr. Mohandie found the defense
    experts’ diagnosis of intermittent explosive disorder inconsistent with the
    purposeful behavior displayed in the killing. Based on his observations, Dr.
    43
    Mohandie believed defendant was aware of the nature of his actions at the time of
    the killing and could distinguish right from wrong. These experts’ testimony
    suffices to support the jury’s finding of sanity.
    Further, although the testimony of defendant’s experts provided strong
    evidence that defendant suffered from mental or emotional disabilities, that is not
    the same as legal insanity, and their testimony was less clear in demonstrating the
    elements of insanity. For example, the defense experts were unified in suggesting
    that defendant was unable to control his conduct as a result of mental defects.
    Merely because a person finds it difficult or impossible to control his or her
    behavior, however, does not necessarily mean that the person lacks the ability to
    understand the nature and quality of that behavior or to distinguish right from
    wrong. On the latter issues, the defense experts were less unified, and the
    evidence supporting their conclusions was less compelling.
    Defendant’s claim of insufficiency of the evidence is based on a detailed
    comparison of the testimony of his own experts with that of Drs. Griesemer and
    Mohandie, which, he contends, demonstrates that the prosecution experts failed to
    account for all of the various factors that were cited by the defense experts. The
    issue of legal sanity is, of course, a complex and uncertain one about which fully
    competent experts can reasonably disagree. While their testimony might not have
    revealed that Drs. Griesemer and Mohandie took into account all of the matters
    raised by the defense, we are satisfied by their qualifications and the nature of
    their testimony that their opinions were of sufficient quality that the jury could
    rely on them in finding defendant sane. Nothing more is required to constitute
    substantial evidence.
    44
    C. Penalty Phase Issues
    1. The trial court did not err in admitting evidence of defendant’s
    possible gang affiliation and racist beliefs
    As noted ante, part A.4, defendant argues that the trial court committed
    prejudicial error in admitting evidence of his racist tattoos and gang membership.
    We discuss the admission of gang-related evidence separately for the guilt and
    penalty phases because they were tried to different juries and the exact nature of
    the evidence introduced at the two proceedings differed. The penalty phase jury
    was unaware of, and therefore unaffected by, the tattoo and gang membership
    evidence introduced in the guilt phase.
    Prior to the second penalty phase trial, the defense sought to exclude
    evidence of defendant’s tattoos. The court acknowledged that the contemplated
    gang-related evidence was “dangerous” and asked the prosecution to justify its
    admission. The prosecutor responded that defendant had seen Sims and Epperson
    together on the morning of the killing and could have believed they were getting
    back together. Racial animus, the prosecutor claimed, could have been “the spur,
    the additional spur that caused the defendant to murder her and to torture her.
    That’s the People’s theory.”
    The court agreed with the prosecutor and declined to exclude the evidence,
    explaining, with regard to the tattoos, “This isn’t somebody else’s opinion that
    he’s a racist. He puts this on himself. . . . [T]hat this white woman, the victim in
    the case, was interested in an African-American man, would make a racist very
    angry.” Racial animus, the court believed, might explain the extreme nature of
    defendant’s rage, expressed in the savage beating of Epperson. As the court
    summarized its thinking, evidence of the tattoos “goes to the motivation and
    explosive nature of his conduct at the time of the crime.”
    45
    When called to testify, Charles Vannoy, defendant’s friend, confirmed that
    he had both a swastika tattoo and a lightning bolt tattoo and that lightning bolts are
    a “sign” of the Aryan Brotherhood. Vannoy, however, denied affiliation with the
    Aryan Brotherhood. When the prosecutor asked, “Isn’t it true that you and
    [defendant] belong to . . . ,” she was stopped in mid-sentence by an objection,
    which was sustained. Soon after, the prosecutor noted that defendant told Vannoy
    that Epperson’s ex-boyfriend was an African-American and asked whether
    Vannoy saw “any significance to saying that the boyfriend was black.” Defense
    counsel objected, and the prosecutor withdrew the question after being persuaded
    that the detective interviewing Vannoy, rather than defendant, had brought up
    Sims’s race. No admonishment was requested or given.
    As in the guilt phase, Timothy Todd, Epperson’s friend and assistant,
    testified that defendant told him, “if [Sims] kept pursuing [Epperson], he would
    kill [Sims].” An objection was sustained to the prosecutor’s follow-up inquiry
    whether defendant had used a “racial epithet” when he made the threat, but not
    before Todd confirmed that an epithet had been used. Counsel did not request that
    the answer be stricken. Todd was thereafter allowed to testify, over objection, that
    in the year 2000, defendant told Todd he belonged to a “white gang.” Although
    Todd did not recall which gang, he said, “Well, I know there’s several white
    gangs. There’s the LRL, Aryan Nations, gangs like that.”
    Sims testified that while he was together with defendant in a rehabilitation
    program, Sims did not know defendant well and avoided him. Over objection,
    Sims was permitted to testify that he avoided defendant because defendant had
    tattoos on his calves and arms, without describing the tattoos. Sims also testified
    that on four separate occasions defendant had engaged in intimidating conduct
    with him, although he described only one incident, when defendant swore at Sims
    as he was entering the Weingart Center.
    46
    When the defense presented the testimony of an African-American friend
    of defendant, whom he had met at the Weingart Center, the prosecutor asked the
    witness whether she was aware of defendant’s tattoos, without describing them.
    The witness said she had seen the tattoos and was not bothered by them, again
    without any express indication of their content. Defendant’s mother, Joyce,
    testified that defendant’s father was a “bigot, . . . major big time,” but she said that
    defendant had not “picked up on that.” Joyce confirmed that she was aware of
    defendant’s prison tattoos, but when the prosecutor suggested the tattoos were
    “associated with, for want of a better word white supremacist,” Joyce said she
    “didn’t know that, no, I did not.”
    In closing argument, the prosecutor never raised the possibility that
    Epperson’s killing was related to Sims or his race.
    As the foregoing indicates, the evidence of defendant’s alleged gang
    membership admitted during the penalty phase was limited. Vannoy testified
    about his tattoos and denied gang membership, but he was prevented from
    testifying about defendant’s gang membership. Todd testified that defendant
    claimed to have belonged to a white gang and had used a racial epithet in speaking
    about Sims. Sims confirmed that he felt threatened by defendant, without
    expressly attributing his discomfort to perceived racism. Two African-American
    witnesses acknowledged an awareness of defendant’s tattoos, but neither described
    them; only the fact that the topic arose during the testimony of African-American
    witnesses hinted at their content. When the prosecutor eventually attempted to
    suggest to defendant’s mother that the tattoos related to racist sympathies, his
    mother denied it. And, as noted, none of this featured in the prosecutor’s closing
    argument.
    Evidence of a defendant’s racist beliefs is inadmissible in the penalty phase
    of a capital trial if it is not relevant to an issue in the case. (Dawson v. Delaware
    47
    (1992) 
    503 U.S. 159
    , 167; People v. Merriman (2014) 
    60 Cal. 4th 1
    , 104
    (Merriman).) When evidence suggesting racist beliefs by a defendant is probative
    of an issue raised by the proceedings, however, we have affirmed its admission,
    notwithstanding any risk of prejudice. (See, e.g., People v. Townsel (2016) 
    63 Cal. 4th 25
    , 66-67 [evidence of a racial slur used in the course of making a threat
    held admissible when the threat was relevant to the killing]; Merriman, at pp. 104-
    105 [evidence of defendant’s racist beliefs admissible to explain defendant’s past
    attacks and fights]; People v. Richardson (2008) 
    43 Cal. 4th 959
    , 1030 [evidence
    of defendant’s leadership of white prison gang admissible to explain his ability to
    control others].)
    We agree with the trial court that evidence of defendant’s tattoos and racial
    gang membership was relevant to explain the motivation for and savagery of his
    attack on Epperson. Wounded racial pride could have caused him not only to
    assault Epperson, but to do so in a manner intended to cause her both great
    suffering and disfigurement.
    Nor do we find error in the trial court’s decision not to exclude the evidence
    under Evidence Code section 352, which permits the court to exclude otherwise
    relevant evidence if its probative value is substantially outweighed by the
    probability that its admission will create a substantial danger of undue prejudice.
    “ ‘Evidence is substantially more prejudicial than probative [citation] [only] if,
    broadly stated, it poses an intolerable “risk to the fairness of the proceedings or the
    reliability of the outcome.” ’ ” (People v. Eubanks (2011) 
    53 Cal. 4th 110
    , 144;
    see People v. Booker (2011) 
    51 Cal. 4th 141
    , 188 [“ ‘Prejudice’ in the context of
    Evidence Code section 352 is not synonymous with ‘damaging’: it refers to
    evidence that poses an intolerable risk to the fairness of the proceedings or
    reliability of the outcome”].) Further, as we have noted in connection with the
    admission of crime scene photographs during the penalty phase, “ ‘the trial court’s
    48
    discretion [at the penalty phase] to exclude circumstances-of-the-crime evidence
    as unduly prejudicial is more circumscribed than at the guilt phase. During the
    guilt phase, there is a legitimate concern that crime scene photographs . . . can
    produce a visceral response that unfairly tempts jurors to find the defendant guilty
    of the charged crimes. Such concerns are greatly diminished at the penalty
    phase because the defendant has been found guilty of the charged crimes, and the
    jury’s discretion is focused on the circumstances of those crimes solely to
    determine the defendant’s sentence. Indeed, the sentencer is expected to
    subjectively weigh the evidence, and the prosecution is entitled to place the capital
    offense and the offender in a morally bad light.’ ” (People v. Moon (2005)
    
    37 Cal. 4th 1
    , 35.) We review a trial court’s decision to admit evidence over an
    Evidence Code section 352 objection for abuse of discretion. (Eubanks, at
    pp. 144-145.)
    A crime involving the degree of violence demonstrated here is in some
    manner incomprehensible and inexplicable. In attempting to affix the appropriate
    penalty, the jury was entitled to hear evidence bearing on the factors that possibly
    brought on the violence, whether, in the defense’s view, defendant’s mental
    instability, or otherwise. One of those possible factors was Epperson’s past
    intimate relationship, and her continued personal relationship, with an African-
    American man. Although we recognize the potential adverse consequences
    resulting from the introduction of evidence suggesting defendant held racist
    beliefs, those consequences do not constitute undue prejudice because his alleged
    beliefs might have contributed to the commission of the crime. In these
    circumstances, we find no abuse of discretion in the trial court’s conclusion that
    the risk of undue prejudice was outweighed by the probative value of the evidence.
    49
    2. Imposition of the death penalty on a mentally ill defendant does not
    violate the Eighth Amendment
    Defendant contends that even if he was not found to be legally insane at the
    time of the killing, the evidence demonstrates that he was and is mentally ill. He
    contends that imposition of the death penalty on a mentally ill person violates the
    Eighth Amendment’s prohibition against cruel and unusual punishment.
    We considered the identical argument in Hajek and 
    Vo, supra
    , 
    58 Cal. 4th 1144
    , concluding that neither the Eighth Amendment nor United States Supreme
    Court authority precludes imposition of the death penalty on mentally ill persons.
    (Id., at p. 1251.) As we held, “[m]ost significantly, the circumstance that an
    individual committed murder while suffering from a serious mental illness that
    impaired his judgment, rationality, and impulse control does not necessarily mean
    he is not morally responsible for the killing. There are a number of different
    conditions recognized as mental illnesses, and the degree and manner of impairment
    in a particular individual is often the subject of expert dispute. Thus, while it may
    be that mentally ill offenders who are utterly unable to control their behavior lack
    the extreme culpability associated with capital punishment, there is likely little
    consensus on which individuals fall within that category or precisely where the line
    of impairment should be drawn. Thus, we are not prepared to say that executing a
    mentally ill murderer would not serve societal goals of retribution and deterrence.
    We leave it to the Legislature, if it chooses, to determine exactly the type and level
    of mental impairment that must be shown to warrant a categorical exemption from
    the death penalty.” (Id., at p. 1252.)
    Soon after the issuance of Hajek and Vo, our decision in People v. Mendoza
    (2016) 
    62 Cal. 4th 856
    (Mendoza), re-affirmed its holding. We noted that Hajek and
    Vo’s “broad holding applies in the present case as well — especially considering that
    in this case the jury, after a separate trial involving copious testimony from mental
    50
    health experts, rejected defendant’s claim that he was not culpable for the murders on
    the ground of insanity as defined by our law, and at the penalty phase rejected his
    argument that because of his mental illness the death penalty was not warranted.”
    (Mendoza, at p. 910.) Just as in Mendoza, a jury found defendant legally sane after a
    trial and rejected his argument in the penalty phase that, because of his mental illness,
    he should not be put to death.
    Defendant has presented no argument that was not considered and rejected
    in Hajek and Vo and Mendoza, and his claimed mental illness is not of a type that
    is materially different, for purposes of the Hajek and Vo analysis, from the
    impairments suffered by the defendants in those cases. We therefore decline to
    hold that the Eighth Amendment precludes defendant’s execution by reason of
    mental illness.
    3. Defendant’s various constitutional challenges to California’s
    imposition of the death penalty fail
    Defendant raises a series of challenges to California’s death penalty statute.
    As he acknowledges, these arguments have been rejected by this court in past
    decisions. As he anticipates, we decline to revisit our prior holdings with respect
    to these issues, which are listed below. Given the longstanding nature of our
    rulings, we do not reiterate their rationale.
    California’s death penalty laws adequately narrow the class of murderers
    subject to the death penalty. (People v. Henriquez (2017) 4 Cal.5th 1, 45
    (Henriquez).) In particular, the special circumstances of section 190.2, which
    render a murderer eligible for the death penalty, are not so numerous and broadly
    interpreted that they fail adequately to narrow the class of persons eligible for
    death. (People v. Johnson (2016) 
    62 Cal. 4th 600
    , 654-655; People v. Myles
    (2012) 
    53 Cal. 4th 1181
    , 1224-1225.)
    51
    Section 190.3, factor (a), which permits the jury to consider the
    circumstances of the capital crime in its penalty determination, does not license
    the jury to impose death in an arbitrary and capricious manner in violation of the
    United States Constitution. 
    (Henriquez, supra
    , at p. 45; People v. Brown (2004)
    
    33 Cal. 4th 382
    , 401.)
    The federal Constitution does not require that the jury agree unanimously
    on which aggravating factors apply. (People v. Jackson (2016) 1 Cal.5th 269, 372
    (Jackson); People v. Lewis (2008) 
    43 Cal. 4th 415
    , 533.) Nor is the death penalty
    unconstitutional for failing to require proof beyond a reasonable doubt that an
    aggravating circumstance has been proved (other than section 190.3, factor (b) or
    (c) evidence), that the aggravating factors outweigh the mitigating factors, or that
    death is the appropriate sentence. (People v. Rangel (2016) 
    62 Cal. 4th 1192
    ,
    1235.) For that reason, again other than section 190.3, factors (b) and (c), the jury
    need not be instructed that proof beyond a reasonable doubt is required. (People v.
    Leonard (2007) 
    40 Cal. 4th 1370
    , 1429.) These conclusions are not affected by
    Apprendi v. New Jersey (2000) 
    530 U.S. 466
    or Ring v. Arizona (2002) 
    536 U.S. 584
    . (People v. Fuiava (2012) 
    53 Cal. 4th 622
    , 732.)
    The jury need not make written findings regarding the existence of
    aggravating factors. 
    (Mendoza, supra
    , 62 Cal.4th at p. 916; People v. Clark
    (2011) 
    52 Cal. 4th 856
    , 1007.)
    There is no Eighth Amendment requirement that our death penalty
    procedures provide for intercase proportionality review. (People v. 
    Johnson, supra
    , 62 Cal.4th at p. 656; People v. Lang (1989) 
    49 Cal. 3d 991
    , 1043.)
    The jury’s reliance on unadjudicated criminal activity as a factor in
    aggravation under section 190.3, factor (b), without any requirement that the jury
    unanimously find that the activity was proved beyond a reasonable doubt, does not
    deprive a defendant of any federal constitutional right, including the Sixth
    52
    Amendment right to trial by jury and the Fourteenth Amendment right to due
    process. (People v. 
    Clark, supra
    , 52 Cal.4th at p. 1007; People v. Balderas (1985)
    
    41 Cal. 3d 144
    , 204-205.)
    Nor does section 190.3’s use of adjectives such as “extreme” and
    “substantial” in factors (d) and (g), respectively, act as a barrier to the jury’s
    consideration of mitigating evidence, in violation of constitutional commands.
    (People v. 
    Johnson, supra
    , 62 Cal.4th at p. 656; People v. Adcox (1988) 
    47 Cal. 3d 207
    , 270.) The court was not required to instruct the jury that the statutory
    mitigating factors were relevant solely to mitigation, and the court’s instruction
    directing the jury to consider “whether or not” certain mitigating factors were
    present did not invite the jury to use the absence of such factors as an aggravating
    circumstance, in violation of state law and the Eighth and Fourteenth
    Amendments. (People v. 
    Johnson, supra
    , 62 Cal.4th at p. 656; People v. Coffman
    and Marlow (2004) 
    34 Cal. 4th 1
    , 123.)
    The failure to afford capital defendants at the penalty phase the same
    procedural safeguards afforded to noncapital defendants does not offend equal
    protection principles, because the two groups are not similarly situated. 
    (Brooks, supra
    , 3 Cal.5th at p. 116; People v. Whalen (2013) 
    56 Cal. 4th 1
    , 91.)
    California does not regularly use the death penalty as a form of punishment,
    and “its imposition does not violate international norms of decency or the Eighth
    Amendment’s prohibition against cruel and unusual punishment.” (People v.
    
    Clark, supra
    , 52 Cal.4th at p. 1008.)
    D. Alleged Cumulative Effect of Asserted Errors
    Defendant argues that the cumulative impact of the asserted errors at the
    guilt and penalty phases rendered his trial fundamentally unfair and deprived him
    of other constitutional rights. Because we have concluded there was no
    53
    error related to the trial on the capital offenses or their punishment, there is
    nothing to cumulate and, in any event, we reject the claim that any asserted
    cumulative effect warrants reversal.
    III. DISPOSITION
    The judgment is affirmed in its entirety.
    CANTIL-SAKAUYE, C. J.
    WE CONCUR:
    CHIN, J.
    CORRIGAN, J.
    LIU, J.
    CUÉLLAR, J.
    KRUGER, J.
    JOHNSON, J.*
    *     Associate Justice of the Court of Appeal, Second Appellate District,
    Division One, assigned by the Chief Justice pursuant to article VI, section 6 of the
    California Constitution.
    54
    See next page for addresses and telephone numbers for counsel who argued in Supreme Court.
    Name of Opinion People v. Powell
    __________________________________________________________________________________
    Unpublished Opinion
    Original Appeal XXX
    Original Proceeding
    Review Granted
    Rehearing Granted
    __________________________________________________________________________________
    Opinion No. S137730
    Date Filed: August 13, 2018
    __________________________________________________________________________________
    Court: Superior
    County: Los Angeles
    Judge: William Pounders
    __________________________________________________________________________________
    Counsel:
    R. Clayton Seaman, Jr., under appointment by the Supreme Court, for Defendant and Appellant.
    Kamala D. Harris and Xavier Becerra, Attorneys General, Dane R. Gillette, Chief Assistant Attorney
    General, Lance E. Winters, Assistant Attorney General, Jaime L. Fuster and Pamela C. Hamanaka, Deputy
    Attorneys General, for Plaintiff and Respondent.
    Counsel who argued in Supreme Court (not intended for publication with opinion):
    R. Clayton Seaman, Jr.
    P.O. Box 12008
    Prescott, AZ 86304
    (928) 776-9168
    Pamela C. Hamanaka
    Deputy Attorney General
    300 South Spring Street, Suite 1702
    Los Angeles, CA 90013
    (213) 269-6208
    

Document Info

Docket Number: S137730

Citation Numbers: 236 Cal. Rptr. 3d 316, 5 Cal. 5th 921, 422 P.3d 973

Judges: Cantil-Sakauye

Filed Date: 8/13/2018

Precedential Status: Precedential

Modified Date: 10/19/2024

Authorities (27)

Gregg v. Georgia , 96 S. Ct. 2909 ( 1976 )

People v. Berryman , 6 Cal. 4th 1048 ( 1993 )

People v. Lewis , 46 Cal. 4th 1255 ( 2009 )

People v. Castaneda , 51 Cal. 4th 1292 ( 2011 )

People v. Dunkle , 32 Cal. Rptr. 3d 23 ( 2005 )

People v. Drew , 22 Cal. 3d 333 ( 1978 )

People v. Blakeley , 96 Cal. Rptr. 2d 451 ( 2000 )

People v. Green , 27 Cal. 3d 1 ( 1980 )

People v. Hernandez , 93 Cal. Rptr. 2d 509 ( 2000 )

People v. Wolff , 61 Cal. 2d 795 ( 1964 )

People v. Williams , 16 Cal. 4th 153 ( 1997 )

People v. Chatman , 42 Cal. Rptr. 3d 621 ( 2006 )

People v. Booker , 51 Cal. 4th 141 ( 2011 )

People v. Kraft , 99 Cal. Rptr. 2d 1 ( 2000 )

People v. Eubanks , 53 Cal. 4th 110 ( 2011 )

People v. Anderson , 63 Cal. 2d 351 ( 1965 )

People v. Skinner , 39 Cal. 3d 765 ( 1985 )

People v. Adcox , 47 Cal. 3d 207 ( 1988 )

People v. Lang , 49 Cal. 3d 991 ( 1989 )

People v. Davis , 46 Cal. 4th 539 ( 2009 )

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