People v. Johnson ( 2018 )


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    2018 IL App (1st) 140725
    No. 1-14-0725
    Opinion filed March 30, 2018
    Fourth Division
    IN THE
    APPELLATE COURT OF ILLINOIS
    FIRST DISTRICT
    THE PEOPLE OF THE STATE OF ILLINOIS,            )     Appeal from the
    )     Circuit Court of
    Plaintiff-Appellee,                       )     Cook County.
    )
    v. 	                                            )     No. 08 CR 14022
    )
    ROBIN JOHNSON,                                  )     Honorable
    )     Thomas V. Gainer Jr.,
    Defendant-Appellant.                      )     Judge Presiding.
    _____________________________________________________________________________
    JUSTICE McBRIDE delivered the judgment of the court, with opinion.
    Presiding Justice Burke and Justice Gordon concurred in the judgment and opinion.
    OPINION
    ¶1     Defendant, Robin Johnson, was convicted in a jury trial of the first degree murder of
    Chicago Police Officer Richard Francis, disarming Officer Francis, and aggravated discharge of
    a firearm toward another Chicago police officer, for which she received sentences of,
    respectively, mandatory natural life, four years’ imprisonment, and 15 years’ imprisonment. In
    this appeal, defendant raises several challenges to the judgment. Defendant alleges that the trial
    court violated her constitutional right to present a defense when it barred proposed expert and lay
    testimony that she contends establishes that she was in a postictal, or post-seizure, state at the
    time of the offense. Defendant also argues that the trial court erred in refusing to instruct the jury
    on involuntary manslaughter and in not allowing defense counsel to impeach a defense witness
    No. 1-14-0725
    about the State having provided the witness with housing prior to her testifying at trial. Finally,
    defendant contends that her mandatory natural life sentence is unconstitutional. 1
    ¶2      The record shows that defendant was charged by indictment with four counts of first
    degree murder of a peace officer, eight counts of attempted murder, four counts of aggravated
    discharge of a firearm, and disarming a peace officer, arising from a July 2, 2008, incident that
    occurred after Officer Francis was called to investigate a disturbance on a Chicago Transit
    Authority (CTA) bus. Prior to trial, defendant submitted an answer to the State’s motion for
    pretrial discovery that suggested that defendant would “rely on the State’s inability to prove its
    case beyond a reasonable doubt.” Defendant also indicated that she was contemplating asserting
    the affirmative defense of insanity.
    ¶3      On October 16, 2013, the day before jury selection was set to commence, defendant filed
    a motion to allow her “to present the defenses and supporting evidence that (1) she did not act
    intentionally or knowingly as required under the charged statutes and (2) she did not perform a
    voluntary act as required by the criminal code.” The defense indicated that it “had investigated
    the possibility of presenting an insanity defense” and believed that the insanity defense would be
    “a weak and ineffective defense.” However, counsel believed that defendant had “a strong
    defense” based on her “not possess[ing] the mental state necessary to commit first degree
    murder” and “not perform[ing] a voluntary act.” Counsel further stated an intent to call Dr.
    Stephan Schuele to testify that defendant suffers from epileptic seizures and that she was “in a
    postictal or post-seizure state at the time that” the officer was shot. Dr. Schuele would further
    testify that defendant “was not capable of forming the necessary mental state to commit first
    1
    In defendant’s initial brief, she also raised an issue regarding her mittimus, contending that she
    was credited for only 2044 days spent in custody prior to sentencing when she actually spent 2045 days in
    pre-sentencing custody. After the State responded that 2044 was the correct number of days, since the
    date of sentencing is not included in the calculation (see People v. Williams, 
    239 Ill. 2d 503
    , 509 (2011)),
    defendant withdrew that issue in her reply brief.
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    No. 1-14-0725
    degree murder” and that her medical condition “created a confused state such that [defendant]
    was not performing voluntary acts.” Defendant also claimed that her condition, which resulted
    from “a seizure and postictal state, could lead a jury to conclude that she acted recklessly and
    therefore committed the offense of involuntary manslaughter rather than first degree murder.”
    ¶4     On October 16, 2013, the State filed a motion in limine to exclude defendant’s proposed
    expert testimony in the absence of an insanity defense. The State argued that where defendant
    was not presenting an insanity defense, the proposed testimony was irrelevant and amounted to
    “an improper attempt to resurrect the now-defunct defense of diminished capacity.” The State
    further asserted that “the proposed testimony on the issue of epilepsy, would serve only to
    confuse the jury and to invade the province of the jury.”
    ¶5     On October 17, 2013, the court held a pretrial hearing for the court to hear Dr. Schuele’s
    proposed testimony and consider its admissibility at trial. Dr. Schuele testified that he was a
    neurophysiologist and epileptologist at Northwestern University and Northwestern Medical
    Faculty Foundation (Foundation). Dr. Schuele further testified that he was “the section head for
    the Epilepsy Section” at the Foundation, and the Medical Director of the Neurological Testing
    Center at Northwestern Memorial Hospital. In 2010, Dr. Schuele was asked to evaluate
    defendant. In evaluating her, Dr. Schuele interviewed defendant and her family members and
    relied on a neuropsychological report prepared by Dr. Robert Hanlon, the fire department
    incident report, the police case report, the indictment, the video surveillance footage of the
    incident, and defendant’s prior hospitalization records.
    ¶6     Dr. Schuele explained that epilepsy is “a tendency of the brain to have unprovoked,
    recurrent seizures, epileptic seizures” and that it was “basically defined as having had at least
    two unprovoked epileptic seizures.” Dr. Schuele stated that a person could have epileptic
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    No. 1-14-0725
    seizures without having epilepsy when the seizures were “provoked.” He stated that provoking
    factors could include a “variety of medical conditions,” including renal failure, liver failure,
    dehydration after, for example, running a marathon or substance abuse. Dr. Schuele testified that
    he did not diagnose defendant with epilepsy because he was not able to determine whether her
    seizures were provoked or unprovoked. He was “confident to say that she has epileptic seizures,”
    but noted that defendant had certain risk factors for provoked seizures. Specifically, Dr. Schuele
    stated that if defendant had provoked seizures, they would have been caused by her chronic drug
    use, alcohol use, or alcohol withdrawal. Dr. Schuele also stated that he looked at defendant’s
    EEG records, which were normal, but explained that about 20% of people with epilepsy will
    have normal EEGs.
    ¶7     Dr. Schuele further explained that a “postictal period” referred to “the fact that directly
    following a seizure most patients are confused for a certain period of time.” This period normally
    lasts between 10 and 30 minutes; however, some patients with frequent seizures, or a cluster of
    seizures, “go into a prolonged confusional, delusional state.” Dr. Schuele stated that this was
    “basically a prolongation of the acute postictal state,” in which people are tired, confused,
    disoriented, and, in some cases, agitated or violent. Dr. Schuele described this as “postictal
    psychosis,” where a person has “one or two or several days” where he or she exhibits “paranoid
    and delusional and bizarre behavior.” Dr. Schuele testified that a person can “walk and ***
    function to a certain degree, but they *** have psychotic symptoms where they [have] irrational
    or erratic or bizarre behavior.”
    ¶8     Dr. Schuele noted that defendant was hospitalized on June 29, 2008, three days before the
    incident, and that there was a handwritten note in the record that she had been “postictal” the day
    before and was “[n]ow feeling better.” Dr. Schuele testified that, from defendant’s history and
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    No. 1-14-0725
    the descriptions he had been given, he believed that it was “reasonable to assume that
    [defendant] was in a postictal state” on July 2, 2008, and that, at the time of the incident,
    defendant “showed signs of erratic behavior consistent with an acute confusional state.”
    ¶9     The doctor also explained that the symptoms of a postictal period could “wax and wane”
    and that “people who are delirious or postictal have moments where they make clear statements
    and other moments where they make very incoherent or out of context statements.” He also
    stated that he could not “exclude that during these three days she would have the intention to go
    to the bathroom or she had the intention to eat something or do something intentional” but stated
    that the surveillance video of the incident gave him “information of how erratic she was at the
    moment of the incident.” Dr. Schuele specifically characterized the video as showing that when
    defendant was on the bus, she engaged in a motion mimicking putting money in the fare box,
    when she did not actually do so, and that she was walking behind one of the bus passengers with
    her arms bent. Dr. Schuele also relied on reports that the bus passenger asked defendant why she
    was following her, and defendant responded, “[Y]ou made me this way.”
    ¶ 10   Dr. Schuele further explained that a person
    “in a delirious state has actions which are volitional and actions which are erratic.
    *** [W]e are not talking about a patient who is comatose and unresponsive and
    where things are black and white. We’re talking about a situation where obviously
    every step a person does is a volitional act because, otherwise, we wouldn’t walk.
    *** So, yes, obviously, she does many volitional things. She does—it is my
    opinion as well that she does many erratic things.”
    ¶ 11   When asked whether Dr. Schuele could tell which parts of the sequence of events were
    volitional and which were erratic, the doctor responded:
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    No. 1-14-0725
    “I think you can probably judge erratic behavior as good [sic] as I can. You know,
    it’s erratic to mimic putting money in the fare thing. *** [I]t is erratic to walk
    behind someone with your arms bent and walking back and forth. *** It is erratic
    to answer questions of why do you follow me with, like, you made me this way.
    That is paranoid and delusional.”
    Dr. Schuele clarified, however, that when he used the words “paranoid and delusional,” he was
    describing the postictal state, not making a psychiatric diagnosis, and that a doctor “obviously
    do[es]n’t make a psychiatric diagnosis just because someone *** was confused after a seizure.”
    ¶ 12   Dr. Schuele stated that it was his understanding that “movements are volitional” and that
    “holding something, pulling a trigger” and pointing a gun at someone, were “volitional act[s].”
    However, Dr. Schuele stated that he believed that defendant did not “understand[ ] the situation”
    and that she was “paranoid and *** fe[lt] threatened to an irrational degree.”
    ¶ 13   When asked about whether he knew from witness accounts that Officer Francis did not
    get up or move after the initial gunshot, Dr. Schuele responded, “If I remember the video, the
    video, obviously, doesn’t show much. The video on that part, there’s a lot of obstruction.” Dr.
    Schuele was also asked whether he recalled that defendant was “accused of hiding behind a car
    and shooting in the direction of other officers after she shot and killed Officer Franc[i]s,” and
    responded that he “d[id]n’t remember that detail.”
    ¶ 14   At the conclusion of Dr. Schuele’s testimony, the court indicated that it would have a
    ruling in the morning before jury selection.
    ¶ 15   The next morning, the court began by noting that, typically, “a defendant’s state of mind
    is a question of fact to be determined by the jury” and that it “may be inferred from the character
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    No. 1-14-0725
    of the defendant’s conduct and the circumstances surrounding the commission of the offense.”
    The court continued:
    “The admissibility of expert testimony regarding a defendant’s intent or lack
    thereof which is the ultimate issue in a murder prosecution depends on whether
    the expert is to testify to facts requiring scientific knowledge not within the
    common knowledge of the jury.
    ***
    Dr. Schuele’s testimony in this case is not being offered in support of the
    affirmative defense of insanity. It’s being offered only on the issue of her intent,
    and it comes under the rubric of a reasonable doubt argument. ***
    But expert testimony cannot and must not confuse the jury or invade the
    province of the jury in determining the ultimate issues. ***
    Dr. Schuele described what he called the postictal phase which occurs
    after the seizures. ***
    In this state, the person could appear paranoid and delusional, but
    according to Dr. Schuele, would also be capable of performing voluntary acts
    such as pointing a gun at someone, shooting that person, hiding behind a vehicle,
    and firing a weapon at other police officers who arrived on the scene while
    protecting herself.
    Dr. Schuele testified that there was no psychiatric or psychological
    diagnosis made that the defendant suffered from paranoia or delusional thinking[.]
    ***
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    No. 1-14-0725
    Dr. Schuele testified that while she may have been confused and agitated
    as a result of her postictal state, she was capable of engaging in voluntary acts
    such as I have described, aiming a gun at a victim, shooting the victim, protecting
    herself, and then shooting at other police officers.
    In this Court’s opinion, this testimony would only serve to confuse the
    jury on the ultimate issue in the case since the doctor is saying two things. She’s
    in this confused and agitated state, but she’s also capable of engaging in volitional
    acts. To allow anger, agitation, confusion, erratic behavior which result in the
    defendant’s long history of alcoholism and substance abuse to rise to the level of
    mental disease or defect would make voluntary intoxication a defense to criminal
    conduct, and Illinois does not recognize voluntary intoxication as a defense.
    ***
    This testimony that’s being offered is more akin to the diminished
    capacity defense[.]
    ***
    Dr. Schuele’s testimony that the defendant was in a postictal state of
    agitation and aggression but still capable of volitional acts would only confuse the
    jury on an issue which is theirs [sic] to decide.”
    ¶ 16   After ruling, the State also indicated that it “would be objecting” to the defense
    presenting evidence through lay opinions given by family members and paramedics that
    defendant suffered from seizures. Defense counsel responded that the defense would not be
    asking about their opinions of whether defendant was suffering from a seizure, but that the
    defense should be able to call these witnesses to testify regarding the “facts of what they
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    No. 1-14-0725
    observed.” The court ruled that defendant did not have a right to “ask them opinions about
    postictal states and such. But I believe you have a right to call witnesses to testify to her
    behavior.”
    ¶ 17   On October 21, 2013, the State sought to clarify the trial court’s ruling by filing a motion
    in limine seeking to prevent the defense from providing evidence of “defendant’s medical and
    mental history as it is not relevant to any issue before the court.” The State asserted that any
    evidence “of the defendant’s mental health in the form of prior seizures, confusion, medication
    or current medical diagnoses are not relevant absent an insanity defense.” The State argued that it
    was “obvious that the defense [wa]s trying to circumvent their burden” of proving insanity, and
    that the defense’s “attempts to call her family, paramedics, and doctors” were only relevant to a
    nonexistent diminished capacity defense. The State asked that the evidence “be excluded as it
    remains irrelevant, in no way assists the jury and would instead serve to confuse the jury while
    deliberating the issues in the case.” The State also explained that some of the evidence that
    defendant sought to admit constituted hearsay, was speculative, or was “too remote to be
    relevant.”
    ¶ 18   In ruling on the State’s motion in limine, the court explained that its prior ruling
    “was that the jury should be able to determine [the voluntariness of] the acts, all
    the acts of the defendant and her acts at the time she encountered the police
    officer, and no expert testimony was necessary ***.
    The evidence that this woman suffers from epilepsy, had suffered from
    epilepsy in the past and had involved herself in seizure-type behavior in the past is
    not relevant to the issue of whether or not she was committing a voluntary act on
    the night in question.”
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    No. 1-14-0725
    ¶ 19   The court noted that Dr. Schuele testified that defendant was “capable of committing
    voluntary acts” and concluded that
    “all this epilepsy evidence is only going to confuse the jury. It’s excludable under
    403. It’s really not relevant to what happened. ***
    This type of evidence, all of it, the daughters, the boyfriend, the
    paramedics, and the doctors, is going to mislead the jury. The jury is going to
    have to make up its mind from what it hears from the witnesses, *** and ***
    what they see in the video to determine whether or not she was acting volitionally.
    She does not have an affirmative defense, and there is no defense of
    diminished capacity under Illinois law.”
    ¶ 20   The defense asked the court to reconsider, and the court stated, “I still believe that this is
    more in the nature of a diminished capacity defense which does not exist in Illinois, and my
    ruling is no one will testify concerning epilepsy.”
    ¶ 21   After opening statements, the State called Debra Francis, widow of the deceased victim,
    Chicago Police Officer Richard Francis. Debra testified that she last saw her husband at 10:40
    p.m. on July 1, 2008, before he left for his 11 p.m. shift. After 2 a.m., a police officer rang her
    doorbell and drove her to the hospital, where she learned that her husband had died.
    ¶ 22   Tracey Jackson testified that she was working the overnight shift as a CTA bus operator
    on July 1 and 2, 2008. Around 1:50 a.m. on July 2, 2008, Jackson stopped the bus at the
    intersection of Belmont, Western, and Clybourn Avenues, across the street from a police station,
    to let passengers on and off the bus. One passenger, a middle-aged Hispanic woman later
    identified as Donna Barney, exited the bus, and two people stepped onto the bus. Jackson
    identified defendant as the second person to step onto the bus, and testified that defendant turned
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    No. 1-14-0725
    around and stepped off of the bus a few seconds after Barney exited. Jackson saw defendant
    follow Barney, walking “very closely, step for step behind” her. Barney then came back to the
    bus with defendant following, and Jackson unsuccessfully tried to separate the women by closing
    the doors between them. Barney exited the bus, and defendant again followed. At that point,
    Jackson requested assistance using a machine on the bus. Jackson saw a Chicago police car
    driving northwest on Clybourn, so she “beeped [her] horn and waved at” the driver. The officer,
    identified as Officer Francis, stopped the car and exited, and Jackson exited her bus to speak with
    him. Jackson then returned to the bus, and when she turned around again, she saw defendant and
    Officer Francis “in [a] struggle.” Jackson saw “both of them start to fall to the ground,” then saw
    a “flash” which she understood to be a gunshot. Jackson screamed and ran to the back of the bus.
    The State then published the surveillance footage from the CTA bus for the jury.
    ¶ 23   Jennifer Orze testified that on July 2, 2008, she was an office manager at Chicago
    Veterinary Emergency and Specialty Services on Clybourn, a 24-hour veterinary clinic near
    Belmont and Western. Around 1:53 a.m. on that date, Orze began driving home after the end of
    her shift. Orze drove north on Western, and was stopped at the traffic light at Belmont and
    Western when she noticed a police patrol car stopped in front of a bus at the corner. Orze was
    approximately 20 feet away from the patrol car when she saw Officer Francis attempting to
    escort defendant away from the bus and towards the squad car, with his hand on her arm. Orze
    saw that defendant was “jerking her arm away as [Officer Francis] was trying to hold onto her
    arm.” Orze then saw that Officer Francis appeared to “los[e] control of [defendant’s] arm for
    probably a second” and defendant and Officer Francis fell to the ground, with Officer Francis on
    top of defendant. A “couple of seconds” later, Officer Francis started to get up, and was on his
    knees with both hands on either side of his face with his palms open and nothing in his hands.
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    No. 1-14-0725
    Defendant was still on the ground, when Orze heard a gunshot and saw Officer Francis fall back.
    Orze noticed that other squad cars had arrived on the scene and heard officers commanding
    defendant to drop her weapon. Orze saw defendant, with a gun in her hand, pointing the gun
    toward the officers. Orze heard another gunshot, which sounded like it was coming towards her.
    Orze then drove away from the intersection and went back to her office, where she told her
    coworkers about what she had witnessed. At some point later, Orze saw officers on foot in the
    area, and she went outside her office to speak to the officers and let them know that she had
    witnessed the incident.
    ¶ 24   Robert Kalnes testified that he was working the overnight shift on July 1 to 2, 2008, as a
    dispatcher at the Illinois State Police. Kalnes received two calls that night from Officer Francis.
    At 1:53 a.m., Officer Francis called to state that he was stopping for a bus disturbance and,
    shortly thereafter, called again for assistance. The two calls were published for the jury.
    ¶ 25   The Chicago police officers who responded to the scene—Emmert Gauthier, Darrel
    Rizzo, Kevin Leahy, and William Seski—each testified. Officer Gauthier testified that on July 2,
    2008, he and Officer Rizzo were on duty together, patrolling in a marked car, when they received
    a call to go to the intersection of Belmont and Western. Officer Rizzo drove the patrol car
    towards that intersection, with Officer Gauthier in the passenger seat. As they arrived, they saw
    Officer Francis’s squad car parked in front of a bus that was parked at that intersection, just west
    of Western Avenue. Officer Gauthier testified that he saw Officer Francis escorting defendant to
    the back of his squad car when defendant pulled Officer Francis toward her and he fell forward.
    Officer Gauthier exited his vehicle to help, while Officer Rizzo parked the car. From two or three
    feet away, Officer Gauthier saw Officer Francis on the ground, and defendant in front of Officer
    Francis in a crouched position with a silver revolver in her hands. Officer Francis started to step
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    No. 1-14-0725
    up into a standing position, with his hands on either side of his face and with his palms open and
    empty. Officer Gauthier heard a “pop,” and saw Officer Francis’s body fall back. Officer
    Gauthier yelled “she’s got a gun” and ran to the back of Officer Francis’s car to “take cover.”
    Officer Gauthier heard several gunshots and saw that both defendant and other officers were
    shooting. Officer Gauthier saw other officers approaching defendant, who was on the ground,
    and Officer Seski kicked the gun out of her hand. Defendant tried to crawl under the car as the
    officers attempted to pull her out. Officer Leahy then moved Officer Francis’s vehicle forward to
    expose defendant from underneath the car, and she was placed into custody.
    ¶ 26   Officer Rizzo testified that as he arrived at the scene, he saw Officer Francis escorting
    defendant from the bus. Officer Rizzo was looking for a place to park when he glanced back at
    the scene and saw defendant “fighting” and “trying to break away from” Officer Francis. Officer
    Rizzo then realized that it was “more of an emergency,” so he parked in the intersection and
    exited the car to help. Officer Rizzo then heard shots and “became aware that we were under fire
    and that the fire was coming from the direction of the disturbance.” Officer Rizzo hid behind the
    squad car and heard someone yell “she has a gun,” which he understood to mean that defendant
    had a gun. Officer Rizzo saw defendant pointing a gun in his direction. At this point, Officer
    Rizzo saw that Officer Francis was on the ground and not moving. Defendant did not comply
    with the officers’ commands to drop the gun, and Officer Rizzo ran around the car to a position
    where he felt that he had “a line of fire.” Defendant would not drop the gun, and had it aimed at
    the officers, so Officer Rizzo fired three shots at defendant. Thereafter, Officer Rizzo saw
    defendant attempting to crawl underneath the squad car. Officer Rizzo unsuccessfully attempted
    to pull her out from underneath the car, but eventually, with the assistance of the other officers,
    he was able to secure and arrest defendant.
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    No. 1-14-0725
    ¶ 27   Officer Kevin Leahy testified that he and Officer Seski were on patrol in an unmarked car
    on July 2, 2008, when a call came in on the radio shortly before 2 a.m. from Officer Francis
    regarding a bus disturbance. Officer Leahy, who was driving, decided to turn the car around and
    go assist. As they approached, Officer Leahy immediately saw Officer Francis in a struggle.
    Before exiting the car, Officer Leahy heard a single gunshot. He exited the car, heard another
    gunshot, and went towards the rear of the vehicle. Officer Leahy heard Officer Seski yell “she’s
    got a gun, drop the gun, drop the gun,” and saw defendant crouched, with a gun in her hand,
    pointing in his direction. Officer Leahy took cover for a “brief second,” heard another shot, then
    saw that defendant was pointing the gun toward Officer Seski. Officer Leahy then fired five
    gunshots in defendant’s direction. After those shots, Officer Leahy could no longer see
    defendant, so he ran around the front of his car, and saw defendant on the ground near the rear of
    Officer Francis’s vehicle. Officers Leahy, Seski, and Rizzo ran up to defendant, who still had the
    gun in her hand. Officer Seski was able to kick the gun out of her hand, and defendant crawled
    underneath Officer Francis’s car. The officers unsuccessfully attempted to pull her out from
    underneath the car. Officer Leahy then got in the vehicle and moved it forward approximately
    two feet until she was exposed, and the officers were able to handcuff her.
    ¶ 28   Officer Seski testified that around 1:53 a.m. on July 2, 2008, a call came in from Officer
    Francis that he had been flagged down for a bus disturbance at Belmont and Western Avenues.
    Officer Seski and Officer Leahy were approximately a half mile away from that location and
    knew that Officer Francis was working alone, so they decided to go over to help. As they
    approached, Officer Seski saw Officer Francis engaged in a struggle with defendant. As Officer
    Seski began to open his door to exit the car, he heard a gunshot coming from the area of the
    struggle. Officer Seski ran towards the shot to assist Officer Francis and saw defendant raise her
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    right hand over the trunk of Officer Francis’s vehicle with a gun in her hand. Defendant pointed
    the gun at Officer Seski, who turned around and went back to the driver’s side of Officer Rizzo’s
    car for cover. Officer Seski saw defendant in a crouched position, holding the gun towards
    Officer Francis, and ordered her to drop the weapon. Defendant looked up and pointed the gun at
    Officers Seski and Rizzo. At that time, Officer Seski fired at the defendant eight times.
    Defendant “went down to the ground on her stomach” while still holding the gun. Officer Seski
    “saw an opportunity,” so he ran towards defendant and kicked the gun out of her right hand.
    Defendant then began to crawl underneath the vehicle, and the officers were unable to apprehend
    her until Officer Leahy moved the car forward a few feet.
    ¶ 29   Expert testimony established that no suitable fingerprints were found on Officer Francis’s
    revolver. The expert testimony also established that DNA samples were taken from the trigger
    and hand grips of Officer Francis’s gun. The DNA profile taken from the trigger and hand grips
    matched defendant’s DNA profile within a reasonable degree of scientific certainty. The
    probability that the DNA profile would occur was approximately 1 in 3.4 quadrillion African-
    American, 1 in 27 quadrillion Caucasian, and 1 in 560 quadrillion Hispanic unrelated
    individuals.
    ¶ 30   Robert Berk, a trace evidence analyst for the Illinois State Police, testified that he
    performed gunshot residue tests on both defendant’s and Officer Francis’s hands. He explained
    that a “positive finding” on a person’s hand meant that the person has either “handled,
    discharged, or been in the vicinity of a firearm with it was discharged.” In order to make a
    “positive finding,” he needed to find three unique particles—lead, barium and antimony—
    present on the sample, as well as a significant number of “consistent particles.”
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    ¶ 31   If a sample had less than three unique particles, and not a significant number of consistent
    particles, then it would be a “negative sample,” which meant that the person “may not have
    discharged a firearm, may not have been in the environment of a firearm when it was discharged,
    or may not have contacted an item that had primer gunshot residue on it.” He also explained
    however, that a negative result could be caused if the particles were “removed by activity, or not
    deposited, or *** not detected by the procedure.” Finally, if there were less than three unique
    particles, but a significant number of consistent particles, the result would be “inconclusive,”
    which Berk stated indicated that a person “had discharged a firearm, [was] in the environment of
    a discharged firearm, *** contacted a primer gunshot residue related item, or *** received the
    particles from an environmental or occupational source.”
    ¶ 32   Berk testified that he was able to indentify one unique particle on the samples taken from
    defendant’s hands, but that there were a significant number of consistent particles present.
    Accordingly, the test results were inconclusive. The sample taken from Officer Francis’s right
    hand tested negative, and the sample taken from his left hand was positive for the presence of
    primer gunshot residue. The parties stipulated that Officer Francis was right-handed.
    ¶ 33   John Flaskamp testified that he is a forensic scientist specializing in firearm and tool
    mark examination at the Illinois State Police. In relation to this case, Flaskamp received a
    revolver, three semi-automatic firearms, cartridge cases, and fired bullets. He determined that
    four bullets were fired from Officer Francis’s gun. Flaskamp also testified that Officer Francis’s
    gun had two internal safeties—a “hammer block” and a “rebound slide”—both of which stopped
    the gun from firing when the trigger was not pulled. The two safety mechanisms would keep the
    gun from discharging accidentally, and the gun would not have gone off if dropped. The only
    way to fire the gun was to pull the trigger.
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    ¶ 34   Dr. Joseph Cogan testified that he was a medical examiner for the Cook County Medical
    Examiner’s office and that he performed an autopsy on Officer Francis’s body on July 2, 2008.
    Dr. Cogan testified that Officer Francis had a gunshot wound to the left eye, with a group of
    lacerations around the entrance wound, indicating that he had been shot from close-range or
    about “18 inches or less” away. The trajectory of this wound was consistent with Officer Francis
    standing, and he had parallel abrasions on the rear of his head, indicating that his head hit
    something as he fell. Officer Francis had two other gunshot wounds, one that entered the
    abdomen and the other that went through the buttock. The gunshot which went through the
    buttock had an exit wound in the center of Officer Francis’s back, with a large area of abrasion
    that was consistent with Officer Francis’s body being against a hard surface, like a city sidewalk.
    Dr. Cogan also testified that he recovered a bullet that had evidence of flattening on one surface,
    which was consistent with Officer Francis lying on the ground at the time he was shot.
    ¶ 35   On October 23, 2013, before the defense presented its case, defendant filed a motion for
    reconsideration of the trial court’s decision to bar testimony regarding defendant’s seizures and
    included an offer of proof as to the proposed testimony. Defendant described the proposed
    testimony of defendant’s daughters Kyra and Kaulea and defendant’s boyfriend, Michael Biggs,
    who would testify regarding defendant’s history of seizures. Kyra would testify that “during her
    periods of seizures,” defendant would “become combative,” not recognize her family members,
    and forget “her activities during the seizure and after seizures.” Kyra would also testify that she
    saw defendant have three or four seizures on June 29, 2008, and that two days later, she and
    defendant got into a “verbal confrontation” during which defendant attempted to attack Kyra
    with knives from the kitchen before Biggs was able to take the knives away from defendant.
    Defendant left, and Kyra called the police.
    17
    No. 1-14-0725
    ¶ 36   Biggs would also testify that he saw defendant have four seizures on June 29, 2008, and
    that the next day he observed defendant “slurring her speech, speaking ‘backwards,’ ” and
    referring to her grandchildren by the wrong names. On July 1, 2008, defendant was complaining
    of pain, and Biggs called 911. After talking to the responding paramedic, defendant’s demeanor
    changed “for the worse.” Defendant told Biggs to “go home,” and Biggs “doubted that [she]
    knew who he was based on her behavior towards him” and her statements.
    ¶ 37   Defendant also indicated that the defense would call the Chicago police officers who
    responded to Kyra’s 911 call on July 1, 2008, and paramedics who responded to calls and
    encountered defendant on June 29, 2008, and July 1, 2008. Defendant also stated that she
    intended to call various paramedics who responded to calls in 2004, 2005, and 2007, after
    defendant reportedly suffered other seizures. Finally, defendant attached the evaluation of Dr.
    Schuele, and testified that he would testify consistently with that evaluation. In the evaluation,
    Dr. Schuele stated that the “reason for referral” was to determine whether defendant “lacked
    substantial capacity to appreciate the criminality of her conduct due to a mental disease or
    defect.” Dr. Schuele described the CTA surveillance video, and characterized defendant’s
    behavior “in the four minutes before the shooting” as “odd, erratic, [and] ‘magnetic’ *** without
    a clear purpose of her action.” The doctor stated that defendant “appear[ed to be] in an acute
    psychotic state” and that she did not “seem to understand the actions around her or to be able to
    respond to them with any specific intention.” Dr. Schuele thus concluded that defendant “at the
    time of the offense, lacked substantial capacity to appreciate the criminalityof [sic] her conduct
    due to a mental disease or defect.”
    ¶ 38   On October 25, 2013, the court held a hearing on defendant’s motion. The trial court
    noted that Dr. Schuele’s report contained the “types of things we typically see in an insanity
    18
    No. 1-14-0725
    defense, but that’s not the defense here.” The trial court denied defendant’s motion for
    reconsideration, finding that “all of this seizure testimony would only serve to confuse the jury.”
    The court explained that if the “mental disease or defect *** would rise to the level of insanity, it
    certainly then would become relevant. But without being able to say anything specific, he’d only
    confuse the jury. *** Dr. Schuele maintain[ed] that she was capable of acting in a volitional way.
    It is for the jury to decide whether she knowingly and intentionally performed the acts which
    caused the death of Officer Francis.” The trial court clarified that the ruling was regarding each
    and every witness, and that a number of the proposed witnesses were also “too remote in time”
    when they would be testifying regarding events from years prior to the incident.
    ¶ 39   Also outside the presence of the jury, the court held a hearing on the admissibility of the
    testimony of Deputy Laura Mlinarcik, who had been assisting in the courtroom during jury
    selection, opening statements, and the beginning of testimony. During the lunch break after
    Debra Francis’s testimony, Deputy Mlinarcik heard defendant’s conversation with another
    inmate, who asked defendant what she was in for. Defendant told the other inmate, “a police
    murder,” to which the other inmate stated, “I f*** hate cops,” and defendant replied, “I’d do it
    again.” The trial court found that the State could not introduce the conversation in their case in
    chief but reserved ruling on whether the deputy could testify in rebuttal should defendant testify.
    ¶ 40   The defense called Dr. Rebecca Rico, who was working at Illinois Masonic Medical
    Center on July 2, 2008, when defendant arrived around 5:30 a.m. with multiple gunshot wounds.
    ¶ 41   Shawn Both testified that he was a paramedic with the Chicago Fire Department and that
    he arrived at the scene at Belmont and Western in the early morning hours of July 2, 2008. When
    he arrived, Both found defendant laying in the street with handcuffs on and covered in blood. He
    asked her how she was doing and defendant looked at him and spit blood at him. Defendant
    19
    No. 1-14-0725
    became physically combative, “kicking and being uncooperative,” as Both and other responders
    attempted to secure her to a board in order to safely transport her to the hospital.
    ¶ 42    Sandra Figueroa, a dispatcher for the American United Cab Company, testified that she
    was working the overnight shift July 1 and 2, 2008 in an office at the intersection of Belmont and
    Western. Around 1:30 a.m., Figueroa looked out of a window onto Belmont and saw defendant
    stomping her feet and waving her hands in the air. Figueroa testified that defendant was saying
    something, but she could not hear what it was. Figueroa then went back to her desk to continue
    taking calls, and around 20 minutes later, she heard the sound of gunshots.
    ¶ 43   Victoria Pruszewski also testified that she worked for American United Cab Company
    and that around 9:45 or 10 p.m. on July 1, 2008, as she was getting off the bus to go to work, she
    saw defendant walking around and looking lost. After she got to work, Pruszewski saw
    defendant more than five times while she was looking out the window. Pruszewski described
    defendant as still walking around and looking lost on those occasions.
    ¶ 44   The parties stipulated that when defendant arrived at the hospital after the incident, her
    blood and alcohol were collected and sent to the toxicology lab. Defendant’s blood tested
    negative for the presence of alcohol and her urine tested negative for the presence of
    amphetamines, barbiturates, benzodiazepines, cannabinoids, cocaine metabolites, opiates,
    phencyclidine, and methadone.
    ¶ 45    Prior to the defense calling their next witness, Donna Barney, the State informed the
    court that it had previously learned that Barney was going to become homeless and without a
    permanent address. Defense counsel had requested that the State make Barney available, and in
    order to “facilitate her being available to both sides,” the State put Barney in a hotel. The State
    argued that it did not believe that defense counsel was “intending to go into that,” but such
    20
    No. 1-14-0725
    information would be “misleading to the jury because the only reason [the State] did that [wa]s
    to make her available to both sides.” Defense counsel denied requesting that the State make
    Barney available by providing her a hotel, and responded that the defense should be able to
    impeach Barney, if necessary, with the fact that the State had been paying for her housing.
    Defense counsel asserted that such information was relevant to her “bias, interest and motive.”
    The trial court stated that it would not allow the defense to introduce such evidence as
    impeachment because it should not “suggest *** that she is deriving some benefit from the State
    of Illinois in exchange for testimony that the State isn’t even offering.”
    ¶ 46   The defense then called Barney, who testified that on July 2, 2008, shortly before 2
    a.m., she was riding a CTA bus headed eastbound on Belmont. Barney got off the bus at
    Belmont and Western Avenues to use the restroom at a gas station at that intersection. When
    Barney started to cross Western, she felt pressing on the back of her body. She turned around and
    saw defendant trying to get behind her. Defendant and Barney kept moving around each other,
    and defendant held her own breast with one hand and said, “You made me this way.” Barney
    turned around and went back to speak with the bus driver, and both Barney and the bus driver
    said that they were going to call the police. When Officer Francis pulled up, Barney told him that
    defendant would not leave her alone. She asked Officer Francis if she could leave to use the
    restroom and then come back, and the officer told her not to “worry about it,” and that she did
    not need to return. Barney started to walk away towards the gas station, then heard a “scuffling”
    behind her. She looked back at the scuffle for a second, but Barney testified that she could not
    recall the exact details of what was happening at the time of her testimony. Barney
    acknowledged that she told the detective on the scene that she saw Officer Francis appear to
    place defendant in a headlock with his arm, but she stated that at the time of her current
    21
    No. 1-14-0725
    testimony she could not remember seeing the headlock. She agreed that if it was in the
    detective’s notes, she had said it, but explained that she was “not trying to be difficult, but I’m
    not remembering the specific headlock right now.” Barney saw a number of police cars
    approaching, then heard a gunshot. Barney turned around and saw defendant with a gun in her
    hand and Officer Francis falling to the ground. Barney then heard more gunshots, and she
    crouched behind an unmarked squad car to avoid the gunshots. At some point, defendant looked
    at Barney “in the eye,” and defendant pointed the gun in the direction of Barney and the
    responding police officers.
    ¶ 47    The defense next called Detective Heerdt, who testified that he was the primary detective
    assigned to the case. After the incident at approximately 3 a.m., Detective Heerdt spoke to
    Barney, who told him that “Officer Francis appeared to place [defendant] in a headlock with his
    arm.”
    ¶ 48    After Detective Heerdt’s testimony, defendant informed the court that she did not wish to
    testify on her own behalf and that she had discussed with her counsel, and agreed with, the
    decision not to pursue the affirmative defense of insanity.
    ¶ 49    The parties proceeded to the jury instruction conference at which defense counsel
    requested instructions on involuntary manslaughter. The trial court denied defense counsel’s
    request, stating “I don’t believe there’s any evidence that would warrant the giving of a[n]
    involuntary manslaughter instruction because I don’t believe that there is one of the four physical
    or one of the four qualifying factors.” The trial court also found that “after reviewing all of the
    evidence *** there are no actions that one would deem reckless based on the testimony that I
    have heard from any witness. I’m not going to give an involuntary manslaughter instruction.”
    22
    No. 1-14-0725
    ¶ 50   After closing arguments and deliberation, the jury found defendant guilty of the first
    degree murder and disarming of Officer Francis, and the aggravated discharge of a firearm
    towards Officer Rizzo. It acquitted defendant of the remaining attempted murder and aggravated
    discharge counts. Defendant’s motion for a new trial was denied.
    ¶ 51   At sentencing, Debra Francis read a victim impact statement, describing the effect of her
    husband’s murder on her and their two daughters. The State also submitted the incident report
    from Deputy Mlinarick regarding the conversation that she overheard in which defendant told
    another inmate that she was incarcerated for “killing a cop” and that she would “do it again.” In
    mitigation, the defense noted that defendant had no prior criminal convictions. The defense also
    introduced medical records, which indicated that defendant had expressed remorse or sadness for
    what occurred on four occasions.
    ¶ 52   Defendant spoke in allocution, stating that she did not remember what happened during
    the incident and that after her daughter told her that she had killed a police officer, defendant said
    that she “d[id]n’t like police officers, but [she] d[id]n’t go around killing *** them.”
    ¶ 53   In imposing sentence, the trial court noted that, while defendant was not under the
    influence of alcohol or drugs at the time of her arrest, her boyfriend had stated that “they had
    binged” a few days before the incident. The trial court also stated that defendant’s stated remorse
    was “certainly offset by what was heard by the deputy in the lockup” and by defendant’s
    statement at sentencing that she did not like the police.
    ¶ 54   Although the only sentence available for defendant’s murder conviction was natural life,
    the trial court stated that defendant “earned that sentence” and that her “actions warrant[ed] that
    sentence.” The trial court sentenced defendant to natural life without parole for the first degree
    murder of Officer Francis; 15 years’ imprisonment for aggravated discharge of a firearm, to be
    23
    No. 1-14-0725
    served consecutively to the natural life sentence; and four years’ imprisonment for disarming a
    police officer, to be served concurrently with her sentence for aggravated discharge. Defendant’s
    motion to reconsider that sentence was denied, and defendant filed a timely notice of appeal.
    ¶ 55    In this court, defendant raises a number of challenges to the judgment. First, defendant
    contends that the trial court violated her constitutional right to present a defense when it barred
    the proposed expert and lay testimony regarding her seizures and that she was in a “postictal”
    state at the time of the offense. Defendant also argues that the trial court erred in refusing to
    instruct the jury on involuntary manslaughter and in not allowing defense counsel to impeach
    Barney about the State having provided for her housing. Finally, defendant contends that her
    mandatory natural life sentence is unconstitutional. We will address each issue in turn.
    ¶ 56    Defendant first contends that her constitutional right to present a defense was violated
    when the trial court precluded her from presenting evidence of her medical condition, including
    expert and lay testimony. Defendant contends that the excluded evidence was necessary to show
    that she was not acting voluntarily at the time of the shooting and that she lacked the requisite
    mental state for first degree murder and the other charged offenses. The State disagrees,
    contending that the trial court’s exclusion of the proposed evidence was proper where the
    evidence was being offered to prove defendant’s “diminished capacity,” a defense which does
    not exist in Illinois.
    ¶ 57    As an initial matter, the parties disagree as to the appropriate standard of review
    pertaining to this issue. The State contends that it is within a trial court’s discretion to determine
    the admissibility of evidence, and we should review the trial court’s decision to exclude the
    proposed evidence for an abuse of discretion. Defendant acknowledges that the decision to grant
    or deny a motion in limine generally will not be reversed absent an abuse of discretion, but
    24
    No. 1-14-0725
    argues that the question of whether her constitutional right to present a defense is violated is a
    purely legal issue that should be reviewed de novo.
    ¶ 58   A criminal defendant has a right to a meaningful opportunity to present a complete
    defense. Holmes v. South Carolina, 
    547 U.S. 319
    , 331 (2006). Although the United States
    Constitution prohibits the exclusion of defense evidence under rules “that serve no legitimate
    purpose or that are disproportionate to the ends that they are asserted to promote,” well-
    established rules of evidence permit trial judges to exclude evidence if its probative value is
    outweighed by other factors, such as unfair prejudice, confusion of the issues, or potential to
    mislead the jury. 
    Id. at 326
    . A trial court has the inherent authority to admit or exclude evidence,
    and we review a trial court’s decision to grant or deny a motion in limine pursuant to an abuse of
    discretion standard. People v. Williams, 
    188 Ill. 2d 365
    , 369 (1999); People v. Garcia, 
    2012 IL App (2d) 100656
    , ¶ 17. In particular, “[d]ecisions of whether to admit expert testimony are
    reviewed using this same abuse of discretion standard.” People v. Becker, 
    239 Ill. 2d 215
    , 234
    (2010). Accordingly, because defendant’s argument is really a challenge to the trial court’s
    exclusion of the proposed evidence, we will review that decision for an abuse of discretion.
    ¶ 59   Abuse of discretion is the most deferential standard of review known to the law. People
    v. Crane, 
    195 Ill. 2d 42
    , 50 (2001). A trial court abuses its discretion only when its decision is
    arbitrary, fanciful, or unreasonable, or when no reasonable person would take the trial court's
    view. Garcia, 
    2012 IL App (2d) 100656
    , ¶ 17. A reviewing court does not consider whether it
    would have made the same decision if placed in the position of the trial court; rather, a reviewing
    court considers whether the decision of the trial court was arbitrary, made without conscientious
    judgment, or otherwise made in such a way that, “ ‘in view of all of the circumstances, the [trial]
    court exceeded the bounds of reason and ignored recognized principles of law so that substantial
    25
    No. 1-14-0725
    prejudice resulted.’ ” People v. Burtron, 
    376 Ill. App. 3d 856
    , 863 (2007); see also People v.
    Donoho, 
    204 Ill. 2d 159
    , 186 (2003) (“ ‘[R]easonable minds [can] differ’ about whether such
    evidence is admissible without requiring reversal under the abuse of discretion standard”). The
    use of the abuse of discretion standard in matters relating to the admissibility of evidence
    recognizes that a reviewing court owes some deference to the trial court's ability to evaluate the
    impact of the evidence on the jury. People v. Illgen, 
    145 Ill. 2d 353
    , 375–76 (1991).
    ¶ 60   Defendant contends that the court erred in barring the expert testimony of Dr. Schuele
    regarding his opinion that defendant was in a postictal period at the time of the offense, and the
    lay testimony of defendant’s boyfriend, family members, and paramedics who interacted with
    defendant on previous occasions, all of whom would have corroborated defendant’s “history of
    epileptic seizures and prolonged postictal states, as well as her condition in the days before the
    shooting incident.” She contends that such evidence was relevant to the determination as to
    whether she acted voluntarily, and her mental state. The State responds that the trial court
    properly excluded the proposed evidence because defendant was essentially attempting to raise
    the nonexistent defense of diminished capacity.
    ¶ 61   Defendant’s main contention on appeal is that the proposed evidence would have
    demonstrated that her actions were not voluntary. A material element of every offense is a
    voluntary act (720 ILCS 5/4–1 (West 2008)), and it is a fundamental principle that a person is
    not criminally responsible for an involuntary act. People v. Grant, 
    71 Ill. 2d 551
    , 558 (1978). “A
    cornerstone of the defense of involuntary conduct is that a person, in a state of automatism, who
    lacks the volition to control or prevent his conduct, cannot be criminally responsible for such
    involuntary acts.” 
    Id.
     “Such involuntary acts may include those committed during convulsions,
    sleep, unconsciousness, hypnosis or seizures.” 
    Id.
     Here, however, there is no question that
    26
    No. 1-14-0725
    defendant was not in the throes of a seizure. Instead, she claimed to have been in a “postictal”
    state, during which she “wax[ed] and wane[d]” between volitional and “erratic” behavior,
    according to her proposed expert.
    ¶ 62   We ultimately agree with the State that the evidence was properly excluded because it
    amounted to a diminished capacity defense.
    ¶ 63   Diminished capacity is an affirmative defense that permits a “legally sane defendant to
    present evidence of mental illness to negate the specific intent required to commit a particular
    crime.” Metrish v. Lancaster, 
    569 U.S. 351
     (2013); see also Black’s Law Dictionary 199 (7th ed.
    1999) (defining “diminished capacity” as “An impaired mental condition—short of insanity—
    that is caused by intoxication, trauma, or disease and that prevents the person from having the
    mental state necessary to be held responsible for a crime.”). This defense is recognized in some
    jurisdictions around the country; however, some jurisdictions, including Illinois, have chosen to
    reject it. See People v. Hulitt, 
    361 Ill. App. 3d 634
    , 636 (2005); Clark v. Arizona, 
    548 U.S. 735
    ,
    770-79 (2006) (holding that Arizona’s rule precluding the use of diminished capacity evidence to
    negate the mens rea element in the absence of an insanity defense did not violate due process).
    ¶ 64   As we discussed in Hulitt, 361 Ill. App. 3d at 640-41:
    “The doctrine of diminished capacity, also known as the doctrine of diminished or
    partial responsibility, allows a defendant to offer evidence of her mental condition
    in relation to her capacity to form the mens rea or intent required for commission
    of the charged offense. [Citation.] Similar to the insanity defense in that it calls
    into question the mental abnormality of a defendant, it differs in that it may be
    raised by a defendant who is legally sane.”
    27
    No. 1-14-0725
    ¶ 65   We find this case analogous to Hulitt, in which this court affirmed the trial court’s
    determination to exclude evidence that the trial and appellate courts found amounted to raising a
    diminished capacity defense. Specifically, in Hulitt, the defendant was charged with first degree
    murder of her two-year-old daughter. Prior to trial, the defendant claimed that she did not intend
    to raise an insanity defense, but instead wanted to raise a “reasonable doubt defense” through the
    expert testimony of a psychologist showing that she suffered from postpartum depression which
    left her “unable to appreciate the danger of her actions toward [her daughter].” Id. at 636. The
    State filed a motion in limine barring testimony from the psychologist as to the defendant’s
    mental capacity, and the trial court granted that motion. Id. at 636-37. The trial court found that
    the defendant was attempting to raise a diminished capacity defense, which did not exist in
    Illinois. Id. at 636. On appeal, the defendant argued that she was not attempting to claim
    diminished capacity; instead, she was attempting to show that she did not have the requisite
    intent to commit first degree murder.
    ¶ 66   This court affirmed the trial court’s decision, concluding that “[d]efendant could not raise
    [diminished capacity] as an affirmative defense and, therefore, should not be permitted to raise it
    in the guise of a reasonable doubt argument.” Id. at 641. We explained that the doctrine of
    diminished capacity allowed a defendant to offer evidence of a mental condition in relation to the
    defendant’s capacity to form the intent required for commission of the charged offense. Id. at
    640. We described the defense as follows:
    “Diminished capacity is considered a partial defense because it is not presented as
    an excuse or justification for a crime but, rather, as an attempt to prove that the
    defendant, because she was incapable of forming the requisite intent of the crime
    28
    No. 1-14-0725
    charged, is innocent of that crime but likely guilty of a lesser included offense.”
    Id. at 641.
    ¶ 67   Despite defendant’s claims to the contrary, we find that, like in Hulitt, defendant’s
    proposed evidence goes to the defense of diminished capacity, which does not exist in Illinois.
    Id.
    ¶ 68   Specifically with respect to the proposed expert testimony of Dr. Schuele, we find that
    the court did not abuse its discretion in choosing the exclude it. Our courts have held that the
    defendant’s mental state is a question of fact to be determined by the trier of fact. Id. at 637.
    Mental states “ ‘ “are not commonly established by direct evidence and may be inferred from the
    character of the defendant’s conduct and the circumstances surrounding the commission of the
    offense.” ’ ” Id. at 637 (quoting People v. Raines, 
    354 Ill. App. 3d 209
    , 220 (2004), quoting
    People v. Adams, 
    308 Ill. App. 3d 995
    , 1006 (1999)).
    ¶ 69   When deciding whether to admit expert testimony, the trial court should balance the
    probative value of the testimony against its prejudicial effect and should “carefully consider the
    necessity and relevance of the expert testimony in light of the particular facts of the case before
    admitting that testimony for the jury’s consideration.” People v. Lerma, 
    2016 IL 118496
    , ¶ 23.
    Relevant and probative testimony should be admitted, whereas misleading or confusing
    testimony should not be admitted. People v. Anderson, 
    2017 IL App (1st) 122640
    , ¶ 78 (citing
    People v. Tisdel, 
    338 Ill. App. 3d 465
    , 468 (2003)). Moreover, expert testimony is only necessary
    when the subject is both particularly within the witness’s experience and qualifications and
    beyond that of the average juror’s, and when it will aid the jury in reaching its conclusion, and
    expert testimony addressing matters of common knowledge is not admissible unless the subject
    is difficult to understand and explain. Lerma, 
    2016 IL 118496
    , ¶ 23.
    29
    No. 1-14-0725
    ¶ 70   In the absence of an insanity defense, we agree with the trial court that the proposed
    evidence would be irrelevant and serve only to confuse the jury. An expert may not give an
    opinion supporting the doctrine of diminished mental capacity, because, as we have previously
    stated, that doctrine is not recognized in Illinois. See Hulitt, 361 Ill. App. 3d at 641. From our
    reading of the record, it is apparent that defendant was attempting to circumvent the
    requirements of pleading and proving an insanity defense, by instead claiming that her bizarre
    behavior was indicative of her lacking the mental state necessary for first degree murder. In fact,
    the language used in Dr. Schuele’s evaluation was specifically tailored to an insanity defense,
    concluding that defendant “at the time of the offense, lacked substantial capacity to appreciate
    the criminality[ ]of her conduct due to a mental disease or defect.” See 720 ILCS 5/6-2 (West
    2008). Defendant, however, ultimately chose not to pursue that defense.
    ¶ 71   Examining the testimony of Dr. Schuele, we note several statements that would have
    confused and misled the jury, specifically regarding his opinion of the voluntariness of
    defendant’s actions. In particular, Dr. Schuele testified that, in his opinion, at the time of the
    offense, defendant was in a post-seizure state where she “showed signs of erratic behavior.” He
    also believed that defendant was not “in complete understanding of the situation,” and that she
    “fe[lt] threatened to an irrational degree,” describing her behavior as “paranoid and delusional.”
    Dr. Schuele, however, was not a psychiatrist, and explicitly stated that he was not making a
    psychiatric diagnosis. At no time during his testimony did Dr. Schuele state that defendant’s
    actions in shooting Officer Francis were involuntary. He testified that she was behaving
    “erratic[ly]” and “irrational[ly],” however, erratic or irrational behavior does not absolve
    defendant of responsibility for her actions. Dr. Schuele testified that a person is capable of
    30
    No. 1-14-0725
    engaging in volitional actions while in the postictal state, and specifically described the key
    actions in this case—holding and pointing a gun, and pulling the trigger—as “volitional act[s].”
    ¶ 72   Dr. Schuele also never testified as to when defendant allegedly suffered the seizure that
    left her in a postictal state at the time of the offense. There is no evidence that defendant had a
    seizure on the day of the incident. There is some suggestion that defendant may have had a
    seizure on June 28, 2008 or before, based on the handwritten note in her medical record from
    June 29, 2008, that she had been “postictal” the day before and was “[n]ow feeling better.”
    ¶ 73   The significance of Dr. Schuele’s testimony is also questionable because his testimony
    showed that his opinions were not based on a full and accurate understanding of the relevant
    events. First, Dr. Schuele acknowledged that he viewed an incomplete surveillance video of the
    incident, which did not include a full account of the events. Dr. Schuele also conceded that he
    did not view Officer Francis’s autopsy report, and testified that he did not recall that after
    shooting Officer Francis three times, defendant hid behind a car and shot in the direction of the
    responding officers.
    ¶ 74   Dr. Schuele also indicated during this testimony that the determination of whether an
    action is volitional or erratic was something that another person could “probably judge *** as
    [well] as” he could, describing certain actions that defendant engaged in prior to her encounter
    with Officer Francis as erratic. Because Dr. Schuele admitted that defendant was capable of both
    volitional and “erratic” acts while in a postictal state, and he effectively conceded that expert
    testimony would not be needed to determine which of defendant’s acts were volitional, Dr.
    Schuele’s proposed testimony was, admittedly, no longer in the realm where an expert opinion is
    needed. See Becker, 
    239 Ill. 2d at 235
     (“A trial court does not err in barring expert testimony
    where the matter at issue is not beyond the ken of the average juror”); Lerma, 
    2016 IL 118496
    , ¶
    31
    No. 1-14-0725
    23; Hulitt, 361 Ill. App. 3d at 638 (2005) (“The admissibility of psychiatric evidence regarding a
    defendant's intent or lack thereof, the ultimate issue in a murder prosecution, depends on whether
    the expert is to testify to facts requiring scientific knowledge not within the common knowledge
    of the jury.” (internal quotations and citations omitted)).
    ¶ 75   Additionally, Dr. Schuele’s opinion about defendant’s behavior was based in large part
    on his observations of the surveillance video, specifically observing that she “mimic[ked]”
    putting money into the fare box, and that she had her arms bent as she was following Barney.
    Having observed the surveillance video, we conclude that it would be difficult for Dr. Schuele to
    draw such conclusions from its viewing. The video is grainy and unclear, with much of the
    action—particularly that occurring outside the bus—obstructed from view. In particular, this
    court cannot determine whether defendant was “mimic[king]” putting money in the fare box. We
    would also find it to be quite a leap to conclude that defendant’s later actions were involuntary
    because defendant had her arms crossed and made a confusing remark to a bus passenger, and
    Dr. Schuele provided no support for such a conclusion. See People v. Mitchell, 
    2011 IL App (1st) 083143
    , ¶ 80 (“An expert’s opinion is only as valid as the basis and reasons for the opinion.
    A party must lay a foundation sufficient to establish the reliability of the bases for the expert’s
    opinion.” (internal citations and quotations omitted)).
    ¶ 76   For all of the above reasons, we find no abuse of discretion by the trial court in excluding
    the proposed testimony of Dr. Schuele.
    ¶ 77   In support of her contention that the proposed evidence would show that her actions were
    involuntary, defendant cites a number of cases, including People v. Chmilenko, 
    14 Ill. App. 3d 270
     (1973), People v. Nelson, 
    2013 IL App (3d) 120191
    , and People v. Martino, 
    2012 IL App (2d) 101244
    .
    32
    No. 1-14-0725
    ¶ 78    The defendant in Chmilenko was a prisoner who was convicted of escaping from custody.
    The parties stipulated that the defendant suffered from epilepsy, consisting of “ ‘periods when
    the [defendant] continues to function physically and can walk and talk, but during which the
    [defendant] lacks conscious awareness of what he is doing, lacks conscious intent to do what he
    does, and lacks any recollection of what he did during the seizure.’ ” Chmilenko, 14 Ill. App. 3d
    at 272. On appeal, the appellate court noted that unrebutted testimony at trial established that the
    defendant suffered a seizure as he was being loaded into a transport from a police station and that
    the police did not notice that the defendant had collapsed to the ground and loaded the other
    prisoners in the transport, leaving the defendant behind. Id. at 271-72. No evidence showed that
    the defendant had the intent to escape, but the testimony was that he had a seizure, woke up, did
    not know where he was, and went to his home. Id. at 272. The appellate court reversed the
    defendant’s conviction, finding the evidence that defendant had a seizure tended to raise doubt as
    to his ability to form the specific intent required by the statute because during a seizure, “ ‘the
    subject lacks conscious awareness of what he is doing, lacks conscious intent to do what he
    does.’ ” Id.
    ¶ 79    Here, however, defendant was not in the midst of a seizure when she shot Officer Francis,
    which could have rendered her actions completely involuntary like the actions at issue in
    Chmilenko. Instead, the proposed evidence sought to show that she was in the postictal period
    after a seizure, during which Dr. Schuele testified that she could engage in both volitional and
    erratic behavior. As stated above, Dr. Schuele did not testify that defendant’s actions were
    involuntary; instead, he testified that she was capable of engaging in volitional acts and,
    specifically, that pointing a gun and pulling the trigger are volitional acts.
    33
    No. 1-14-0725
    ¶ 80   The other cases that defendant relies on, Nelson, 
    2013 IL App (3d) 120191
    , and Martino,
    
    2012 IL App (2d) 101244
    , fare no better. In Nelson, the third district appellate court reversed the
    defendant’s conviction for telephone harassment because the “uncontroverted” expert testimony
    at trial regarding the defendant’s Tourette syndrome showed that the defendant acted pursuant to
    an “involuntary tic” and did not intend to dial the phone. Nelson, 
    2013 IL App (3d) 120191
    , ¶ 29.
    In Martino, the second district appellate court reversed the defendant’s conviction for aggravated
    domestic battery, where the police tased the defendant, and he fell onto his wife, breaking her
    arm. Because the defendant was “incapable of controlling his muscles” as a result of being tased,
    “his act of falling on [his wife] and breaking her arm was an involuntary act for which he cannot
    be held accountable.” Martino, 
    2012 IL App (2d) 101244
    , ¶ 15. Unlike in these cases, there was
    no evidence that defendant was acting “pursuant to an involuntary tic” or was “incapable of
    controlling h[er] muscles.”
    ¶ 81   For many of the same reasons, we also conclude that the trial court did not abuse its
    discretion in excluding the proposed lay witness testimony from defendant’s family members,
    boyfriend, and medical personnel who interacted with defendant on prior occasions. Like Dr.
    Schuele’s testimony, the proposed lay witness testimony was, at best, relevant to a diminished
    capacity defense. Additionally, none of the proposed lay witnesses were present at the scene of
    the offense, and each could testify only to having interacted with defendant several hours to four
    years prior to the incident. The testimony could have established, at most, that defendant had
    prior periods where she behaved “erratic[ally]” following seizures, but it would not have shown
    that she did not act voluntarily when she shot Officer Francis. Accordingly, we cannot say that
    the trial court’s ruling on the State’s motion in limine was arbitrary, fanciful, or unreasonable,
    and we find no abuse of discretion in excluding the proposed evidence.
    34
    No. 1-14-0725
    ¶ 82   Defendant next contends that the trial court erred in refusing to instruct the jury on
    involuntary manslaughter. Defendant, citing People v. Consago, 
    170 Ill. App. 3d 982
    , 986
    (1988), argues that the evidence supported that the jury could have found her actions merely
    reckless based on the trial evidence because “the defendant’s discharge of a weapon during a
    struggle is a well established form of reckless conduct.”
    ¶ 83   The parties disagree on the applicable standard of review for this issue as well. Defendant
    cites People v. Washington, 
    2012 IL 110283
    , ¶ 19, to contend that the determination of whether
    sufficient evidence exists to support the giving of a jury instruction is a question of law subject to
    de novo review. However, as the State points out, our supreme court has since clarified that
    holding, limiting it to the facts of that case, which “reviewed a question of law: whether a second
    degree murder instruction must be given as a mandatory counterpart to an instruction on self-
    defense.” People v. McDonald, 
    2016 IL 118882
    , ¶ 41. The supreme court then went on to hold
    that “when the trial court, after reviewing all the evidence, determines that there is insufficient
    evidence to justify the giving of a jury instruction, the proper standard of review of that decision
    is abuse of discretion.” Id. ¶ 42. Accordingly, we review this issue for an abuse of discretion.
    ¶ 84   “The offenses of involuntary manslaughter and first degree murder require different
    mental states, such that involuntary manslaughter requires a less culpable mental state than first
    degree murder.” People v. Jones, 
    219 Ill. 2d 1
    , 31 (2006). A defendant commits first degree
    murder when “he kills an individual without lawful justification and he knows that his acts create
    a strong probability of death or great bodily harm,” whereas a defendant commits involuntary
    manslaughter when he “performs acts that are likely to cause death or great bodily harm to
    another and he performs these acts recklessly.” People v. DiVincenzo, 
    183 Ill. 2d 239
    , 249-50
    35
    No. 1-14-0725
    (1998) (citing 720 ILCS 5/9-1(a)(2), 9-3(a) (West 1994)). Recklessness is defined in section 4-6
    of the Criminal Code of 1961 as follows:
    “A person is reckless or acts recklessly, when he consciously disregards a
    substantial and unjustifiable risk that circumstances exist or that a result will
    follow, described by the statute defining the offense; and such disregard
    constitutes a gross deviation from the standard of care which a reasonable person
    would exercise in the situation.” 720 ILCS 5/4-6 (West 2008).
    ¶ 85   In general, an instruction on a lesser offense is justified “where there is some evidence to
    support the giving of the instruction.” DiVincenzo, 
    183 Ill. 2d at
    249 (citing People v. Jones, 
    175 Ill. 2d 126
    , 132 (1997)). Specifically, an involuntary manslaughter instruction should be given if
    there is some credible evidence in the record that would reduce the crime of first degree murder
    to involuntary manslaughter. 
    Id.
     (citing People v. Foster, 
    119 Ill. 2d 69
    , 87 (1987), and People v.
    Ward, 
    101 Ill. 2d 443
    , 451 (1984)). However, a manslaughter instruction should not be given
    where the evidence shows that the homicide was murder, not manslaughter. People v. Arnett, 
    217 Ill. App. 3d 626
    , 634 (1991) (citing People v. Simpson, 
    74 Ill. 2d 497
     (1978)).
    ¶ 86   Although a defendant “is entitled to an involuntary manslaughter instruction if there is
    ‘slight’ evidence upon which a given theory could be based, there must be some evidence of the
    reckless conduct.” People v. Eason, 
    326 Ill. App. 3d 197
    , 209 (2001) (citing People v. Trotter,
    
    178 Ill. App. 3d 292
    , 298 (1988)). The appellate court has held that:
    “[c]ertain factors may suggest whether a defendant acted recklessly and whether
    an involuntary manslaughter instruction is appropriate: disparity in size and
    strength between the defendant and the victim, the severity of the victim’s
    injuries, whether the defendant used his bare fists or a weapon, whether there
    36
    No. 1-14-0725
    were multiple wounds, or whether the victim was defenseless.” Eason, 326 Ill.
    App. 3d at 209 (citing DiVincenzo, 
    183 Ill. 2d at 251
    ).
    Conversely, “Illinois courts have consistently held that when the defendant intends to fire a gun,
    points it in the general direction of his or her intended victim, and shoots, such conduct is not
    merely reckless and does not warrant an involuntary-manslaughter instruction.” (Internal
    quotation marks omitted.) People v. Sipp, 
    378 Ill. App. 3d 157
    , 164 (2007).
    ¶ 87   While we agree that a gun discharging during a struggle may be indicative of
    recklessness, there was no evidence in the record that would tend show that the gun accidentally
    discharged during a struggle. The evidence in this case showed that Officer Francis’s gun had
    two internal safeties and could not fire unless the trigger was pulled. Additionally, there was no
    evidence presented that would tend to show that defendant and Officer Francis were struggling
    over the gun itself. Instead, the witnesses who saw the struggle at the time of the initial gunshot
    testified that Officer Francis was getting up from the ground and holding his open and empty
    hands by his face when defendant fired the gun. The evidence also showed that defendant shot
    Officer Francis two more times after the initial gunshot, and there was evidence that Officer
    Francis was on the ground at the time of those gunshots based on abrasions on his back and
    “flattening” on one of the bullets. There was also evidence that defendant then shot at the
    responding officers, and tried to hide under Officer Francis’s vehicle to evade apprehension. This
    context to the offense belies any suggestion that defendant’s actions were merely “reckless” or
    that defendant accidentally shot Office Francis during a struggle.
    ¶ 88   In these circumstances, we find no evidence from which the jury could have found
    defendant’s conduct to be merely reckless. Given the evidence that was presented in the trial
    37
    No. 1-14-0725
    court, we conclude that the trial court did not abuse its discretion in denying defendant’s request
    for an instruction on involuntary manslaughter.
    ¶ 89    Defendant next contends that the trial court erred in refusing to allow defense counsel to
    impeach witness Donna Barney regarding the State having paid for her to stay in a hotel so that
    she could be available for trial. She specifically asserts that where Barney “recanted her pre-trial
    statement that she saw Officer Francis put [defendant] in a headlock, it was unfair to deny the
    defense the opportunity to elicit a potentially pro-State bias.”
    ¶ 90    On questions of the admissibility of evidence, we will not substitute our judgment for that
    of the trial court unless the record clearly shows the trial court abused its discretion. People v.
    Cookson, 
    215 Ill. 2d 194
    , 213 (2005) (citing Ward, 
    101 Ill. 2d at 455-56
    ). As stated, an abuse of
    discretion occurs “only where the [trial court’s] ruling is arbitrary, fanciful, or unreasonable, or
    where no reasonable person would take the view adopted by the trial court.” (Internal quotation
    marks omitted.) People v. Phillips, 
    392 Ill. App. 3d 243
    , 272 (2009).
    ¶ 91    As defendant points out, the credibility of a witness may be attacked by any party,
    including the party calling the witness. Ill. S. Ct. R. 238 (eff. Apr. 11, 2001). The confrontation
    clause of the sixth amendment of the United States Constitution (U.S. Const., amend. VI)
    guarantees a defendant the right to cross-examine a witness against him for the purpose of
    showing the witness’s bias, interest or motive to testify falsely. People v. Harris, 
    123 Ill. 2d 113
    ,
    144 (1988) (citing Davis v. Alaska, 
    415 U.S. 308
     (1974)). The confrontation clause, however,
    does not prevent the trial judge from imposing limits on defense counsel’s inquiry into potential
    bias of a witness, and a trial judge retains wide latitude to impose reasonable limits on such
    cross-examination based on concerns about harassment, prejudice, confusion of the issues, the
    witness’s safety, or interrogation that is repetitive or of little relevance. People v. Kliner, 
    185 Ill. 38
    No. 1-14-0725
    2d 81, 134 (1998) (citing Delaware v. Van Arsdall, 
    475 U.S. 673
    , 679 (1986), and Harris, 
    123 Ill. 2d at 144
    ). As the United States Supreme Court observed in Delaware v. Fensterer, 
    474 U.S. 15
    , 20 (1985), “the Confrontation Clause guarantees an opportunity for effective cross-
    examination, not cross-examination that is effective in whatever way, and to whatever extent, the
    defense might wish.” (Emphasis omitted.) “[P]otential limitations on a defendant’s right to cross-
    examine a witness as to bias, interest or motive to testify falsely are clearly rooted in the
    relevancy concepts of materiality and probative value.” People v. Green, 
    339 Ill. App. 3d 443
    ,
    455 (2003). While a defendant in a criminal prosecution has the right to cross-examine a witness
    regarding her bias, interest, or motive to testify falsely, the evidence used to impeach the witness
    must give rise to the inference that the witness has something to gain by her testimony. People v.
    Leak, 
    398 Ill. App. 3d 798
    , 822 (2010) (citing People v. Sims, 
    192 Ill. 2d 592
    , 624-25 (2000),
    and People v. Triplett, 
    108 Ill. 2d 463
    , 475-76 (1985)). Thus, the evidence used to establish bias
    must be timely, unequivocal and directly related, and may not be remote or uncertain. 
    Id.
     (citing
    Sims, 
    192 Ill. 2d at 625
    ). Evidence that is not relevant and that would only confuse or mislead the
    jury is also properly excluded. People v. Averhart, 
    311 Ill. App. 3d 492
    , 500 (1999). Moreover,
    the improper denial of a defendant’s constitutional right to cross-examine a witness regarding
    bias does not always mandate reversal, but may be found to be harmless error. See Kliner, 185
    Ill. 2d at 134 (citing Van Arsdall, 
    475 U.S. at 684
    ).
    ¶ 92   Initially we disagree with defendant’s characterization of Barney’s trial testimony as
    “recant[ing] her pre-trial statement” about the headlock. Barney testified that at the time of her
    testimony—more than five years after the incident—she could not recall the exact details of what
    was happening when she looked back at defendant and Officer Francis. She acknowledged that
    she told the detective on the scene that she saw Officer Francis appear to place defendant in a
    39
    No. 1-14-0725
    headlock with his arm, and agreed that if it was in the detective’s notes she said it, but testified
    that she did not have a specific recollection of the headlock at the time of her testimony. In these
    circumstances, Barney’s trial testimony cannot fairly be described as a “recantation,” but rather a
    lapse in memory.
    ¶ 93      The State contends that the proposed impeachment regarding Barney’s housing was
    properly excluded as it would have “open[ed] an irrelevant line of inquiry that would have led to
    further complications and confusion.” It asserts that the fact that it paid for Barney’s hotel “did
    not give rise to an inference of bias where it was not given in consideration of her potential
    testimony, but rather to make her available for the defense.” (Emphasis in original.) Defendant,
    however, argues that the defense did not ask the State to provide housing to Barney, and merely
    asked that she be made available for “an interview,” which, defendant claims, “could have been
    done without providing any housing at all.” Defendant, however, did not specify before the trial
    court, or this court, how Barney could have been made available either for an interview or for
    trial short of providing her with temporary housing.
    ¶ 94      In these circumstances, we find no abuse of discretion by the trial court in concluding that
    the proposed impeachment could confuse or mislead the jury, and in refusing to allow it. Given
    the wide discretion afforded to the trial court on questions of the admissibility of evidence, we do
    not find the trial court’s ruling to be arbitrary, fanciful, or unreasonable. Phillips, 392 Ill. App. 3d
    at 272.
    ¶ 95      Nonetheless, even if we were to find any error in the trial court’s restriction, we would
    find such error to be harmless. The only change in Barney’s testimony that defendant contends
    could have been motivated by a “pro-State bias” is Barney’s failure to remember her prior
    observation of a headlock. Although the trial court did not allow impeachment on this issue
    40
    No. 1-14-0725
    based on Barney’s housing, defendant was allowed to impeach Barney through the use of her
    prior inconsistent statement. In fact, immediately following Barney’s testimony, defense counsel
    called Detective Heerdt, who testified and confirmed that, during his interview with Barney after
    the incident, she told him that Officer Francis appeared to put defendant in a headlock with his
    arm. Accordingly, defendant was given sufficient opportunity to effectively impeach Barney’s
    testimony, even if it was not “in whatever way, and to whatever extent” she wished. See
    Fensterer, 
    474 U.S. at 20
    .
    ¶ 96   Defendant disagrees, arguing that “the fact that the defense proved up this one prior
    inconsistent statement did nothing to even hint at the broader point of bias.” However, as pointed
    out above, defendant has pointed to no other statement or testimony by Barney that allegedly was
    motivated by a “pro-State bias” as a result of her being provided with temporary housing. In
    these circumstances, we find that any alleged error in disallowing the proposed impeachment
    was harmless beyond a reasonable doubt.
    ¶ 97   Finally, defendant contends that the statute mandating a natural life sentence for the first
    degree murder of a peace officer conviction is unconstitutional as applied to her. Defendant
    argues that the mandatory life sentence violates the U.S. and Illinois Constitutions because it
    precluded any consideration of mitigating factors, including her medical condition as described
    above, her lack of prior convictions, and her “advanced age.” Defendant raises an as-applied
    constitutional challenge, which is a legal question that we review de novo. People v. Fisher, 
    184 Ill. 2d 441
    , 448 (1998).
    ¶ 98   The eighth amendment, applicable to the states by the fourteenth amendment (see
    Robinson v. California, 
    370 U.S. 660
    , 666 (1962)), provides that “[e]xcessive bail shall not be
    required, nor excessive fines imposed, nor cruel and unusual punishments inflicted” (U.S. Const.,
    41
    No. 1-14-0725
    amend. VIII). Additionally, article I, section 11, of the Illinois Constitution of 1970 provides that
    “[a]ll penalties shall be determined both according to the seriousness of the offense and with the
    objective of restoring the offender to useful citizenship.” Ill. Const. 1970, art. I, § 11.
    ¶ 99    All statutes carry a strong presumption of constitutionality and “the party challenging the
    statute bears a heavy burden of clearly establishing its constitutional infirmities. [Citation.] Any
    reasonable construction which affirms a statute’s constitutionality must be adopted, and any
    doubt regarding a statute’s construction must be resolved in favor of the statute’s validity.”
    People v. Morgan, 
    203 Ill. 2d 470
    , 486 (2003). We generally defer to the legislature in the
    sentencing arena
    “because the legislature is institutionally better equipped to gauge the seriousness
    of various offenses and to fashion sentences accordingly. [Citation.] The
    legislature’s discretion in setting criminal penalties is broad, and courts generally
    decline to overrule legislative determinations in this area unless the challenged
    penalty is clearly in excess of the general constitutional limitations on this
    authority.” People v. Sharpe, 
    216 Ill. 2d 481
    , 487 (2005).
    ¶ 100 Section 5-8-1(a)(1)(c)(iii) of the Unified Code of Corrections (Code) (730 ILCS 5/5-8­
    1(a)(1)(c)(iii) (West 2008)) mandates a sentence of natural life imprisonment for an adult
    offender when he or she is
    “found guilty of murdering a peace officer *** when the peace officer *** was
    killed in the course of performing his official duties, or to prevent the peace
    officer *** from performing his official duties, or in retaliation for the peace
    officer *** performing his official duties, and the defendant knew or should have
    known that the murdered individual was a peace officer.”
    42
    No. 1-14-0725
    ¶ 101 Defendant, citing People v. Miller, 
    202 Ill. 2d 328
    , 338 (2002), argues that this statute
    violates the Illinois proportionate penalties clause as applied to her because the punishment “is
    cruel, degrading, or so wholly disproportionate to the offense committed as to shock the moral
    sense of the community” in light of her mitigating circumstances. She acknowledges that the
    offense was “serious and tragic” but contends that it was “not so abhorrent that it warrants the
    automatic imposition of the most severe sentence in Illinois.”
    ¶ 102 As our supreme court has “repeatedly recognized,” the legislature “has the power to
    prescribe penalties for defined offenses, and that power necessarily includes the authority to
    prescribe mandatory sentences, even if such sentences restrict the judiciary’s discretion in
    imposing sentences.” People v. Huddleston, 
    212 Ill. 2d 107
    , 129 (2004). “The rehabilitative
    objective of article I, section 11, should not and does not prevent the legislature from fixing
    mandatory minimum penalties where it has been determined that no set of mitigating
    circumstances could allow a proper penalty of less than natural life.” People v. Taylor, 
    102 Ill. 2d 201
    , 206 (1984).
    ¶ 103 As relevant to this case, the legislature has determined that the seriousness of the offense
    of murdering a police officer mandates a sentence of natural life imprisonment, such that “no set
    of mitigating circumstances” could properly allow for a lesser penalty. 
    Id.
     This court has also
    noted that a statute that punishes more severely those persons who murder, or attempt to murder,
    a peace officer in the line of duty is justified because it serves a more specific purpose than
    simply deterring people from unlawfully killing. People v. Henderson, 
    354 Ill. App. 3d 8
    , 16
    (2004) (citing People v. Hill, 
    199 Ill. 2d 440
    , 458 (2002)). Specifically:
    “Police officers play a vital role in our society. The demands of their position
    regularly place officers in potentially violent and dangerous situations. The need
    43
    No. 1-14-0725
    to protect these officers and to punish more severely those who interfere with
    their duties is a determination that the legislature is in a better position than this
    court to make.” Henderson, 354 Ill. App. 3d at 18.
    ¶ 104 We also note that defendant’s contention that a mandatory life sentence is
    unconstitutionally disproportionate in light of the mitigating circumstances is undermined by the
    record of the sentencing hearing, which suggests that the trial court would have imposed the
    same sentence, even if it had discretion. The record shows that, despite the mandatory sentencing
    scheme, the trial court reviewed the mitigating circumstances and determined that defendant had
    “earned” a natural life sentence and that her actions “warrant[ed] that sentence.”
    ¶ 105 In light of the above, we conclude that defendant’s mandatory sentence of natural life for
    murdering a police officer does not shock the moral sense of the community and does not violate
    the proportionate penalties clause of the Illinois Constitution as applied to her. See People v.
    Ybarra, 
    2016 IL App (1st) 142407
    , ¶ 30.
    ¶ 106 Based on the foregoing, we affirm the judgment of the circuit court.
    ¶ 107 Affirmed.
    44