Johnson v. Premo , 361 Or. 688 ( 2017 )


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  • 688	                           August 3, 2017	                            No. 39
    IN THE SUPREME COURT OF THE
    STATE OF OREGON
    MARTIN ALLEN JOHNSON,
    Respondent on Review,
    v.
    Jeff PREMO,
    Superintendent,
    Oregon State Penitentiary,
    Petitioner on Review.
    (CC 06C16178; CA A154129; SC S064132)
    On review from the Court of Appeals.*
    Argued and submitted January 10, 2017.
    Benjamin Gutman, Solicitor General, Salem, argued the
    cause and filed the briefs for petitioner on review. Also on
    the briefs was Ellen F. Rosenblum, Attorney General.
    Daniel J. Casey, Portland, argued the cause and filed
    the briefs for respondent on review. Also on the briefs was
    Robert L. Huggins, Jr.
    Jeffrey Erwin Ellis, Portland, filed the brief on behalf
    of amicus curiae Oregon Criminal Defense Lawyers
    Association.
    Before Balmer, Chief Justice, and Kistler, Walters,
    Landau, and Nakamoto, Justices, and Brewer, Senior
    Justice pro tempore.**
    BREWER, S.J.
    The decision of the Court of Appeals and the judgment of
    the circuit court are affirmed.
    _______________
    **  Appeal from Marion County Circuit Court, Don A. Dickey, Judge. 
    277 Or App 225
    , 370 P3d 553 (2016).
    **  Baldwin, J., retired March 31, 2017, and did not participate in the decision
    of this case. Flynn and Duncan, JJ., did not participate in the consideration or
    decision of this case.
    Cite as 
    361 Or 688
     (2017)	689
    Case Summary: Petitioner, who was convicted of aggravated murder and
    sentenced to death, sought post-conviction relief, alleging that he received inad-
    equate assistance of counsel in violation of Article I, section 11, of the Oregon
    Constitution. More particularly, petitioner alleged that his trial counsel failed
    to adequately investigate the cause of the victim’s death. At the criminal trial,
    the state presented evidence that petitioner had strangled the victim, and peti-
    tioner’s defense counsel offered evidence instead that petitioner had drowned the
    victim but had done so in a county other than the county in which he was tried,
    and therefore argued that petitioner should be acquitted based on the state’s fail-
    ure to prove the proper venue. At his post-conviction trial, petitioner presented
    evidence that the opinions of both the state and defense experts that testified at
    the criminal trial as to the cause of death were incorrect, and the victim actually
    died of a morphine overdose. The post-conviction court granted petitioner a new
    trial, and the Court of Appeals affirmed. Held: Petitioner received inadequate
    assistance of trial counsel. To be entitled to post-conviction relief based on inade-
    quate assistance of counsel, a petitioner must show that counsel failed to exercise
    reasonable professional skill and judgment, and that the petitioner suffered prej-
    udice as a result of counsel’s inadequacy. Tactical decisions made by counsel must
    be grounded on reasonable investigation. In this case, counsel knew there was a
    discrepancy between petitioner’s factual account of what had occurred and what
    the state and defense forensic experts opined had occurred. Counsel also knew
    that the medical evidence as complicated, and that there was evidence that the
    victim had ingested numerous drugs before her death. In that circumstance, and
    in light of the undesirability of the venue defense, counsel should have sought out
    additional information concerning the drugs in the victim’s system at the time of
    her death, in order to try to develop a theory that petitioner’s killing of the victim
    was unintentional, or alternatively, in the penalty phase that, even though inten-
    tional, it was not the type of crime for which the death penalty should be imposed.
    Affirmed.
    690	                                                      Johnson v. Premo
    BREWER, S. J.
    In a two-phased jury trial, petitioner was convicted
    of aggravated murder and sentenced to death for killing
    a fifteen-year-old girl, HF. The state’s theory of the case
    was that petitioner had killed HF intentionally in further-
    ance of, or in an effort to conceal, the commission of sexual
    offenses against her. This court affirmed his convictions and
    sentence. State v. Johnson, 
    340 Or 319
    , 131 P3d 173, cert
    den, 
    359 US 1079
     (2006). Petitioner then brought this action
    for post-conviction relief, asserting that he received inad-
    equate assistance of trial counsel in violation of Article 1,
    section 11, of the Oregon Constitution. The post-conviction
    court granted relief on one ground and denied relief on
    other grounds, and the Court of Appeals affirmed. Johnson
    v. Premo, 
    277 Or App 225
    , 370 P3d 553 (2016). Respondent
    sought review in this court. On review, we conclude that
    the post-conviction court and the Court of Appeals correctly
    determined that petitioner is entitled to post-conviction
    relief.
    At petitioner’s criminal trial, the state presented
    evidence that petitioner drugged HF with morphine, raped
    her, strangled her to death, then threw her body off a bridge.
    Petitioner did not testify. The sole defense theory presented
    by his trial counsel, Walker and Peters, was that HF had
    not died by strangulation as theorized by the state, but,
    instead, had died of drowning after petitioner threw her off
    the bridge. As a consequence, counsel argued, petitioner was
    entitled to an acquittal because the state had not initiated
    the prosecution in the county in which he had drowned HF.1
    As noted, that defense was unsuccessful, and the jury con-
    victed petitioner and sentenced him to death.
    In this post-conviction proceeding, petitioner
    asserted, among other things, that the venue defense that his
    criminal trial counsel advanced had virtually no chance of
    persuading a jury to acquit him. More specifically, petitioner
    1
    Venue generally lies in the county in which the offense occurred. ORS
    131.305. At the time of petitioner’s criminal trial, venue was considered an ele-
    ment of a criminal offense. In State v. Mills, 
    354 Or 350
    , 312 P3d 515 (2013), this
    court concluded that venue was not an element of an offense that needed to be
    found as fact by a jury beyond a reasonable doubt.
    Cite as 
    361 Or 688
     (2017)	691
    argued that, because, based on the evidence in the record,
    the jury could have found that the place of HF’s death could
    not be readily determined, a venue defense was not viable
    in light of the alternative venue provisions of ORS 131.325.2
    Moreover, counsel’s sole reliance on such a weak technical
    defense made the penalty phase of his trial (during which
    the jury considered aggravating and mitigating factors
    and determined whether a sentence of death is appropri-
    ate) much more challenging. Petitioner asserted, instead,
    that his counsel should have pursued a morphine-overdose
    theory of the case, in light of petitioner’s statement to his
    defense team that he woke up after having sex with HF and
    discovered that she was dead. Petitioner further asserted
    that, if counsel had consulted a toxicologist, they would have
    developed credible evidence that HF died of a drug overdose,
    thus rebutting the state’s evidence that she died by stran-
    gulation. With respect to the issue of prejudice, petitioner
    argued that counsel’s failure to pursue a more viable theory
    of defense that actually conformed to petitioner’s story had
    a tendency to affect the outcome of his criminal trial. The
    post-conviction court agreed with petitioner with respect
    to that claim and, accordingly, granted relief. The Court of
    Appeals affirmed.
    The state’s primary argument on review is that
    defense counsel, having retained an expert who opined
    that the cause of the victim’s death was drowning, was not
    required to seek out additional experts to try to establish
    a cause of death—morphine-overdose—that had been ruled
    out by both prosecution and defense experts. As explained
    below, we do not view the relevant inquiry as how many
    experts should have been consulted; the evaluation of coun-
    sel’s adequacy is more nuanced than that. The dispositive
    2
    ORS 131.325 provides:
    “If an offense is committed within the state and it cannot readily be
    determined within which county the commission took place, * * * trial may be
    held in the county in which the defendant resides, or if the defendant has no
    fixed residence in this state, in the county in which the defendant is appre-
    hended or to which the defendant is extradited.”
    The state initially alleged that the crimes had occurred in Washington County,
    but amended the indictment to allege venue under ORS 131.325. The state pre-
    sented evidence at the criminal trial that petitioner resided in, and later was
    extradited to, the county in which he was tried.
    692	                                                      Johnson v. Premo
    issue, rather, is whether adequate trial counsel would have
    attempted to develop a theory of defense that HF already
    was dead from a drug overdose when petitioner threw her
    body off the bridge.
    I. FACTS
    A.  Evidence Adduced at Petitioner’s Criminal Trial
    We recount the pertinent facts adduced at peti-
    tioner’s criminal trial. On February 23, 1998, HF went to
    petitioner’s house in Washington County to play computer
    games. Petitioner previously had provided HF with drugs
    and alcohol, and had expressed sexual interest in her.
    The following day, HF’s body was discovered on a beach in
    Clatsop County near the Astoria Bridge at the mouth of the
    Columbia River. Petitioner fled the state shortly after being
    interviewed by police concerning his possible involvement in
    HF’s death, and he was not apprehended for almost a year.
    At trial, the state presented evidence that peti-
    tioner had driven to the Astoria area and that HF’s
    blood was found on his car. The state’s medical examiner,
    Dr. Hartshorne, opined that HF had died by strangulation,
    noting fingerprint-shaped bruises on her neck and petechiae
    on her face. In addition, the state’s evidence showed that HF
    had a significant amount of morphine in her system, and
    semen in her vagina matched petitioner’s DNA. The state
    introduced evidence that petitioner “habitually preyed on
    underage girls, taking them to nightclubs, providing them
    with alcohol and drugs, engaging them in consensual sex-
    ual relations when possible and, most significantly, sexu-
    ally abusing them while they were rendered unconscious by
    drugs that he had provided to them.” Johnson, 
    340 Or at 321
    .3
    Petitioner’s counsel adduced expert testimony from
    Dr. Ferris, a forensic pathologist who had extensive experi-
    ence in examining bodies recovered from water. Noting in
    particular that water and silt had been found in her lungs,
    3
    Much of the initial focus of petitioner’s defense team had been on trying to
    exclude evidence of petitioner’s history of drugging and sexually assaulting other
    teenagers, but that strategy ultimately proved unsuccessful. See 
    340 Or at
    337-
    42 (concluding that such evidence was admissible under OEC 404(3)).
    Cite as 
    361 Or 688
     (2017)	693
    Ferris opined that the victim had not died from strangula-
    tion but, rather, had drowned. Both Ferris and Hartshorne
    opined that the amount of morphine in the victim’s system
    was insufficient to have caused her death. Ferris character-
    ized the amount of morphine in the victim’s body as rela-
    tively low, although Hartshorne believed that the amount
    was significant enough that it could have affected the vic-
    tim’s ability to fight off a strangulation attack. Both Ferris
    and Hartshorne acknowledged that the victim showed signs
    of pneumonia from having aspirated vomit, which they con-
    cluded had occurred when she was unconscious due to the
    morphine.
    In sum, there was unrefuted evidence that petitioner
    had had sexual intercourse with the victim, that the victim
    had been rendered unconscious due to morphine ingestion,
    that there were injuries on the victim’s body, including her
    neck, and that petitioner had thrown her off a bridge.
    The disputed facts centered on how—and by exten-
    sion where—petitioner had killed the victim, not on whether
    he had killed her. In light of Ferris’s testimony, petitioner’s
    trial counsel argued to the jury that petitioner should be
    acquitted of aggravated murder because the crime had not
    occurred in Washington County as alleged by the state but,
    instead, was committed in Clatsop County when petitioner
    threw HF off the bridge. It followed, defense counsel argued,
    that the state had failed to prove the venue element of the
    offense. Defense counsel acknowledged the terms of ORS
    131.325, but argued that that statute did not authorize venue
    in Washington County because the place of the victim’s death
    readily could be determined to be Clatsop County.
    As noted, counsel did not present any ground for the
    jury to acquit petitioner other than the venue defense, nor
    did counsel argue that there was any basis to convict peti-
    tioner of a lesser crime, although the jury was instructed
    on lesser-included offenses. The jury convicted petitioner of
    aggravated murder and sentenced him to death.
    B.  Evidence Adduced at the Post-Conviction Trial
    In this proceeding, petitioner asserted, in pertinent
    part, that both Hartshorne and Ferris were wrong about
    694	                                                      Johnson v. Premo
    the cause of HF’s death, and that she actually died of a drug
    overdose. Petitioner alleged that his trial counsel was inad-
    equate in failing to develop and present that theory of death
    to the jury. More specifically, petitioner asserted that his
    counsel should have developed a theory that HF had con-
    sensually taken drugs and had sex with him,4 and that she
    had died of an accidental overdose.
    In support of that claim, petitioner adduced evi-
    dence that, early in the investigative process, he had told his
    defense team that, shortly before her death, HF had will-
    ingly consumed alcohol, marijuana, morphine and other opi-
    oids with him. He also indicated that they had engaged in
    sexual intercourse. According to petitioner’s account, he fell
    asleep, awakened at one point to find HF choking and vom-
    iting, and helped her to the bathroom. He fell asleep again,
    and when he awoke later, he discovered that she was dead.
    He then wrapped her in a blanket, put her in his car, drove
    her to the coast, then threw her off the Astoria Bridge.
    Conflicting evidence was presented as to whether
    petitioner also told the defense team that he was not sure
    whether HF was dead when he threw her off the bridge. The
    trial court did not explicitly resolve that factual issue. It did,
    however, make several findings of fact and conclusions of law
    that implicitly resolved that conflict in the evidence in favor
    of petitioner’s story that he had told counsel that the victim
    had died in Washington County.5 Accordingly, we accept the
    post-conviction court’s implicit factual determination that
    4
    Petitioner has referred at various points to the sexual contact as “consen-
    sual.” We understand petitioner’s use of the term “consensual” to be colloquial
    rather than legal. Under Oregon law, a 15-year-old cannot “consent” to sexual
    intercourse. See generally State v. Ofodrinwa, 
    353 Or 507
    , 300 P3d 154 (2013).
    5
    In particular, the post-conviction court stated:
    “Walker admits that Petitioner told him that Petitioner found HF dead in bed
    * * *. So trial counsel knew that unless Petitioner was quite mistaken over
    a period of some time and after close contact with the body handling it in
    different occurrences, it was likely as a fact that HF was dead when she left
    Washington County. * * *
    “* * * * *
    “[Walker and Peters] reasonably knew that even with difficulties of
    presenting morphine overdose (for example, it might reasonably ‘require’
    Petitioner to take the stand), factually it was an option. * * *
    “* * * * *
    Cite as 
    361 Or 688
     (2017)	695
    defense counsel knew that the venue defense was inconsis-
    tent with their client’s version of the facts.
    The majority of petitioner’s evidence in support of
    the pertinent claim consisted of expert testimony that the
    victim did not die either from strangulation or from drown-
    ing, but, rather, that she died from a drug overdose. Among
    other evidence, petitioner presented testimony from Ferris,
    who, as noted, had testified at the criminal trial that the
    victim died from drowning. Ferris testified in the post-
    conviction proceeding that, despite his former opinion, he
    had come to believe that HF actually died of a morphine
    overdose. Ferris further testified that petitioner’s trial coun-
    sel had withheld information from him about petitioner’s
    account that he had found the victim dead in bed before
    throwing her off the bridge.
    The post-conviction court explicitly found Ferris not
    to be credible, concluding that his testimony was not “help-
    ful in any manner” to petitioner.6 However, the court did
    credit testimony that petitioner presented from two addi-
    tional expert witnesses, Dr. Julien and Dr. Ophoven. Julien,
    a retired anesthesiologist, opined that the amount of mor-
    phine in HF’s body was sufficient to have caused her death,
    and concluded that it was “very likely” that she had died of
    a morphine overdose, assuming she had not developed a tol-
    erance to opioids. Ophoven, a forensic pathologist, testified
    similarly that HF had a potentially lethal level of morphine
    in her bloodstream. Ophoven also testified that she did not
    observe clinical findings typically associated with drown-
    ing, and that the injuries to HF’s neck were not indicative of
    death by strangulation, given the lack of damage to internal
    structures in her neck. Although Ophoven could not defini-
    tively rule out other possible causes of death, she ultimately
    opined that HF likely had died of a morphine overdose. Like
    “[Walker and Peters] knew that if Petitioner was correct as to where she
    died, that as a fact, HF did not die by drowning because she was already
    dead.”
    (Emphasis in original.)
    6
    The post-conviction court noted extensive evidence in the record that coun-
    sel had informed Ferris that petitioner had asserted that HF had overdosed on
    drugs, which contradicted Ferris’s testimony at the post-conviction trial.
    696	                                                      Johnson v. Premo
    Julien, Ophoven based her opinion on an assumption that
    HF had not built up a tolerance to opioids.
    The state’s expert witness at the post-conviction
    trial, Dr. Rosenblum, an anesthesiologist, did not offer an
    opinion as to the likely cause of HF’s death. However, he
    conceded that the amount of morphine in HF’s system “could
    actually represent a lethal dose.”
    C.  The Post-Conviction Court’s Decision
    The post-conviction court acknowledged that there
    was evidence that Walker had considered the morphine-
    overdose theory as a defense.7 However, the court opined
    that, if defense counsel had “considered and pursued” that
    theory, they would have either (1) not presented Ferris’s
    opinion as to the cause of death and instead have prepared
    to use petitioner as a witness in support of a drug overdose
    theory of death; or (2) sought the opinion of a toxicologist
    to support an overdose theory of death. The post-conviction
    court acknowledged that the first alternative alone would
    not have been viable, in light of petitioner’s vulnerability to
    impeachment on cross-examination,8 as well as the strength
    of the medical examiner’s testimony.
    The post-conviction court’s analysis, therefore,
    rested on whether counsel should have pursued the sec-
    ond possibility. The court acknowledged that an overdose
    theory might, in fact, have required petitioner to take the
    stand, but the court nevertheless concluded that it “factu-
    ally it was an option.” (Emphasis in original.) The court
    explained that the drowning theory advanced by Ferris not
    only was inconsistent with petitioner’s version of the facts,
    but “there was virtually little chance that any jury would
    acquit upon Petitioner’s defense which acknowledged that
    7
    In particular, the post-conviction court cited Walker’s deposition testimony
    that Ferris’s confidence about the cause of HF’s death factored into his decision to
    pursue the drowning theory rather than a morphine-overdose theory.
    8
    As noted above, the defense team knew from pretrial rulings that evidence
    would be admitted about petitioner’s prior drugging and sexual assaults of other
    teenaged victims. In addition, petitioner had a criminal history and other pend-
    ing criminal charges. Given those factors, as well as the facts that petitioner had
    related to the defense team about what had occurred, we understand the post-
    conviction court to have recognized that adequate counsel would have understood
    the significant risks of having petitioner testify.
    Cite as 
    361 Or 688
     (2017)	697
    Petitioner killed [HF].” The court similarly described the
    venue defense that counsel had pursued as “more than just
    distasteful,” and one on which a jury was “very unlikely” to
    acquit.
    The post-conviction court concluded that, in light
    of the patent weakness of the venue defense,9 trial counsel
    could “not simply hide behind the expert’s opinion because
    trial counsel knew there was another factual defense which
    was at least plausible even if it was difficult under the cir-
    cumstances to prove.” The court ultimately concluded:
    “The point here isn’t that trial counsel made an informed
    choice after due diligence toward being well informed on
    potential defenses, but that trial counsel limited the uni-
    verse of options from which to make an informed decision
    by choosing not to consider hiring a toxicologist. Thus, trial
    counsel made a choice of defense without due diligence
    toward being informed.”
    The court further concluded that petitioner was
    prejudiced by counsel’s failure to pursue the overdose the-
    ory; the court noted, in particular, that all the experts at the
    post-conviction trial had testified that the amount of mor-
    phine found in HF’s system was, at least possibly, a fatal
    level. The court therefore granted petitioner relief in the
    form of a new trial.
    D.  The Court of Appeals Opinion
    On appeal from the ensuing judgment, the Court
    of Appeals rejected the state’s assertion that the post-
    conviction court’s conclusion meant, in effect, that adequate
    counsel always must consult additional experts to seek opin-
    ions supporting a factual theory advocated by the client, even
    after multiple experts already had ruled out that theory.
    Johnson, 277 Or App at 236. Relying on this court’s decision
    in Lichau v. Baldwin, 
    333 Or 350
    , 361, 39 P3d 851 (2002),
    and the post-conviction court’s determination that counsel
    knew that a drug overdose theory of defense was “plausi-
    ble,” the Court of Appeals concluded that counsel’s decision
    to limit the investigation of that defense “was not based on a
    9
    Peters acknowledged in the post-conviction trial that he understood the
    venue defense to be very undesirable.
    698	                                           Johnson v. Premo
    reasonable evaluation of the likely costs and potential ben-
    efits to petitioner.” Johnson, 277 Or at 239 (internal quota-
    tion marks and citations omitted). In particular, the Court
    of Appeals noted that the post-conviction court had found
    that “a request to hire a toxicologist would most likely have
    been granted because there would not have been any time
    or cost constraints associated with the request.” Id. As the
    Court of Appeals saw the calculus, the costs of pursuing the
    investigation would have been minimal, “while the benefit
    of pursuing the overdose defense could have been immense.”
    Id.
    The Court of Appeals also rejected the state’s argu-
    ment that petitioner had not shown that he was prejudiced
    by counsel’s failure to further investigate and present a
    defense based on a drug overdose theory. The state had
    asserted that, because petitioner was not willing to testify,
    he was not prejudiced by counsel’s failure to pursue that
    theory, which the state viewed as dependent on petitioner’s
    testimony. The Court of Appeals rejected that argument
    for two reasons. First, the court noted, the record did not
    establish that petitioner was unwilling to testify under any
    circumstances, but only that he was not willing to testify
    if the venue defense was presented. Id. at 241. Second, the
    Court of Appeals concluded, if necessary, counsel could have
    presented the factual basis for the overdose theory without
    petitioner’s testimony. Id.
    The Court of Appeals did not view the drug over-
    dose theory as a complete defense of the sort that could have
    resulted in petitioner’s outright acquittal. Rather, the Court
    of Appeals stated:
    “We emphasize that petitioner was prejudiced by his
    attorneys’ lack of due diligence even though evidence that
    the victim died of a morphine overdose might simply mean
    that petitioner caused the victim’s death in a different way.
    Testimony from a toxicologist that the victim died from a
    morphine overdose would have allowed petitioner’s defense
    counsel to argue that petitioner was guilty of a different
    offense—such as manslaughter, ORS 163.118(1)(a); crim-
    inally negligent homicide, ORS 163.145(1); or felony mur-
    der not committed intentionally, ORS 163.115(1)(b)—that,
    unlike aggravated murder, does not implicate the death
    Cite as 
    361 Or 688
     (2017)	699
    penalty. Alternatively, the evidence could have allowed the
    jury, even if it convicted petitioner of aggravated murder,
    to find that petitioner did not ‘deliberately’ cause the vic-
    tim’s death, a finding that would result in a sentence of life
    imprisonment without the possibility of parole but not in a
    sentence of death.”
    
    Id. at 240-41
     (footnote and citation omitted). Accordingly,
    the Court of Appeals upheld the judgment granting peti-
    tioner post-conviction relief.
    On review before this court, the state contends that
    the post-conviction court and the Court of Appeals erred
    in concluding that counsel provided inadequate assistance.
    The state posits that, as a matter of law, when a qualified
    defense expert who has been informed of the relevant facts
    opines that the evidence does not support a possible defense
    theory, counsel is not constitutionally inadequate for fail-
    ing to seek additional expert opinions to contradict such an
    opinion.10
    II. ANALYSIS
    To be entitled to post-conviction relief based on
    inadequate assistance of counsel, a petitioner must show
    that counsel failed to exercise reasonable professional skill
    and judgment, and that the petitioner suffered prejudice as
    a result of counsel’s inadequacy. Trujillo v. Mass, 
    312 Or 431
    ,
    435, 822 P2d 703 (1991). To demonstrate prejudice, a peti-
    tioner must show that counsel’s failure had “a tendency to
    affect the result of his trial.” Lichau, 
    333 Or at 359
    . Although
    this court interprets and applies Article I, section 11, inde-
    pendently of Sixth Amendment jurisprudence concerning
    the effectiveness of counsel, we have “recognized that the
    standards for determining the adequacy of legal counsel
    under the state constitution are functionally equivalent to
    those for determining the effectiveness of counsel under the
    federal constitution.” Montez v. Czerniak, 
    355 Or 1
    , 6-7, 322
    P3d 487, adh’d to as modified on recons, 
    355 Or 598
    , 330 P3d
    595 (2014) (citing cases). As the Court stated in Strickland
    v. Washington, 
    466 US 668
    , 688, 
    104 S Ct 2052
    , 
    80 L Ed 2d 10
    The state has not entirely abandoned its arguments concerning prejudice,
    but it has not separately briefed that issue before this court, instead relying on
    its arguments before the Court of Appeals with respect to that issue.
    700	                                        Johnson v. Premo
    674 (1984), to demonstrate ineffective assistance of counsel,
    a petitioner must show that trial counsel’s performance “fell
    below an objective standard of reasonableness.” And, if a
    petitioner proves that counsel was ineffective, he or she also
    must show that there was a “reasonable probability that,
    but for counsel’s unprofessional errors, the result of the pro-
    ceeding would have been different.” Id. at 694.
    In evaluating counsel’s performance, we view the
    conduct in question “without the distorting effect of hind-
    sight.” Lichau, 330 Or at 360. That, however, can be eas-
    ier said than done. In every post-conviction case, a court
    is called on to evaluate counsel’s actions and omissions in
    circumstances that resulted in the petitioner’s conviction.
    Thus, in hindsight, a court may tend to scrutinize counsel’s
    decisions in an overly critical light, given the known out-
    come, and be more inclined to conclude that the petitioner
    received inadequate assistance of counsel. That type of hind-
    sight reflects “outcome” bias. See generally Stephanos Bibas,
    The Psychology of Hindsight and After-the-Fact Review of
    Ineffective Assistance of Counsel, 2004 Utah L Rev 1 (2004)
    (discussing this type of bias). In contrast, given the known
    outcome of conviction, there may be a tendency to evaluate
    the second prong of the inquiry—whether counsel’s ineffec-
    tive assistance had a tendency to affect the outcome—with
    a confirmation bias. That is, in hindsight, there may be a
    tendency to view counsel’s errors as having had no effect on
    what may seem to have been an inevitable or “foreordained
    outcome.” Id., 2004 Utah L Rev at 3. In sum, in the absence
    of disciplined scrutiny, the distorting lens of hindsight could
    make a court more likely to view counsel’s decisions as inad-
    equate, but make it less likely to view counsel’s errors as
    having had a tendency to affect the outcome.
    In the present case, as explained below, the ques-
    tion whether counsel provided inadequate assistance is a
    close one. But, unlike in many cases, this is not the type
    of case in which it would one would readily conclude that
    there was no prejudice. That is, unlike cases in which a ret-
    rospective view might suggest a foreordained outcome, in
    this situation, there is a significant dispute concerning one
    of the most crucial facts in any death penalty case: How did
    Cite as 
    361 Or 688
     (2017)	701
    the victim die? And even where, as in this case, there is
    no serious dispute that petitioner caused the victim’s death,
    a jury’s determination of how the death occurred not only
    could affect the degree of the petitioner’s culpability, but
    also obviously could affect the jury’s determination whether
    petitioner should receive the death penalty. Accordingly, our
    focus—like the state’s focus in its arguments on review—is
    primarily on the question whether counsel provided inade-
    quate assistance.
    A.  Ineffective Assistance of Counsel under Article I, section
    11
    As noted, to establish inadequate assistance of
    counsel, a petitioner must demonstrate by a preponderance
    of the evidence that counsel “failed to exercise reasonable
    professional skill and judgment.” Montez, 355 Or at 7. As we
    have long recognized, “any statement of the standard of per-
    formance constitutionally required of counsel must neces-
    sarily be general.” Krummacher v. Gierloff, 
    290 Or 867
    , 873,
    627 P2d 458 (1981). That is, what constitutes adequacy in
    formulating and executing a defense depends on the “nature
    and complexity of the case.” 
    Id. at 875
    .
    As for the “nature” of the underlying criminal case
    here, petitioner was charged with aggravated murder, and
    the state sought the death penalty. Simply put, there is no
    greater crime, or more severe penalty, under state law, and
    no type of criminal case requires more care in preparation.
    In addition, the factual complexity of petitioner’s crimi-
    nal case was manifest. It is true that part of the evidence
    was straightforward: The state had strong evidence that
    petitioner, who had a history of drugging and raping teen-
    aged girls, drugged and raped HF and then killed her. In
    addition, counsel knew that petitioner had acknowledged
    that he provided the drugs to the victim, that he had sex
    with her, and that he threw her off a bridge. However—
    and taking care not to view the issue in hindsight—the
    forensic evidence known to the defense team was far from
    conclusive. The information provided by the state’s medical
    examiner and the defense pathologist was extensive, com-
    plex, and in conflict as to the cause of the victim’s death.
    Both experts recognized, in developing their opinions, that
    702	                                          Johnson v. Premo
    there was much data to be considered: There were physi-
    cal injuries to the victim’s body; water, silt and aspirated
    vomit in her lungs; semen in her vagina; and drugs in her
    bloodstream.
    In sum, there was overwhelming evidence that
    numerous crimes had been committed against the 15-year-
    old victim. That evidence, however, provided more questions
    than answers as to precisely how she had died. This was a
    complex case in terms of the forensic evidence. And, it was
    a death penalty case. Those circumstances counseled care
    in the development of a trial strategy that, in the best of
    circumstances, would be difficult.
    Of course, the test for adequacy of assistance of
    counsel “allows for tactical choices that backfire, because, by
    their nature, trials often involve risk.” Krummacher, 
    290 Or at 876
    . “[I]f counsel exercises reasonable professional skill
    and judgment, a reviewing court will not second-guess the
    lawyer in the name of the constitution, but neither will the
    court ignore decisions made in the conduct of the defense
    which reflect an absence or suspension of professional skill
    and judgment.” 
    Id. at 875-76
    . Before assessing whether a
    tactical choice is reasonable, though, there is a preliminary
    factual question as to whether a choice was made at all.
    See Pereida-Alba v. Coursey, 
    356 Or 654
    , 670-73, 342 P3d
    70 (2015) (remanding for post-conviction court to make fac-
    tual determination, given conflicting evidence in record as
    to whether counsel made conscious choice about whether to
    forego requesting jury instruction); Green v. Franke, 
    357 Or 301
    , 320-21, 350 P3d 188 (2015) (remanding for determina-
    tion whether counsel made tactical choice not to request lim-
    iting instruction). As this court noted in Pereida-Alba,
    “whether the failure to consider an issue constitutes inade-
    quate assistance will turn on, among other things, whether
    the strategy that defense counsel did employ was rea-
    sonable, the relationship between the evidence or theory
    that defense counsel failed to consider and the strategy
    that counsel did pursue, and the extent to which counsel
    should have been aware of the strategy that petitioner now
    identifies.”
    Pereida-Alba, 356 Or at 674 (citing Montez, 355 Or at 24).
    Cite as 
    361 Or 688
     (2017)	703
    In this case, the post-conviction court determined
    that “trial counsel limited the universe of options from
    which to make an informed decision by choosing not to con-
    sider hiring a toxicologist. Thus, trial counsel made a choice
    of defense without due diligence toward being informed.” In
    light of the broader context of the court’s decision, we under-
    stand it to have meant that trial counsel did not make a
    reasonable tactical decision not to pursue a drug overdose
    theory: There was uncontradicted evidence that Walker
    considered the theory and rejected it in light of Ferris’s cer-
    tainty that HF had drowned and the potential problems
    with having petitioner testify. Thus, we understand the
    post-conviction court to have determined that counsel made
    a tactical decision to forego a morphine-overdose defense in
    favor of a venue defense, but that that decision was unrea-
    sonable because counsel had not undertaken an adequate
    investigation of the relevant facts that, in turn, would have
    required hiring a toxicologist to review the forensic evidence.
    As this court has observed on numerous occasions,
    “tactical decisions must be grounded on a reasonable inves-
    tigation.” Gorham v. Thompson, 
    332 Or 560
    , 567, 34 P3d 161
    (2001) (citing Krummacher 
    290 Or at 875
    ; Stevens v. State,
    
    322 Or 101
    , 108, 902 P2d 1137 (1995)). In Lichau, this court
    considered whether the petitioner’s trial counsel had made
    a “reasonable investigation” in the context of his decision
    to withdraw from the jury’s consideration the petitioner’s
    alibi defense. We discuss that decision, and Stevens, in some
    detail, because those decisions provide helpful guidance in
    determining what constitutes a reasonable investigation of
    a factual theory of defense.
    In Lichau, the petitioner had been charged with
    numerous sexual offenses against his 11-year-old niece. 
    333 Or at 352
    . At the time of the alleged offenses, the petitioner
    had been stationed at a military base on the East Coast.
    Defense counsel prepared an alibi defense, based on mili-
    tary records, that the petitioner was not in Oregon when
    the offenses were committed. On the morning of trial, how-
    ever, the prosecutor threatened to present evidence that did
    not appear on official military leave records that the peti-
    tioner had been on military leave in Oregon at the time of
    704	                                          Johnson v. Premo
    the crimes. 
    Id. at 353
    . Counsel withdrew the alibi defense in
    anticipation of reviewing the prosecutor’s evidence, but the
    prosecutor never provided the evidence. 
    Id.
    In the ensuing post-conviction action, the petitioner
    argued that adequate counsel would have determined, after
    a sufficient investigation, that the petitioner had not, in
    fact, been on leave in Oregon at the time of the offenses or,
    alternatively, would have reinstated the alibi defense when
    the prosecutor failed to provide the touted evidence about
    petitioner’s military leave. 
    Id. at 354
    . Evidence at the post-
    conviction hearing established that defense counsel had
    relied entirely on military records provided by the prosecu-
    tion, and had not attempted to subpoena any military records
    before trial. 
    Id.
     Evidence at the post-conviction hearing also
    showed that the petitioner had not been on leave at the time
    of the alleged offenses, and that proof of that fact could have
    been obtained if counsel had subpoenaed the petitioner’s
    military records, interviewed witnesses, and obtained other
    documents such as the petitioner’s bank statements and cor-
    respondence. 
    Id. at 356-57
    .
    Ultimately, this court agreed with the post-
    conviction court that defense counsel had failed to conduct an
    adequate investigation, noting that counsel had limited his
    preparation of the alibi defense to reviewing materials pro-
    vided by the state, seeking information from the petitioner’s
    prior lawyer (who provided no relevant information), and
    contacting the petitioner’s parents. 
    Id. at 360-61
    . This court
    acknowledged that the petitioner had told defense counsel
    that he was uncertain of his whereabouts at the time of the
    alleged crime, but, in this court’s view, that fact was not dis-
    positive: counsel knew that the petitioner had been stationed
    at a military base thousands of miles away, and the peti-
    tioner had told counsel “that military records demonstrating
    that he had no taken leave in June 1989 were available and
    that supervisors might be able to confirm” that he was at the
    base at the pertinent time. 
    Id. at 361
    . This court therefore
    concluded that counsel’s decision to limit his investigation of
    the alibi defense was not “based on a reasonable evaluation
    of the likely costs and potential benefits” to the petitioner. 
    Id.
    (quoting Stevens, 
    322 Or at 109
    ).
    Cite as 
    361 Or 688
     (2017)	705
    Stevens likewise involved a failure to adequately
    investigate a possible factual theory of defense. In that case,
    the petitioner was charged with the rape of a child that was
    alleged to have occurred as he drove her to school. The child
    testified to the details of the alleged offense, and further
    testified that upon arrival at school, she had told one of her
    teachers what had occurred. No physical evidence corrobo-
    rated the crime. Id. at 103-04. Although the petitioner told
    defense counsel that he was not physically capable of having
    committed the crime due to impotence, counsel did not seek
    information about the petitioner’s physical condition from
    his urologist. Id. at 104, 106. In addition, counsel did not
    interview the child’s teachers or peers at her school. Id. at
    105. Had counsel done so, he would have discovered that the
    child had not, in fact, reported a rape to her teacher, that
    she had told various classmates different stories about what
    had occurred, and that she had revealed to classmates that
    her mother intended to sue the petitioner for “money.” Id. at
    105-06. This court stated:
    “In investigating a case, a lawyer inevitably is faced
    with choices as to what avenues of investigation to pursue.
    A ‘tactical decision’ in the course of an investigation is a
    conscious choice by a lawyer either to take or to omit some
    action on the basis of an evaluation of the nature and com-
    plexity of the case, the likely costs and potential benefits of
    the contemplated action, and other factors. But the fact that
    a lawyer has made a ‘tactical decision’ does not mean that
    the lawyer’s choice meets the constitutional standard for
    adequate assistance of counsel. Indeed, this case illustrates
    the point. Considering the nature and complexity of this
    case, trial counsel’s choice not to interview the complaining
    witness’s teachers and classmates was a ‘tactical decision,’
    but it did not result in adequate representation of peti-
    tioner. The complaining witness’s statements to classmates
    suggested a possible motive to fabricate (i.e., obtain money
    through litigation). The teachers’ testimony would have
    impeached the testimony of the parents of the complaining
    witness. The conflicting accounts to classmates regarding
    the location of the alleged rape would have impeached the
    complaining witness’s account at trial. Medical evidence of
    impotence would have contradicted part of the complaining
    witness’s testimony.
    706	                                          Johnson v. Premo
    “Trial counsel’s decision not to interview potential wit-
    nesses at the complaining witness’s school was not a choice
    that was based on a reasonable evaluation of the likely
    costs and potential benefits of pursuing the investigation.”
    Id. at 109.
    In some ways, the present case was more compli-
    cated factually than either Lichau or Stevens. Here, there
    was no evidence that counsel knew of some specific witness
    or evidence that might assist in developing a drug overdose
    theory, yet failed to follow through with contacting that per-
    son or seeking that evidence. Still, counsel had a wealth of
    relevant information to consider. They knew that their cli-
    ent believed that the victim had died in his bed after he
    had given her drugs and had sex with her, and they at least
    implicitly understood that petitioner believed that the vic-
    tim had died of a drug overdose. They knew, in contrast,
    that the medical examiner who examined the victim’s body
    believed that she had been strangled.
    Given the discrepancy between what petitioner said
    had occurred and the medical examiner’s conclusion, coun-
    sel needed to—and did—obtain more information about the
    cause of the victim’s death. In particular, counsel obtained
    the opinion of an experienced forensic pathologist who had
    performed thousands of autopsies. In the normal course,
    counsel might reasonably expect such an expert either to
    confirm the client’s version of what had occurred or confirm
    the state’s version of events. This case, however, did not fol-
    low that course. Instead, the expert added a third possible
    theory of how the victim’s death had occurred: by drowning.
    Contrary to petitioner’s suggestions, it is unlikely
    that any of the three possible theories of death would have
    produced a strong defense in his criminal case. Bluntly, if
    the theory was death by strangulation, there was ample
    evidence that petitioner strangled the victim; if the theory
    was death by drowning, there was ample evidence that peti-
    tioner drowned the victim, albeit not in the county in which
    the prosecution was commenced; and, if the theory was
    death by drug overdose, there was ample evidence that peti-
    tioner gave the victim the drugs that caused the overdose.
    Moreover, although the state pursued the strangulation
    Cite as 
    361 Or 688
     (2017)	707
    theory, none of the three theories of death necessarily was
    incompatible with a charge of aggravated murder committed
    in the course of, or to conceal, sex crimes committed against
    the victim.
    Although petitioner suggests that pursuing the
    overdose theory could have led to an outright acquittal on
    the charges, that seems at least as improbable as the pros-
    pects for the venue defense that was presented. Petitioner’s
    position appears to be that a factual defense could have been
    presented that HF had voluntarily ingested the drugs, vol-
    untarily had sex with petitioner, and then accidentally died
    from an overdose. But, such a theory would have required
    counsel to argue that HF was neither physically nor men-
    tally incapacitated due to the allegedly lethal dose of mor-
    phine when petitioner had sex with her, and that the sexual
    contact was not forcible. As noted, the state presented evi-
    dence to the contrary,11 and convincing a jury that the victim
    was not incapacitated by an amount of morphine that ulti-
    mately killed her could have proven extremely difficult, even
    if petitioner had testified to that effect in his own defense.
    Nonetheless, pursuing such a defense had one
    major advantage—unlike the competing cause of death the-
    ories, neither of which could easily be characterized as unin-
    tentional, with a drug overdose theory, counsel could have
    argued that the homicide did not constitute aggravated mur-
    der because it was not committed intentionally.12 Although
    such an approach would have left petitioner vulnerable to
    conviction for a variety of lesser offenses, it had the potential
    to remove the death penalty from the equation. Simply put,
    it is impossible to overstate the importance of that consider-
    ation in a capital murder case.
    In addition, even if an overdose theory had not
    succeeded in the guilt phase and the jury had convicted
    of aggravated murder, that theory would have laid better
    11
    As this court observed in the opinion on direct review, the state presented
    evidence that HF was a lesbian in support of its theory that she would not have
    willingly had sexual contact with petitioner. Johnson, 
    340 Or at 342
    .
    12
    Every charge of aggravated murder that the state alleged in the underly-
    ing criminal proceeding was based on allegations that the crime was committed
    intentionally.
    708	                                        Johnson v. Premo
    groundwork for arguing in the penalty phase that the jury
    should not impose a sentence of death. In the penalty phase,
    the jury was required to answer four questions, including
    a specific question about whether the offense was commit-
    ted “deliberately,” and a more open-ended question about
    whether “the defendant should receive a death sentence.”
    ORS 163.150(1)(b)(A), (D). It is reasonably possible that
    a jury, in considering those questions, could view a death
    caused by drug overdose as less heinous than one caused by
    strangulation or intentional drowning, and therefore be less
    inclined to impose the death penalty.
    The state counters that petitioner’s “refusal to coop-
    erate [with defense counsel] left them with little confidence
    in any approach based on a theory of accidental death.”
    (Emphasis added.) That, however, is an overstatement. It
    is true that the record shows that petitioner had no interest
    in pursuing a strategy that would have involved acknowl-
    edging that he had strangled the victim. It is also true that
    petitioner was not forthcoming with his defense team and
    was unhelpful in numerous respects. Those facts, however,
    do not foreclose the possibility that petitioner would have
    been more cooperative if counsel had pursued a strategy
    based on facts that matched, at least in a general sense, the
    account that petitioner gave his defense team about the cir-
    cumstances of the victim’s death.
    The state remonstrates that the field of forensic
    pathology includes interpretation of toxicological tests, and
    that both of the criminal trial expert’s reports included such
    interpretations. Thus, the state suggests, adequate defense
    counsel should not have been expected to seek additional
    information from a toxicologist because they already had
    expert opinions that encompassed the subject of toxicology.
    To be sure, the state’s position has some force. We do not
    suggest that, whenever a homicide involves the use of drugs,
    the opinions of forensic pathologists about the cause of the
    victim’s death must be supplemented by information from a
    toxicologist. Here, however, the information that the defense
    team had at hand should have prompted adequate counsel
    to seek additional information about the effects of the drugs
    found in the victim’s body. First, as noted, petitioner told
    counsel that he and the victim had taken not only morphine,
    Cite as 
    361 Or 688
     (2017)	709
    but numerous other drugs, and also had consumed alcohol.
    He also told the defense team that the victim had vomited
    after taking morphine. Second, although the medical exam-
    iner ruled out morphine overdose as a cause of death, his
    report indicated that her morphine level was significant
    enough that HF would have had difficulty resisting an
    assault. He also indicated that there was evidence that HF
    had aspirated vomit at some point before her death and that
    a drug screen had revealed marijuana metabolites in HF’s
    urine. Third, although Ferris, like the medical examiner,
    ruled out morphine overdose as a cause of death, his report
    suggested that the victim likely had aspirated vomit while
    unconscious due to morphine, and he also opined that mor-
    phine levels are very difficult to interpret.
    Notably, the forensic data available to defense coun-
    sel tended to confirm important aspects of petitioner’s ver-
    sion of what had occurred—that HF may have had multi-
    ple intoxicating substances in her system at the time of her
    death, and that she had vomited due to morphine ingestion
    at some time before her death. In sum, all the evidence indi-
    cated that drugs had played a significant role in the events
    that surrounded HF’s death. As the state points out, when
    counsel has “reason to believe that pursuing certain inves-
    tigations would be fruitless or even harmful, counsel’s fail-
    ure to pursue those investigations may not later be chal-
    lenged as unreasonable.” Strickland, 
    466 US at 691
    . Here,
    however, the conflicting information from the experts, not
    only about the cause of HF’s death but also about the role
    that morphine and other intoxicants may have played in
    the circumstances surrounding her death, was sufficient to
    give adequate counsel reason to believe that further inquiry
    about toxicology would not necessarily be “fruitless.” As for
    the extent to which it could have been “harmful,” counsel
    was well aware before trial commenced that the state would
    present evidence of petitioner’s history of drugging teen-
    aged girls with morphine in order to have sexual contact
    with them. In other words, counsel knew that “harmful”
    evidence would be presented about the victim having poten-
    tially incapacitating levels of morphine in her body, as well
    about petitioner having likely given her that morphine. In
    those circumstances, seeking additional information about
    710	                                        Johnson v. Premo
    the significance of the morphine and other drugs in HF’s
    system should not have been foregone on the premise that
    such a quest was likely to be “harmful” to the defense.
    What constitutes “reasonable professional skill
    and judgment” in defending criminal charges is a highly
    fact-specific inquiry. Here, the information that defense
    counsel had—both from their own client and from discov-
    ery and independent investigation—suggested no defense
    that had great merit. As a matter of common sense, though,
    counsel not only should have realized—but did realize—that
    a venue defense provided no reasonable prospect for acquit-
    tal. Moreover, that defense had the significant drawback of
    essentially acknowledging that petitioner had committed
    aggravated murder, and had done so in a particularly cal-
    lous manner by throwing a youth whom he had sexually
    assaulted off a bridge.
    In contrast to that very weak strategy, petitioner
    adduced expert testimony in the post-conviction trial that,
    in a death penalty case, adequate counsel should attempt,
    whenever possible, to develop a unified defense theory for
    both the guilt and penalty phases of the trial, with an eye
    toward minimizing the risk that a jury that convicts will
    impose the death penalty. The defense advanced in this
    case, at best marginally viable in the guilt phase, lacked
    any tactical value in the penalty phase. In that admittedly
    very difficult circumstance, and in light of all the informa-
    tion known to defense counsel as described above, we con-
    clude that adequate trial counsel should have sought out
    additional information concerning the drugs in the victim’s
    system at the time of her death, in order to try to develop a
    guilt-phase theory that petitioner’s killing of the victim was
    unintentional, or alternatively, a penalty-phase theory that,
    even if the killing was intentional, it was not the type of
    crime for which the death penalty should be imposed.
    B. Prejudice
    As noted, to obtain post-conviction relief, a peti-
    tioner must show that counsel’s inadequacy had “a tendency
    to affect the result of his trial.” Lichau, 
    333 Or at 359
    . And,
    as noted, the state makes no specific argument on review
    concerning prejudice. As our analysis indicates, the theory
    Cite as 
    361 Or 688
     (2017)	711
    of defense advanced by counsel in this case had little chance
    of success at the guilt phase of the trial, and it left even less
    room in the penalty phase for counsel to argue that the cir-
    cumstances of the victim’s death did not justify imposition
    of the death penalty. On the other hand—although unlikely
    to produce an acquittal—pursuing a drug-overdose defense
    held better promise, especially in the penalty phase of this
    aggravated murder case. We therefore conclude that peti-
    tioner has demonstrated that counsel’s failure to adequately
    investigate that defense had a tendency to affect the result
    of his trial.
    The decision of the Court of Appeals and the judg-
    ment of the circuit court are affirmed.