State of Maine v. Keith Coleman , 181 A.3d 689 ( 2018 )


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  •  MAINE SUPREME JUDICIAL COURT                                          Reporter of Decisions
    Decision: 
    2018 ME 41
    Docket:   Pen-17-35
    Argued: November 15, 2017
    Decided: March 22, 2018
    Revised: January 8, 2019
    Panel:     SAUFLEY, C.J.,   and   ALEXANDER,    MEAD,   GORMAN,    JABAR,   HJELM,   and
    HUMPHREY, JJ.
    STATE OF MAINE
    v.
    KEITH COLEMAN
    MEAD, J.
    [¶1] Keith Coleman appeals from a judgment of conviction for three
    counts of murder, 17-A M.R.S. § 201(1)(A) (2017), and one of gross sexual
    assault (Class A), 17-A M.R.S. § 253(1)(C) (2017), entered by the trial court
    (Penobscot County, A. Murray, J.) following a jury trial; he also appeals his
    sentences of life imprisonment on each of the murder counts. See 15 M.R.S.
    §§ 2151, 2152 (2017); M.R. App. P. 20 (Tower 2016).1 Coleman argues that
    the court (1) abused its discretion by limiting his cross-examination of the
    State’s Chief Medical Examiner, (2) clearly erred by finding that the State had
    1 This appeal was filed before September 1, 2017; therefore, the restyled Maine Rules of
    Appellate Procedure do not apply. See M.R. App. P. 1.
    2
    sufficiently established the chain of custody of the sexual assault kit used
    during the autopsy of one of the victims, and (3) applied an incorrect
    standard of proof and abused its discretion in determining the facts
    considered at sentencing. Coleman also asserts that there was insufficient
    evidence to support the jury’s guilty verdict on the gross sexual assault
    charge and that the State committed prosecutorial misconduct in its opening
    statement. Although we conclude that the court abused its discretion by
    foreclosing Coleman’s cross-examination of the Chief Medical Examiner
    concerning his termination from his position as Chief Medical Examiner in
    Massachusetts, the error was harmless in the face of the overwhelming
    evidence of Coleman’s guilt. We are unpersuaded by the remainder of his
    arguments and affirm the judgment and sentences.
    I. FACTS
    [¶2] “When viewed in the light most favorable to the jury's verdict,
    the record supports the following facts.” State v. Diana, 
    2014 ME 45
    , ¶ 2,
    
    89 A.3d 132
     (alteration omitted) (quotation marks omitted). The bodies of
    an eight-year-old girl, her ten-year-old brother, and the children’s mother
    were found in their home in Garland on the evening of December 20, 2014.
    Keith Coleman, the mother’s on-and-off boyfriend of a few years, had been
    3
    living with the victims in their home for about a year prior to their deaths
    but was absent from the home when their bodies were discovered.
    [¶3] By all reports, Coleman’s and the mother’s relationship was a
    tumultuous one, plagued by incidents of Coleman’s physical abuse of the
    mother.   Shortly before the deaths, the mother told Coleman that he
    needed to deal with his drinking or move out; she was also considering
    reconciling with her daughter’s father. Coleman was very upset by this
    situation and told a coworker, on three different occasions, that he
    “wouldn’t have a problem with killing them all.”
    [¶4] The children were last seen on December 19, 2014, as they left
    school on the final day of classes before Christmas vacation. On the same
    day, the mother made her last known communication in a text message to
    her aunt concerning a fight she and Coleman had that day. On the morning
    of December 20, shortly after 7:00 a.m., Coleman drove away from the
    home, then returned about five to ten minutes later, and left by 10:00 or
    11:00 a.m. in the family’s tan minivan. Coleman stopped at a local store for
    beer and cigarette rolling papers before driving to Bangor to return a
    remote-control car at a store, a gift he had intended to give to the son.
    Coleman later arranged, via direct messaging from one of his Facebook
    4
    accounts, to meet up with friends in Bucksport. While messaging with his
    friends in Bucksport, he sent another set of Facebook messages, telling
    another friend that he was “[o]n the run for capital murder” and asking
    “[c]ould you send me anything to get me to the hood.”
    [¶5]   During the afternoon of December 20, after repeated failed
    attempts to reach the mother, the aunt whom the mother had texted the
    previous day asked another niece to go to the home and check on the
    mother and the children. At around 9:00 p.m., the niece and a number of
    other family members arrived at the home, broke through the locked front
    door, and discovered the mother’s body in one bedroom and the daughter’s
    body in another; the daughter was found gagged and on her back, each leg
    dangling off the end of the bed on either side of one of its corners. The
    family members called 9-1-1 and awaited the first responders’ arrival
    outside of the home. The first to arrive was a deputy from the Penobscot
    County Sheriff’s Office who located the son’s body in the third bedroom,
    underneath a pile of bedding.
    [¶6]   The next morning in Bucksport, law enforcement officers
    responded to an apartment where Coleman reportedly had spent the
    previous night and took Coleman, who was cooperative, into custody. At the
    5
    time of his arrest, Coleman was in possession of the family’s tan minivan, the
    mother’s EBT card, and her purse. Coleman was interrogated that evening
    for five hours by two detectives; slightly over four hours into questioning, he
    admitted to “killing [the mother] and the kids.”
    [¶7] On December 21 and 22, 2014, the Medical Examiner’s Office
    performed the victims’ autopsies and concluded that the cause of death for
    all three was asphyxiation by ligature strangulation. During the daughter’s
    autopsy, the Chief Medical Examiner, Doctor Mark Flomenbaum, detected no
    trauma to her genitals and found that her hymen was intact, but he observed
    blunt force trauma to her face; two superficial abrasions on her buttocks,
    each slightly less than an inch long; and what he suspected was dried blood
    in her vaginal area and on the crotch of the pink shorts she was wearing.
    The daughter also had a plastic shopping bag stuffed tightly into her mouth
    and throat, which, Dr. Flomenbaum opined, occluded the passage of all air
    and sound. These observations prompted either Dr. Flomenbaum or the
    assisting nurse, acting under his supervision, to collect four swabs from the
    daughter’s vaginal area using a sexual assault kit. During the afternoon of
    December 22, the four swabs were dried and placed together in an envelope
    inside the kit, which was sealed and left in the Medical Examiner’s Office.
    6
    The sealed kit remained there until December 24 at 10:00 a.m., when the
    same state police detective who had been present at the autopsy retrieved
    the kit and brought it to a temporary evidence locker and, later, to the Maine
    State Police Crime Laboratory for testing.
    [¶8] On December 31, 2014, a crime laboratory technician confirmed
    that the items of evidence delivered by the state police detective from the
    autopsy were contained in sealed bags, with the seals unbroken, and
    processed the individual items. Two of the four swabs in the envelope
    labeled “vaginal swabs” as well as the stained cutting from the shorts tested
    positive for, and were verified as containing, blood and semen. Samples of
    the vaginal swab with the highest concentration of forensic material and of
    the stained shorts were sent for DNA analysis.
    [¶9] Mixtures of DNA were found on the ligatures associated with the
    victims. The mixture on the ligature found on the mother was consistent
    with the DNA profiles of Coleman, the mother, and at least one unknown
    donor; a ligature found on the daughter revealed DNA consistent with
    Coleman, the daughter, and at least one other unknown donor; on another
    ligature found on the daughter, there was DNA matching her and at least one
    unknown donor; a ligature found on the son contained DNA that was
    7
    consistent with the son, the daughter, and at least one unknown donor. A
    forensic DNA analyst found that a sample from the daughter’s stained shorts
    had too little material for DNA analysis of the sperm or blood. The vaginal
    swabs contained two DNA profiles—one obtained from skin cells, which was
    consistent with the daughter, and the other from sperm cells, which was
    consistent with Coleman. The DNA analyst calculated that there was a
    statistical possibility of less than 1 in 300 billion that the sperm fraction
    profile came from someone other than Coleman.
    II. PROCEDURAL HISTORY
    [¶10] Coleman was initially charged by complaint with three counts of
    murder and later with one count of gross sexual assault and was
    subsequently indicted by the Penobscot County Grand Jury for those
    charges. 17-A M.R.S. §§ 201(1)(A); 253(1)(c). At his arraignment, Coleman
    entered pleas of not guilty.
    [¶11] On September 13, 2015, the State moved in limine to bar
    Coleman    from    cross-examining    the   medical    examiner,   Dr.    Mark
    Flomenbaum,       concerning   a     Connecticut      judge’s   finding   that
    Dr. Flomenbaum’s testimony as an expert witness for a defendant in a child
    death case was not credible; and, Dr. Flomenbaum’s removal from his
    8
    previous position as the Massachusetts Chief Medical Examiner. The court
    reserved ruling on the motion until hearing Dr. Flomenbaum’s testimony
    and later granted the State’s motion over Coleman’s repeated objection.2
    The court found that the Connecticut court’s credibility determination was
    not a specific instance of conduct probative of a character for truthfulness.
    See M.R. Evid. 608(b). The court additionally found that Dr. Flomenbaum’s
    removal from an administrative position in Massachusetts was not only
    irrelevant to his medical findings in an individual autopsy but also was likely
    to confuse, and needlessly add to, the issues more properly before the jury;
    the court therefore foreclosed any cross-examination on this issue pursuant
    to M.R. Evid. 403.
    [¶12] On November 10, 2016, after an eleven-day trial, the jury found
    Coleman guilty on all charges and the court continued the matter for
    sentencing. On January 19, 2017, the court imposed concurrent sentences of
    life imprisonment on each of the murder counts and a concurrent
    twenty-year term of imprisonment for the gross sexual assault. Coleman
    2The court referenced with approval two trial court decisions in unrelated cases that had
    similarly limited impeachment of Dr. Flomenbaum. State v. Davis, No. AROCD-CR-2013-137
    Unified Criminal Docket (Aroostook Cty., August 29, 2016) (order granting motion in limine);
    State v. Haji-Hassan, CUMCD-CR-2014-7716 Unified Criminal Docket (Cumberland Cty.,
    August 10, 2016) (order on motion for in camera review), appeal docketed, No. Cum-17-149
    (Apr. 7, 2017).
    9
    appealed directly from his conviction, pursuant to M.R. App. P. 20 and
    15 M.R.S. § 2151. Upon his application, the Sentence Review Panel granted
    him leave to appeal from his sentence. State v. Coleman, No. SRP-17-60
    (Mar. 13, 2017). We consolidated our review of his sentence with his direct
    appeal. M.R. App. P. 20(h).
    III. DISCUSSION
    A.    Limitation on Coleman’s Impeachment of Dr. Flomenbaum
    [¶13] Prior to trial and again at trial, Coleman sought, pursuant to
    M.R. Evid. 608(b), to impeach Dr. Flomenbaum’s character for truthfulness
    by inquiring on cross-examination into (1) his expert testimony in a
    May 2016 child death case that a Connecticut judge found was not credible
    and (2) his termination as Massachusetts’s Chief Medical Examiner due to
    his administrative shortcomings and lack of candor with his superiors.
    Coleman made an offer of proof consisting of a letter from a Connecticut
    State’s Attorney regarding a judge’s finding that Dr. Flomenbaum’s
    testimony was not credible; the transcript of that testimony; a newspaper
    story about Dr. Flomenbaum’s termination in Massachusetts; and the
    Massachusetts Supreme Judicial Court’s opinion affirming Dr. Flomenbaum’s
    for-cause termination. See Flomenbaum v. Commonwealth, 
    889 N.E.2d 423
    10
    (Mass. 2008).    On appeal, Coleman asserts that the court committed an
    abuse of discretion and violated his constitutional right to effectively
    cross-examine a witness when it denied him the opportunity to further
    impeach Dr. Flomenbaum with evidence of these circumstances.                See
    U.S. Const. amends. VI, XIV; Me. Const. art. I, § 6; M.R. Evid. 608(b).
    [¶14] We afford a trial court wide discretion in its evidentiary rulings
    pursuant to M.R. Evid. 403 and 608(b) and review such rulings for an abuse
    of discretion. State v. Maderios, 
    2016 ME 155
    , ¶¶ 10-11, 
    149 A.3d 1145
    ;
    State v. Williams, 
    2012 ME 63
    , ¶ 42, 
    52 A.3d 911
    . Rule 608(b) prohibits use
    of extrinsic evidence of specific instances of a witness’s conduct, other than a
    criminal conviction pursuant to M.R. Evid. 609, to attack or support that
    witness’s character for truthfulness but allows a court to permit “a witness’s
    credibility [to] be attacked through cross-examination on specific instances
    of the witness’s prior conduct that are probative of truthfulness or
    untruthfulness.” Williams, 
    2012 ME 63
    , ¶ 42, 
    52 A.3d 911
     (emphasis added)
    (citation omitted) (quotation marks omitted).
    [¶15]     In determining whether specific instances of a witness’s
    conduct are sufficiently probative of the witness's character for truthfulness
    or untruthfulness, a court may consider (1) “the importance of the witness
    11
    to the case”; (2) “how probative of truthfulness or untruthfulness the bad
    acts are”; and (3) “[t]he reliability of the information that the bad acts in fact
    occurred . . . .” State v. Almurshidy, 
    1999 ME 97
    , ¶ 30, 
    732 A.2d 280
    ; see Field
    & Murray, Maine Evidence § 608.2 at 299 (6th ed. 2007).                             The limited
    opportunity to inquire, on cross-examination, into specific acts by the
    witness      relating     to    the     witness's      character       for    truthfulness        or
    untruthfulness, however, does not open the door to the admission of
    extrinsic evidence relating to those acts.3 Almurshidy, 
    1999 ME 97
    , ¶ 25 n.4,
    
    732 A.2d 280
     (“[P]ursuant to Rule 608(b)(1), extrinsic evidence . . . is not
    admissible.”). Nor does the limited opportunity to inquire into specific acts
    on cross-examination override our well-established rule that opinion
    testimony on a particular witness’s credibility is inadmissible. See State v.
    Woodburn, 
    559 A.2d 343
    , 346 (Me. 1989); State v. Caulk, 
    543 A.2d 1366
    ,
    1372 (Me. 1988). We now analyze each of the proffered specific instances of
    Dr. Flomenbaum’s conduct in turn.
    1) Connecticut Testimony and Judge’s Credibility Determination
    [¶16]       We have not dealt with the admissibility pursuant to
    3 If a cross-examiner asks a question regarding a specific act, after satisfying the court that he
    has a good faith basis to ask the question, and the witness denies the act, the questioner is left
    with the answer and cannot offer extrinsic evidence to rebut the witness’s answer. See Field &
    Murray, Maine Evidence § 608.2 at 299 (6th ed. 2007).
    12
    Rule 608(b) of past judicial credibility determinations concerning an expert
    witness.     We have, however, done so in the context of expert opinions
    regarding another witness’s credibility. See Woodburn, 
    559 A.2d at 346
    (affirming the exclusion of a psychologist’s expert testimony that the child
    victim     was   unable   to   distinguish   truth   from    falsehood)   (citing
    M.R. Evid. 608(a),    (b)).      Coleman     contends       that   evidence   of
    Dr. Flomenbaum’s responses to a Connecticut prosecutor’s questions about
    his termination from Massachusetts and a Connecticut judge’s finding that
    Dr. Flomenbaum’s “testimony [was] not credible” are proper subjects for
    impeaching Dr. Flomenbaum’s credibility as a witness pursuant to
    Rule 608(b).
    [¶17]      In May 2016, Dr. Flomenbaum appeared in his personal
    capacity as a forensic expert at a trial in the Connecticut Superior Court on
    behalf of the defendant in a criminal case. Coleman asserts that if the court
    had allowed him, he would have asked Dr. Flomenbaum about this exchange
    during the State’s Attorney’s cross-examination in that case:
    [State’s Attorney]: And you were [working for Massachusetts]
    for—I can’t recall from your direct—how many years?
    [Dr. Flomenbaum]: Two years.
    ....
    13
    [State’s Attorney]: Two years before they fired you?
    [Dr. Flomenbaum]: No. Two years before I left.
    [State’s Attorney]: Well, didn’t the [S]tate of Massachusetts
    terminate you, Doctor?
    [Dr. Flomenbaum]: The governor did. Yes, he did.
    State v. Bumgarner-Ramos, No. WMM-CR13-0151026-T (Conn. Super. Ct.
    May 11, 2016).
    [¶18] Although we have said that “falsifying testimony is . . . probative
    of whether someone has a truthful or untruthful character,” the above
    exchange cannot be construed in any sense as falsification of testimony.
    See Almurshidy, 
    1999 ME 97
    , ¶ 30 n.6, 
    732 A.2d 280
    . Dr. Flomenbaum
    appears to have simply disagreed with the characterization that he was fired
    but, more importantly, he also acknowledged—in his very next answer—
    that his employment was indeed terminated.                   Bumgarner-Ramos,
    No. WMM-CR13-0151026-T.           Even    considering    Dr.    Flomenbaum’s
    importance to the State’s case, this instance of his conduct completely lacks
    any relevance or probative value regarding his character for truthfulness.
    See State v. Ericson, 
    2011 ME 28
    , ¶ 20, 
    13 A.3d 777
    ; Almurshidy, 
    1999 ME 97
    ,
    ¶ 30 n.6, 
    732 A.2d 280
    .
    14
    [¶19]    Coleman next points to the judge’s finding, in the same
    Connecticut case, that Dr. Flomenbaum’s “testimony [was] not credible and
    [that the court] rejects Dr. Flomenbaum’s conclusions [concerning the cause
    of death].” Bumgarner-Ramos, No. WMM-CR13-0151026-T (Conn. Super. Ct.
    May 17, 2016). Coleman contends that this instance of Dr. Flomenbaum’s
    conduct is admissible impeachment evidence on the authority of
    United States v. Cedeño, where the Court of Appeals for the Second Circuit
    held that the defendant should have been allowed to cross-examine a
    government witness about a judge’s finding in a prior case that the witness
    had lied while testifying under oath, but ultimately concluded that this error
    was harmless. 
    644 F.3d 79
    , 81, 82-83 (2d Cir. 2011); see Fed. R. Evid. 608(b).
    [¶20] It is not clear that the Connecticut court’s finding regarding
    Dr. Flomenbaum’s testimony would be admissible in this case according to
    Cedeño,4 which is distinguished from these facts by the judicial finding at
    issue there, i.e., a determination that the witness had lied under oath in a
    previous case. 
    644 F.3d at 81, 83
    . Furthermore, several of the cases cited in
    The Second Circuit’s approach contrasts with others that allow impeachment by inquiry into
    4
    the underlying facts of a past judicial or executive branch proceeding but disallow questions
    about the proceeding’s conclusions or consequences, which are extrinsic evidence. See
    Fed. R. Evid. 608(b), Advisory Committee’s Note to 2003 amend.; United States v. Whitmore,
    
    384 F.3d 836
    , 836-37 (D.C. Cir. 2004); United States v. Davis, 
    183 F.3d 231
    , 256, 257 n.12
    (3d Cir. 1999); Deary v. City of Gloucester, 
    9 F.3d 191
    , 196-97 (1st Cir. 1993); United States v.
    Lopez, 
    944 F.2d 33
    , 37-38 (1st Cir. 1991); Waymire v. Miami Cty. Sheriff’s Office,
    
    2017 U.S. Dist. LEXIS 160918
    , at *6-7 (S.D. Ohio Sept. 29, 2017).
    15
    Cedeño specifically differentiate between a finding that a witness had lied or
    was not credible and a court finding the “defense witnesses more credible
    than the government’s witness.” United States v. Whitmore, 
    359 F.3d 609
    ,
    620 (D.C. Cir. 2004) (quotation marks omitted); see also United States v.
    Dawson, 
    434 F.3d 956
    , 959 (7th Cir. 2006) (approving of the exclusion of
    questions about past judicial credibility findings “when the witness . . . had
    been disbelieved in only one case or where it was unclear whether and why
    the witness’s testimony had been rejected.”). We need not decide whether
    the Second Circuit’s approach should be applied in Maine in cases where the
    court is left with an inescapable conclusion that the witness has previously
    lied under oath because in Dr. Flomenbaum’s case no such conclusion is
    possible on the facts presented here. See Cedeño, 
    644 F.3d at 81-83
    . The
    obvious conclusion to be drawn from reading the transcript of the
    Connecticut trial is that the judge was presented with conflicting expert
    opinions and elected, as typically happens, to find one credible and the other
    not—a far cry from finding that a witness lied.
    [¶21]    We note also that the overarching, bright-line rule of
    M.R. Evid. 608(a) prevents the admission of personal opinions regarding a
    witness’s credibility or truthfulness. See Woodburn, 
    559 A.2d at 346
    . The
    16
    Connecticut judge’s opinion of Dr. Flomenbaum’s testimony is just the sort of
    opinion evidence prohibited by Rule 608(a). The court acted well within its
    discretion to preclude Coleman’s inquiry on cross-examination into
    Dr. Flomenbaum’s testimony and the judge's finding on the credibility issue
    in the Connecticut case. See id.; Caulk, 
    543 A.2d at 1372
    .
    2) Dr. Flomenbaum’s Prior Employment Termination
    [¶22] Coleman next argues that the reasons for Dr. Flomenbaum’s
    removal as Massachusetts Chief Medical Examiner—that according to the
    Massachusetts Supreme Judicial Court decision included his administrative
    shortcomings and lack of candor with his superiors 5 —are also specific
    instances of Dr. Flomenbaum’s conduct that are probative of his character
    for truthfulness. Coleman postulates that Dr. Flomenbaum’s termination
    from his prior employment may provide a motive or bias on
    Dr. Flomenbaum’s part to please the Attorney General’s Office and thereby
    secure his continued employment in Maine’s Office of the Chief Medical
    Examiner, which is a division within the Office of the Attorney General.
    Coleman contends that, “[g]iven the importance of Dr. Flomenbaum, his
    testimony, and his credibility,” this bias was another proper avenue for
    5The Massachusetts decision cited actions by Dr. Flomenbaum including his delayed
    reporting of a missing body and underestimation of the backlog of bodies awaiting autopsies.
    Flomenbaum v. Commonwealth, 
    889 N.E.2d 423
    , 430-31 (Mass. 2008).
    17
    cross-examination and that the court abused its discretion by excluding this
    impeachment evidence pursuant to M.R. Evid. 401 and 403.
    [¶23] If Dr. Flomenbaum’s administrative capabilities are relevant to
    his collection and supervision of the sexual assault kit evidence, then it was
    error for the court to exclude this impeachment evidence unless its
    probative value was substantially outweighed by the risks of unfair
    prejudice or confusion of the jury and the issues before it. M.R. Evid. 401,
    403. The State sought to qualify Dr. Flomenbaum as an expert when it
    inquired about his education, experience, and the number of autopsies he
    had performed. In response, Dr. Flomenbaum provided a summary of his
    medical training and employment history, including his time as
    Massachusetts Chief Medical Examiner, and an estimate that he had
    conducted 3,000 to 4,000 autopsies. At the time Dr. Flomenbaum conducted
    the daughter’s autopsy, he was Maine’s Chief Medical Examiner and he
    supervised or personally undertook the collection of the sexual assault kit
    and the other evidence from the daughter’s autopsy.
    [¶24] Evidence of Dr. Flomenbaum’s administrative shortcomings and
    lack of candor with his superiors when he was the Chief Medical Examiner in
    another state are relevant to his performance of his administrative duties as
    18
    the State of Maine’s Chief Medical Examiner, contrary to the trial court’s
    findings. See United States v. York, 
    933 F.2d 1343
    , 1365-66 (7th Cir. 1991)
    (affirming expert medical doctor’s impeachment with questioning about his
    allegedly unprofessional conduct at his previous position as Chief Medical
    Examiner), overruled on other grounds by Wilson v. Williams, 
    182 F.3d 562
    (7th Cir. 1999).    Additionally, the circumstances of Dr. Flomenbaum’s
    termination are directly relevant to an aspect of his professional credentials
    that the State used to qualify Dr. Flomenbaum as an expert in this case.
    See id.; Maderios, 
    2016 ME 155
    , ¶¶ 10-11, 
    149 A.3d 1145
    ; State v. Filler,
    
    2010 ME 90
    , ¶¶ 17-20, 
    3 A.3d 365
     (“[E]vidence tending to impeach [the
    State’s primary witness’s] credibility has greatly enhanced probative value.”
    (quotation marks omitted)).      In establishing Dr. Flomenbaum's expert
    credentials, the State included the fact that he had previously held a
    prestigious position—a fact that may be properly tempered by the fact of his
    involuntary removal from that position.
    [¶25] We must next decide whether the court’s error in limiting
    cross-examination of a state’s witness was harmless based upon “‘the
    importance of the witness’[s] testimony in the prosecution’s case, whether
    the testimony was cumulative, the presence or absence of evidence
    19
    corroborating or contradicting the testimony of the witness on material
    points, the extent of cross-examination otherwise permitted, and, of course,
    the overall strength of the prosecution’s case.’”         State v. Johnson,
    
    2009 ME 103
    , ¶ 18, 
    982 A.2d 320
     (quoting Delaware v. Van Arsdall,
    
    475 U.S. 673
    , 684 (1986)). In this case, Dr. Flomenbaum’s testimony was
    just one of many pieces of evidence presented at trial. In addition to that
    evidence, the court heard testimony from the detectives who recounted
    Coleman’s confession to the murders; the family members and first
    responders who established that, of the three victims, only the daughter was
    found gagged and straddling the end corner of a bed, thus supporting in part
    a finding that she was sexually assaulted; and two forensic analysts from the
    crime laboratory who corroborated Dr. Flomenbaum’s testimony by
    positively identifying blood and semen on the sexual assault kit samples, as
    well as matching Coleman’s DNA with that in the sperm found on the
    daughter and with the DNA found on one of the ligatures. We conclude that
    the court’s error was harmless, in part, because despite Dr. Flomenbaum’s
    importance to the State’s case on the gross sexual assault charge, the State
    presented significant circumstantial evidence to corroborate that the blood
    and semen evidence Dr. Flomenbaum collected was as he characterized it in
    20
    his testimony.           In addition, Coleman was able to cross-examine
    Dr. Flomenbaum generally as to his credibility and alleged bias in favor of
    the State, which decreased any prejudice resulting from the lack of
    cross-examination regarding the Massachusetts termination. 6 The above
    factors along with the other circumstantial evidence and “the record as a
    whole demonstrate[ ] beyond a reasonable doubt that the error did not
    affect the substantial rights of the defendant or contribute to the verdict
    obtained.”       State v. Norwood, 
    2014 ME 97
    , ¶ 14, 
    97 A.3d 613
    ; Johnson,
    
    2009 ME 103
    , ¶ 18, 
    982 A.2d 320
    .
    [¶26]    In sum, we conclude that the circumstances surrounding
    Dr. Flomenbaum’s termination from his employment in Massachusetts due
    to his administrative shortcomings and lack of candor are arguably
    probative of his ability to supervise and process the taking of forensic
    samples and could have tempered the jury’s view of his administrative skill
    and candor in his work in Maine. See York, 
    933 F.2d at 1365-66
    ; Filler,
    
    2010 ME 90
    , ¶¶ 17-20, 
    3 A.3d 365
    . Although the court erred by finding that
    this impeachment evidence was not at all relevant in this case and by
    6Coleman’s cross-examination of Dr. Flomenbaum, while not as extensive as he wished,
    satisfied his right to confront an adverse witness. The Confrontation Clause guarantees an
    adequate and effective, but not unlimited, cross-examination, and the court’s error in limiting this
    questioning did not rise to a deprivation of Coleman’s constitutional right. See State v. Johnson,
    
    2009 ME 103
    , ¶ 15, 
    982 A.2d 320
    ; State v. Brown, 
    321 A.2d 478
    , 485 (Me. 1974).
    21
    precluding any related questioning, those errors were harmless in the face of
    the overwhelming evidence of Coleman’s guilt.7
    B.     Prosecutorial Misconduct
    [¶27] We review preserved claims of prosecutorial misconduct for
    harmless error. State v. Pillsbury, 
    2017 ME 92
    , ¶ 18, 
    161 A.3d 690
    ; State v.
    Dolloff, 
    2012 ME 130
    , ¶¶ 31-34, 
    58 A.3d 1032
    . According to this standard,
    we disregard “[a]ny error, defect, irregularity, or variance that does not
    affect substantial rights.” M.R.U. Crim. P. 52(a). Coleman complains about
    the State’s opening statement that evidence from “vaginal swabs” would
    show “sperm found on a young girl’s vagina” because he claims that the
    swabs should have been referred to as “external genitalia” swabs, in keeping
    with the sexual assault kit’s protocol.                Several witnesses for the State
    testified that sexual assault kits indeed have separate envelopes and
    instructions for “vaginal swabs,” used for internal vaginal collections, and for
    collections from “external genitalia.”              Dr. Flomenbaum testified that he
    7 Coleman correctly notes that he did not confess to the sexual assault charge, on which it was
    the State’s burden to prove beyond a reasonable doubt that genital-to-genital contact occurred.
    See infra ¶¶ 29-30. Dr. Flomenbaum’s testimony provided support for such a finding.
    Specifically, Dr. Flomenbaum testified that the daughter was gagged; that she had blunt force
    trauma to her face; that the abrasions on her buttocks and blood around her vagina and in the
    crotch of her shorts suggested that she was alive when the abrasions occurred; and he concluded
    that her intact hymen ruled out penetrative sex but not necessarily direct genital contact. Neither
    Coleman nor the Massachusetts termination proceedings challenged Dr. Flomenbaum’s forensic
    abilities in performing autopsies and reporting his findings.
    22
    labeled the sexual assault kit swabs, taken from the daughter’s “vaginal area”
    between the labia majora and minora, as vaginal swabs.
    [¶28] The State used these terms in its opening statement, as the Chief
    Medical Examiner did, to accurately describe where the evidence of a sexual
    act was found—inside the labia majora and external to the hymen, not from
    deeper within the victim’s vagina, as Coleman claims the prosecutor said.8
    The State’s opening statement, which was preceded and followed by the
    court’s admonitions that the opening statements were not evidence, was
    free of any misconduct and was “fairly based on the facts [anticipated] in
    evidence.” State v. Cote, 
    2017 ME 73
    , ¶ 27, 
    159 A.3d 831
     (quotation marks
    omitted); State v. Lockhart, 
    2003 ME 108
    , ¶¶ 47-49, 
    830 A.2d 433
    .
    C.       Sufficiency of the Evidence of Gross Sexual Assault
    [¶29] Next, Coleman contends that there was insufficient evidence
    supporting his conviction for gross sexual assault, namely that there was not
    proof beyond a reasonable doubt of direct genital-to-genital contact or proof
    that the victim was alive at the time that such contact occurred.
    See 17-A M.R.S. §§ 251(1)(C), 253(1)(C), 508 (2017). We review a challenge
    that there is insufficient evidence to support the jury’s verdict by viewing all
    The forensic evidence indicated that the semen was found between the labia majora and
    8
    minora, external to the intact hymen.
    23
    the evidence and reasonable inferences drawn therefrom in the light most
    favorable to the State. See State v. Diana, 
    2014 ME 45
    , ¶ 2, 
    89 A.3d 132
    ; State
    v. Skarbinski, 
    2011 ME 65
    , ¶ 6, 
    21 A.3d 86
    .
    [¶30] Section 253(1)(C) requires, in this case, proof of a sexual act, in
    the form of direct genital-to-genital contact, with a person who was not
    Coleman’s spouse and who had not reached twelve years of age. Coleman
    concedes that the daughter was unmarried and under twelve years old. We
    have repeatedly said that “[a] criminal conviction may be based solely on
    circumstantial evidence . . . as long as the evidence supports a finding that
    each element of the crime is proved beyond a reasonable doubt.” State v.
    Moores, 
    2009 ME 102
    , ¶ 10, 
    982 A.2d 318
    ; see also State v. Cheney,
    
    2012 ME 119
    , ¶ 42, 
    55 A.3d 473
    . Despite the lack of direct evidence of how
    Coleman’s semen was deposited on the victim’s genitalia, the jury could have
    rationally inferred, beyond a reasonable doubt, that a sexual act
    (i.e., genital-to-genital contact) had occurred while the victim was alive
    based on the circumstantial evidence presented at trial. See 17-A M.R.S.
    § 251(1)(C); State v. Poblete, 
    2010 ME 37
    , ¶ 30, 
    993 A.2d 1104
    ; State v.
    Chad B., 
    1998 ME 150
    , ¶¶ 7-8, 
    715 A.2d 144
    .
    24
    D.    Chain of Custody of the Sexual Assault Kit
    [¶31] Coleman next asserts that the court erred by finding that the
    State had established a proper chain of custody of the sexual assault kit,
    which was stored under unknown conditions at the Medical Examiner’s
    Office from the afternoon of December 22 until 10:00 a.m. on
    December 24, 2014. We review for clear error a finding that an item of
    physical evidence has been authenticated by a sufficient chain of custody.
    Diana, 
    2014 ME 45
    , ¶¶ 26-27, 
    89 A.3d 132
    ; see M.R. Evid. 901(a). A chain of
    custody “need [not] be ironclad,” and “a minor break goes to the weight of
    the evidence rather than its admissibility.”       Diana, 
    2014 ME 45
    , ¶ 26,
    
    89 A.3d 132
     (alteration in original) (quotation marks omitted) (quoting
    Field & Murray, Maine Evidence § 901.3 at 543). The sexual assault kit
    samples were sealed and consistently in the custody of the Maine State
    Police, the Medical Examiner’s Office, and then the crime laboratory, before
    finally returning to the Maine State Police’s evidence locker. The court did
    not clearly err or otherwise abuse its discretion in admitting the sexual
    assault kit in evidence because the State accounted for the kit’s location and
    sealed condition at all relevant times. See id.
    25
    E.    Sentencing
    [¶32] Coleman finally argues for the first time on appeal that we
    should adopt a clear and convincing standard of proof for aggravating
    factors considered at sentencing. He contends that the sentencing court
    abused its discretion in considering as aggravating factors, upon a less than
    clear and convincing quantum of proof, his prior domestic violence against
    the mother and the victims’ conscious fear and suffering. Where a challenge
    to the court’s application of a standard of proof at sentencing is unpreserved,
    we review the court’s actions for obvious error.         See State v. Butsitsi,
    
    2015 ME 74
    , ¶¶ 19, 22, 
    118 A.3d 222
    ; State v. Schofield, 
    2005 ME 82
    , ¶ 28,
    
    895 A.2d 927
    . As Coleman acknowledged in his brief, we have instructed
    sentencing courts to consider any “reliable and relevant” evidence of
    mitigating or aggravating factors. State v. Waterman, 
    2010 ME 45
    , ¶ 48,
    
    995 A.2d 243
    . This is precisely what the court did in Coleman’s case, and we
    decline to announce a new standard.
    [¶33] Considering the sentence that the court imposed, we review the
    court’s application of the first step of the sentencing analysis—the
    determination of a basic sentence—de novo and we review the court’s
    26
    second step of the analysis—the determination of the final sentence—for an
    abuse of discretion. 17-A M.R.S. §§ 1201(1)(A), 1252-C (2017); Waterman,
    
    2010 ME 45
    , ¶ 42, 
    995 A.2d 243
    ; State v. Cookson, 
    2003 ME 136
    , ¶ 38,
    
    837 A.2d 101
    . Here the court found the existence of several aggravating
    factors justifying a life sentence: (1) multiple deaths, (2) a murder
    committed in the presence of a child, (3) a murder accompanied by sexual
    assault, and (4) the domestic violence nature of the murders. 9                             See
    Waterman, 
    2010 ME 45
    , ¶ 45, 
    995 A.2d 243
    ; State v. Shortsleeves,
    
    580 A.2d 145
    , 149-50 (Me. 1990). On balance, the court determined that the
    mitigating circumstances10 were greatly outweighed by those and additional
    aggravating factors, including Coleman’s clear mind, free from the influence
    of any substances, at the time of the crimes; the impact of the victims’ deaths
    on their family and community; Coleman’s prior acts of domestic violence;
    the victims’ conscious suffering and fear; and Coleman’s lack of remorse and
    consciousness of guilt in his confession. See State v. Hamel, 
    2013 ME 16
    , ¶ 6,
    9 The court also found that the cause of the deaths by strangulation was an aggravating factor
    for sentencing purposes. Although not specifically listed among the Shortsleeves factors,
    strangulation has been cited in other life sentence cases. See State v. Dwyer, 
    2009 ME 127
    , ¶ 38,
    
    985 A.2d 469
    ; State v. Wilson, 
    669 A.2d 766
    , 767-69 (Me. 1996).
    10 The sentencing court found the following mitigating factors: Coleman’s age at the time of
    the crime, his history of substance abuse and mental health issues, his lack of a significant
    criminal record, the absence of premeditation, the evidence that he has family and friends that
    love him, and the terrible circumstances of his childhood.
    27
    
    60 A.3d 783
    ; State v. Schofield, 
    2006 ME 101
    , ¶ 14, 
    904 A.2d 409
    ; Cookson,
    
    2003 ME 136
    , ¶¶ 39-41, 
    837 A.2d 101
    ; Shortsleeves, 
    580 A.2d at 150-51
    .
    Coleman’s challenge to his final sentence, attacking just two of the several
    aggravating factors, is unpersuasive, and the court acted well within its
    discretion in arriving at a maximum sentence of life imprisonment on the
    murder counts.
    The entry is:
    Judgment and sentences affirmed.
    Jeremy Pratt, Esq. (orally), and Ellen Simmons, Esq., Camden, and Logan E.
    Perkins, Esq., Perkins Law Office, Belfast, for appellant Keith Coleman
    Janet T. Mills, Attorney General, and Donald W. Macomber, Asst. Atty. Gen.
    (orally), Office of the Attorney General, Augusta, for appellee State of Maine
    Penobscot County Unified Criminal Docket docket number CR-2014-4662
    FOR CLERK REFERENCE ONLY