A judge denied a mistrial in the Lindsay Clancy case after a prosecution expert briefly referenced her Catholic upbringing, and the trial moved forward as experts and evidence tested the core insanity claim.
The courtroom moment that nearly derailed the trial involved a prosecution witness who began to mention religion, prompting an immediate objection and a sharp rebuke from the judge as “absolutely inappropriate.” The judge told jurors to disregard any religion-related testimony and rejected the defense’s request to declare a mistrial, allowing the proceedings to continue. The exchange followed an earlier question about Catholic practice that also drew judicial intervention.
The most consequential testimony came from forensic psychologist Dr. Kirk Heilbrun, who told jurors he believes Clancy has bipolar disorder but was not psychotic at the time of the killings. Heilbrun testified he does not think Clancy suffered a psychotic break in January 2023, when prosecutors say she strangled her three children. That conclusion directly challenges the defense’s plan to use postpartum psychosis as a legal excuse.
The defense contends Clancy experienced postpartum psychosis and obeyed a male external voice that told her to kill the children, but Heilbrun picked that account apart step by step. He noted the unusual shape of the alleged hallucination, which reportedly lasted roughly 18 minutes and then disappeared without recurring. That temporal precision and singularity, Heilbrun said, is not typical for command hallucinations.
“She heard a voice that she never heard before and she’s never experienced it since, but she only experienced it for the 18 minutes or so that it took to kill the children. To put it mildly, that would be a very, very unusual pattern or manifestation of how this kind of thing comes about.”
Heilbrun flagged three spots where Clancy’s description of symptoms resembled exaggeration or fabrication, judged one element genuine, and called another “kind of mixed.” He emphasized that a hallucination perfectly timed to the killings and never returning is inconsistent with typical clinical presentations. The prosecution used that clinical skepticism to push back on the insanity narrative.
He also highlighted what Clancy reportedly said immediately after the killings when her then-husband found her injured: when asked, “What did you do?” she answered, “I tried to kill myself.” Heilbrun argued that a true command hallucination might prompt a different response, such as “I did what I had to do. I did what the voice said.” That contrast was presented to suggest awareness of actions rather than a delusional compulsion.
The prosecution presented evidence it says points toward premeditation rather than a sudden psychotic episode, including searches and communications that they say suggest planning. Prosecutors highlighted an alleged Apple Maps search and a text about takeout roughly an hour before the killings as pieces that fit a pattern of preparation. That sequence is offered to show functioning and deliberation in the hours leading up to the deaths.
Another prosecution expert, Dr. Avram Mack, testified that Clancy showed no signs of psychosis and was capable of distinguishing right from wrong at the relevant time. Those clinical opinions stack up against the defense’s claim that postpartum psychosis rendered Clancy incapable of understanding the wrongfulness of her actions. The experts’ consensus mattered in the court’s push toward closing arguments.
Clancy has stipulated to key physical evidence in the case, acknowledging items prosecutors planned to prove and clearing those facts from dispute in court. In open court she agreed to waive certain proofs after the judge asked, “You are basically relieving the Commonwealth of its burden to prove certain facts. Is that what you want to do?” She answered, “Yes, your honor.” Her lawyer later said plainly, “We have not contested the government’s case.”
Reported details about her medication history were introduced to show she was receiving psychiatric care, but that fact cuts both ways in the trial narrative. Reports indicate Clancy was on six psychiatric medications at the time of the killings and had been prescribed 15 different drugs in the four months prior to January 24, 2023. The prosecution argues medication and treatment history do not prove she was incapable of planning or knowing right from wrong.
The prosecution also presented testimony that Clancy told each child “Go to God, baby” while strangling them, a chilling detail relied on to argue deliberate intent rather than impulsive psychosis. That specific phrase was offered to portray the killings as purposeful and oriented toward a finality consistent with a plan to end her own life while also killing the children. The medical and behavioral evidence was framed to support that interpretation.
Judicial conduct has been in play throughout the trial as the judge repeatedly stepped in to curb questions and testimony deemed improper, most notably where religion surfaced. The court’s rulings kept testimony confined and the trial on schedule, but defense counsel labeled the pattern of religious references willful misconduct by the Commonwealth. Whether jurors can fully set aside the religion mention after being told to disregard it remains unknown.
With cross-examination of Heilbrun expected next and closing arguments close behind, the defense faces a heavy burden to reframe the 18-minute hallucination claim as plausible to a jury hearing expert testimony to the contrary. The core question for jurors is whether a voice no one else heard, appearing and vanishing in perfect sync with the killings, removes criminal responsibility. The trial is moving toward that decision point amid intense public attention and clinical debate.
