What to Know as Lindsay Clancy Murder Trial Goes to the Jury

The murder case against Lindsay Clancy now rests with a jury in Massachusetts after a month of often wrenching testimony about the deaths of her three children in 2023 and the psychiatric deterioration she experienced in the months before. Closing arguments ended Thursday, and the jury was sent to begin deliberations at around 12:30 p.m. The trial has become something broader than one defendant's fate, reigniting arguments about maternal well-being and whether the mental health system failed a woman who was desperately seeking help.

Clancy, 36, is a former labor and delivery nurse from Duxbury, a town on the Massachusetts South Shore. She was on maternity leave at the time of the killings and has been in custody since. She is charged with murder in the deaths of her children — Cora, 5, Dawson, 3, and Callan, 8 months. She has acknowledged killing them but pleaded not guilty by reason of lack of criminal responsibility. The children were strangled with exercise bands in the family's home on Jan. 24, 2023. Their father, Patrick Clancy, discovered them in the basement after running errands his wife asked him to do; he then found her badly injured outside, after she jumped from a second-story window. The fall left her paralyzed from the waist down, and she has used a wheelchair in court.

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Editor's Note: This story includes discussion of suicide. If you or someone you know needs help, the 988 Suicide and Crisis Lifeline in the U.S. is available by calling or texting 988.

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At the heart of the trial is a question rooted in Massachusetts law: Did Clancy, at the moment of the killings, understand that her actions were wrong? A defendant may be found not guilty by reason of lack of criminal responsibility if a mental disease or defect made her unable to appreciate the wrongfulness of her conduct. The defense does not deny that Clancy killed her children. It argues that bipolar disorder and postpartum psychosis distorted her perception of reality and drove her to act on a voice she believed was telling her to kill the children so she could end her own life.

Prosecutors offer a different portrait. They say Clancy acted deliberately and with awareness, pointing to the ordinary tasks she completed that day — taking the children to a doctor's appointment, playing with them in the snow, and sending Patrick Clancy out on errands — as evidence of a mind capable of planning. They have also raised questions about the seriousness of her suicide attempt and said the testimony of their experts undercuts her account of being commanded by a voice.

The defense's lead attorney, Kevin Reddington, has portrayed Clancy as a woman in the grip of a severe psychiatric crisis. Diaries entered into evidence show her describing herself as anxious, overwhelmed, "desperate to get a mental break from taking care of everyone," and beset by "brain fog" while caring for her infant. In the months before the killings, she sought help from multiple providers, and in early January 2023 she admitted herself to a psychiatric hospital for several days. Her lawyers argue that her care was fragmented, her medications were poorly managed, and the system failed to recognize the escalating danger.

Both sides called expert psychiatrists who gave fundamentally different accounts of Clancy's mental state. A defense expert testified that she was "clearly psychotic" and held the delusional belief that her children would be better off dying with her than left behind. The prosecution's experts agreed that Clancy had serious psychological problems but said she was not psychotic, knew right from wrong, and retained control over her behavior. They also questioned whether she had actually experienced a command hallucination.

The case has also focused attention on postpartum psychosis, a rare but potentially devastating condition that can bring on disorganized thinking, delusions, hallucinations and other symptoms. Estimates cited in testimony put the number of women affected at 1 to 2 per 1,000 after childbirth. The risk is higher for women with certain psychiatric conditions, including bipolar disorder. Postpartum psychosis is different from postpartum depression, a more common mood disorder, and it can escalate quickly in ways that are hard for providers to predict.

Prosecutors rejected the suggestion that Clancy was failed by the health system. They noted that she had access to care but sometimes ignored providers' advice, switched clinicians and stopped taking certain medications. Clinicians who treated her testified that she reported suicidal thoughts but denied having a plan to harm herself or anyone else, and they said they did not observe signs of mania or psychosis during their appointments.

One moment of testimony stood out. Clancy's mother said that in December 2022, Clancy told both her mother and Patrick Clancy that she had thought about harming her children. The defense has pointed to those statements as evidence of her illness and a plea for help. Prosecutors have used them to argue that she understood the wrongfulness of such thoughts and was able to conceal them from her doctors.

Clancy did not take the witness stand. She watched the trial from the defense table, occasionally weeping, including when prosecutors showed the jury autopsy photographs of her children.

The verdict options carry enormous consequences. If Clancy is convicted of murder, she could be sentenced to life in prison without the possibility of parole. If the jury finds she lacked criminal responsibility, the court will decide whether she can be released from custody or should remain confined to a state mental health facility. If the jury cannot reach a verdict, prosecutors would have to decide whether to retry her, and a mistrial for other reasons could depend on the circumstances that caused it.

Outside the courtroom, the case has already spurred demonstrations and debate about how the country treats new mothers in psychiatric crisis. For many, the trial is not just about Clancy's guilt or innocence, but about whether the warning signs she displayed were missed — and whether the system that was supposed to help her did enough to prevent a tragedy.