Lindsay Clancy defense rests, but one question could decide the triple-killing case

The defense rested in Lindsay Clancy's trial after experts testified that severe postpartum psychosis left her unable to understand her actions
Lindsay Clancy's lawyers finished presenting evidence as the Massachusetts trial moved closer to closing arguments and a verdict (CJ Gunther/The Boston Herald via AP, Pool)
Lindsay Clancy's lawyers finished presenting evidence as the Massachusetts trial moved closer to closing arguments and a verdict (CJ Gunther/The Boston Herald via AP, Pool)

WASHINGTON, DC: The defense has rested in the triple-killing trial of Lindsay Clancy after a psychiatrist testified that she was “frankly psychotic” when she fatally strangled her three children in January 2023.

Clancy, 36, does not dispute that she killed Cora, 5, Dawson, 3, and Callan, 8 months, but her lawyers argue she was not criminally responsible because of severe postpartum psychosis.

Defendant Lindsay Clancy awaits the start of proceedings during her murder trial at the Plymouth Superior Court in Plymouth, Mass., on Thursday, July 30, 2026. (CJ Gunther/The Boston Herald via AP, Pool) CORRECTION: Source is The Boston Herald, not The Boston Globe.
Lindsay Clancy's defense has rested after 10 witnesses testified about her mental health before the January 2023 killings (CJ Gunther/The Boston Herald via AP, Pool)

Clancy did not testify. Her defense called 10 witnesses, including mental-health experts and family members who described a sharp deterioration in her condition after the birth of her youngest child.

The prosecution has argued that she killed the children deliberately and was not experiencing psychosis.

Psychiatrist delivers defense's final testimony

The defense’s final witness, forensic psychiatrist Dr Phillip Resnick, told jurors that Clancy was “frankly psychotic” on the day of the killings.



Resnick supported the defense account that Clancy experienced an auditory hallucination and believed a male voice was ordering her to kill her children and then herself.

Earlier, clinical and forensic psychologist Paul Zeizel testified that Clancy was unable to understand that her actions were wrong. 

He said she had bipolar disorder with postpartum psychosis and could experience periods in which she appeared functional despite being psychotic.



Another defense expert, Dr Donald Condie, testified that people experiencing psychosis may minimize symptoms because they fear the consequences.

Clancy had reportedly worried that authorities could take her children away if she disclosed the severity of what she was experiencing.

A wedding photo is seen in a bin of papers during the murder trial for Lindsay Clancy at Plymouth Superior Court in Plymouth, Mass., on Thursday, July 30, 2026. (CJ Gunther/The Boston Herald via AP, Pool)
A wedding photo is seen in a bin of papers during the trial for Lindsay Clancy at Plymouth Superior Court in Plymouth, Mass, on Thursday, July 30, 2026 (CJ Gunther/The Boston Herald via AP, Pool)

Family describes desperate search for help

Clancy’s relatives testified that her mental health deteriorated rapidly in the months before the killings.

Her mother, Paula Musgrove, said Clancy became increasingly anxious, struggled with insomnia, lost weight, and repeatedly said she did not feel like herself.

(Lindsay Marie Clancy/Facebook)
Clancy’s family told jurors about her worsening insomnia, anxiety, and self-harm thoughts in the months before the killings (Lindsay Marie Clancy/Facebook)

She also testified that Clancy eventually told family members she was having thoughts of harming her children.

The defense presented evidence that Clancy sought treatment from multiple providers and contacted a self-harm crisis center twice. Her former mother-in-law described her as “begging for help.”

Mental-health testimony also focused on medications Clancy received before the killings and her reports that some treatments made her condition worse.

Paula Musgrove and Mike Musgrove, second from right, parents of Lindsay Clancy, react to testimony in Clancy's murder trial, Thursday, Aug. 13, 2026., in Plymouth, Mass. Josh Reynolds/Pool (AP Photo/Josh Reynolds, Pool)
Paula Musgrove and Mike Musgrove, second from right, parents of Lindsay Clancy, react to testimony in Clancy's trial, Thursday, August 13, 2026, in Plymouth, Mass Josh Reynolds/Pool (AP Photo/Josh Reynolds, Pool)

Prosecutors challenge psychosis defense

Prosecutors have argued that Clancy deliberately killed her three children and understood the nature of her actions.

They have acknowledged her mental-health struggles but disputed the defense’s claim that she was legally unable to understand right from wrong.

During questioning, prosecutors focused on Clancy’s interactions with medical providers before the killings and highlighted that she did not consistently report hearing a male voice.

Defendant Lindsay Clancy looks away from a photograph on a display as she listens during her murder trial at Plymouth Superior Court in Plymouth, Mass., on Thursday, July 30, 2026. (CJ Gunther/The Boston Herald via AP, Pool)
Prosecutors questioned whether Clancy’s reported symptoms support the defense’s claim that she could not understand her actions were wrong (CJ Gunther/The Boston Herald via AP, Pool)

Defense experts, however, testified that psychotic symptoms can come and go and that patients may hide severe symptoms because they fear losing their children.

The competing accounts now leave jurors with the central issue in the case: whether Clancy’s mental state made her legally responsible for the deaths.

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