The murder trial of Lindsay Clancy has ended in a mistrial after a Massachusetts jury failed to reach a unanimous verdict over whether she was criminally responsible for the deaths of her three children.
Clancy, 36, is accused of strangling five-year-old Cora, three-year-old Dawson and eight-month-old Callan at the family home in Duxbury on January 24, 2023, before attempting to take her own life.
Her defence argued that she was suffering from postpartum psychosis, a rare and severe mental illness, and should not be held criminally responsible. Prosecutors maintained that she knew what she was doing and had planned the killings.
After seven weeks of evidence and more than 36 hours of deliberations, the 12-member jury remained deadlocked. The panel reported on three occasions that it could not agree, with the foreperson indicating that one juror was refusing to apply the law on reasonable doubt.
Clancy’s lawyer, Kevin Reddington, asked Judge William Sullivan to question or remove the juror, but the request was rejected. The judge instead repeated his legal instructions before allowing the jury to deliberate again.
The defence then made an emergency appeal to the Massachusetts Supreme Judicial Court, seeking to halt the mistrial proceedings. The appeal was rejected, clearing the way for Judge Sullivan to formally end the trial.
Criminal defence lawyer Skye Lazaro said the court had been left with no practical alternative once the jury could not reach agreement.
She said Clancy’s legal team had made a final attempt to challenge the holdout juror and delay the decision, but the application to the state’s highest court was unsuccessful.
What happens next in the Lindsay Clancy case
Clancy remains charged with three counts of first-degree murder and is expected to return to Tewksbury Hospital, where she has been held in a psychiatric unit while the case proceeds.
A status hearing has been scheduled for September 29. Prosecutors will then have to decide whether to seek a retrial or pursue another resolution, potentially including a plea agreement.
Because the case ended in a mistrial rather than an acquittal, the constitutional protection against double jeopardy does not prevent prosecutors from bringing the charges before a new jury.
Lazaro said a mistrial effectively returned the case to the position it occupied before the original trial began. A retrial would require a fresh jury-selection process and would force both sides to revisit evidence heard during the lengthy proceedings.
The case has drawn intense attention to the way postpartum mental illness is recognised and treated in the United States. Defence experts said Clancy’s mental health deteriorated after the birth of her youngest child and that medication and inadequate treatment played a role in the crisis.
Plymouth County District Attorney Timothy Cruz said the decision on a possible retrial would not be driven by public opinion, but by the pursuit of justice for the three children.
Patrick Clancy, the children’s father and Clancy’s estranged husband, said through his lawyer that reliving the deaths in another trial would be extraordinarily painful for him and his family.
