MISTRIAL IN LINDSAY CLANCY CASE: One Juror Blocks Acquittal After Jury Deadlocks Over Mother Who Killed Her Three Children

PLYMOUTH, Mass. — A Massachusetts judge declared a mistrial Friday in the murder trial of Lindsay Clancy after jurors reported they were hopelessly deadlocked for a third time, ending more than 36 hours of deliberations without a verdict.

Clancy, a former labor and delivery nurse, does not deny strangling her three children, Cora, 5, Dawson, 3, and 8-month-old Callan — in the family’s Duxbury home in January 2023. She then jumped from a second-story window in a suicide attempt that left her paralyzed from the waist down. Prosecutors charged her with first-degree murder. Her defense argued she was not criminally responsible because of postpartum psychosis and the effects of psychiatric medications.

The jury had five options: not guilty, not guilty by reason of insanity, first-degree murder, second-degree murder, or manslaughter. Unanimity was required. After days of deadlock notes, the defense told the court that a single male juror was refusing to apply the judge’s instructions on reasonable doubt in a way that would produce a not-guilty result, describing the split as 11-1. The judge declined to remove that juror and later declared a mistrial.

Clancy remains in custody at Tewksbury Hospital. Prosecutors now decide whether to retry the case, seek a plea, or drop the charges.

The reported 11-1 deadlock has produced a sharp public reaction. Commentator Nick Sortor and others framed the holdout as the only person standing between Clancy and an acquittal. That framing rests on the defense’s own characterization of the deliberations: eleven jurors appeared prepared to accept the mental-illness defense and return a not-guilty or not-responsible verdict; one did not.

The case itself is not ambiguous on the physical facts. Three young children were killed by their mother in their home. The legal question was never “did she do it?” It was whether a jury would treat severe postpartum mental illness as extinguishing criminal responsibility. Eleven jurors, according to the account given in court, were willing to answer yes. One was not.

That split is why the trial ended without resolution. It is also why the single holdout has been described by critics of the defense as the person who prevented an immediate walk-away on an insanity theory. Whether that juror was applying the law as instructed or simply refusing to acquit is now a matter of competing claims; the judge would not investigate further and would not dismiss him.

What remains is a hung jury, a mother still in custody, three dead children, and a public argument over whether postpartum psychosis should function as a complete legal shield when a parent kills her own kids. Prosecutors will have to decide if they want to try the same case again in front of a new panel. The last one could not agree.