38 Hours, No Verdict: Lindsay Clancy Trial Ends in Mistrial

Thirty-eight hours. That is how long nine women and three men sat with the same question — whether Lindsay Clancy was criminally responsible for strangling her three children — before telling a Massachusetts judge they could not agree ⁸⁴. After about seven days of deliberations, after two earlier reports of deadlock and then a third, Judge William Sullivan declared a mistrial on Friday, September 4, 2026 ²³⁸⁹.

Our video went up on August 29, when the jury had logged about ten hours over two days and had just asked to see prescription pill bottles and a knife before being sent home for the weekend ¹. What followed superseded that snapshot entirely: jurors passed more than 35 hours by their sixth day and ultimately reached roughly 38 hours over seven days without a verdict ⁷⁸. The detail about deliberations resuming Monday is now history, overtaken by the mistrial declared the prior Friday ²³⁹.

The facts the jury was asked to judge date to January 24, 2023, at the family home in Duxbury, Massachusetts ⁴⁶. Prosecutors say Clancy strangled her children that day: Cora was five, Dawson was three, and Callan was eight months old ⁴⁶. Cora and Dawson died that night, and Callan died three days later at Boston Children's Hospital ⁴⁶. Clancy then cut her own wrists and neck and jumped from a second-story window, leaving her paralyzed ⁴⁶.

Both sides agreed Clancy was mentally ill and had attempted suicide, but they diverged sharply on what that meant for criminal responsibility ⁴⁶. Under Massachusetts law, a finding of not criminally responsible requires a mental disease or defect that robbed the defendant of substantial capacity to know right from wrong or to follow the law, and the burden is on prosecutors to prove she had that capacity ⁴⁶.

For each child, jurors could choose first-degree murder, second-degree murder, manslaughter, or a finding that Clancy was not criminally responsible, which would have sent her to a state psychiatric hospital rather than prison ⁴⁶. The manslaughter option was added over prosecution objection, expanding the middle ground between a murder conviction carrying life without parole and a hospital commitment with no release date ⁴⁶.

Testimony concluded Wednesday, August 26, after 21 days and more than 70 witnesses, according to WBUR, a span the Boston Globe described as five weeks of trial ¹⁰⁵. Our video described 22 days of testimony, which closely matches WBUR's figure of 21 days; the research file's 21 days controls here ¹⁰. Closing arguments were heard Thursday, August 27, with prosecutor Jennifer Sprague arguing for the state and defense attorney Kevin Reddington arguing that the medical system had failed Clancy ⁴⁵⁶. Jury deliberations began that same day ⁴⁵⁶.

Reddington's closing blamed a fractured course of care in which Clancy was prescribed as many as 13 psychiatric medications over four months, with no single provider seeing the whole picture, and argued that psychosis drove her ⁵⁶. Defense experts testified about her mental state, including Dr. Gregory Saathoff as the last defense witness ¹⁰. The sources do not quote verbatim the defense testimony about command hallucinations and delusions of control described in our narration ¹⁰. Prosecutors pointed instead to evidence they said showed deliberate intent, including phone searches, mapping, and Clancy sending her husband on errands ⁴⁶.

The deliberations themselves became a second trial of endurance. After closing arguments on August 27, the panel deliberated into September, reaching a sixth day with more than 35 hours logged ⁷. There were two earlier deadlock reports before a third deadlock on day seven ⁹¹¹. On September 4, a dispute over a juror arose, and Judge Sullivan said he would declare a mistrial and gave the defense one hour to appeal before starting day-seven deliberations ⁹. The mistrial was then declared that Friday after the panel deadlocked ²³⁸. WBUR reported the jurors said they failed to reach a verdict with a heavy heart ³.

A mistrial does not acquit and does not convict; it leaves the charges unresolved and preserves the possibility that prosecutors could try the case again ⁸. None of the sources in the reporting file states whether prosecutors will seek a retrial, and none provides verbatim quotes from Clancy, prosecutors, or the defense beyond that heavy heart phrase ³⁸. CNN noted the result leaves Clancy's fate unresolved in the court of public opinion for now ⁸.