Archive · 5 Sep 2026
Massachusetts Lindsay Clancy Triple-Murder Trial Ends Without Verdict
Lindsay Clancy was accused of killing her three young children.
The children died at their home in Duxbury, Massachusetts, in January 2023.
Clancy’s lawyers said she was suffering from a serious illness called postpartum psychosis.
They said the illness caused her to lose touch with reality and prevented her from understanding or controlling her actions.
Prosecutors agreed that Clancy had serious mental-health problems but said she knew the killings were wrong.
They also argued that she planned the killings before trying to take her own life.
The jury discussed the case for seven days but could not agree on a verdict.
Because the jury was deadlocked, the judge ended the trial without deciding whether Clancy was guilty or not guilty.
Prosecutors may now seek another trial with a new jury.
A Massachusetts judge declared a mistrial after 12 jurors failed to reach a unanimous verdict.
Lindsay Clancy acknowledged strangling her children Cora, Dawson and Callan in Duxbury in January 2023.
The defense argued postpartum psychosis made Clancy unable to understand or control her actions.
Prosecutors argued Clancy understood the killings were wrong and deliberately planned them.
Prosecutors must decide whether to seek a retrial; Clancy has a hearing scheduled for September 29.
- Who
- Lindsay Clancy, her three children, prosecutors and Clancy’s defense team.
- What
- A judge declared a mistrial in Clancy’s triple-murder trial after the jury remained deadlocked.
- When
- The mistrial was declared Friday, September 4, after seven days of deliberations; the killings occurred on January 24, 2023.
- Where
- The trial took place in Plymouth, Massachusetts; the killings occurred in the family home in Duxbury.
- Why
- The jury sent three notes indicating it could not reach a unanimous verdict, and Massachusetts’ highest court rejected Clancy’s emergency appeal to continue deliberations.
Defense
Prosecution
Criminal responsibility
Defense
Clancy’s lawyers argued that postpartum psychosis caused a psychotic episode in which she could not understand or control her actions.
Prosecution
Prosecutors acknowledged Clancy’s severe mental-health struggles but argued that she understood what she was doing and knew it was wrong.
Whether the killings were planned
Defense
The defense portrayed the deaths as the result of psychosis rather than a rational, deliberate decision.
Prosecution
Prosecutors pointed to evidence that Clancy sent her husband on errands and mapped his expected return time as support for their claim that she planned the killings.
Deadlocked jury
Defense
The defense argued that a holdout juror acknowledged doubts but refused to apply the reasonable-doubt standard, and sought further questioning or removal of that juror.
Prosecution
Prosecutors supported the mistrial after repeated jury notes indicated that the panel could not reach a unanimous verdict.
- Defendant
- Lindsay Clancy, 36, a former labor and delivery nurse
- Children
- Cora, 5; Dawson, 3; and Callan, 8 months
- Cause of mistrial
- The 12-member jury failed to reach a unanimous verdict after seven days of deliberations
- Trial length
- Nearly six weeks, with 21 days of testimony and more than 80 witnesses
- Defense position
- Clancy was experiencing postpartum psychosis and should be found not guilty by reason of lack of criminal responsibility
- Prosecution position
- Clancy understood the wrongfulness of the killings and deliberately planned them
- Next court date
- September 29
Sources
Mistrial declared in Lindsay Clancy case after jury remains divided over deaths of her three children
Lindsay Clancy trial over killing her children ends in mistrial
Judge Declares Mistrial In Lindsay Clancy Triple-Murder Trial: What Does It Mean?
Lindsay Clancy children’s killings: Why was mistrial declared and what’s next?
