The Last Man Standing

Eleven reported votes stood on one side. One juror stood on the other.

On January 24, 2023, three young children died inside their Massachusetts home. Their mother, Lindsay Clancy, survived. What followed became a closely watched test of how the criminal courts understand maternal mental illness.

At trial, prosecutors presented evidence they said demonstrated planning, opportunity, and intent. The defense argued that Clancy had been overtaken by severe psychiatric illness and could not be held criminally responsible. Medical records, expert testimony, family accounts, and Massachusetts law pointed the jury toward two irreconcilable explanations.

After more than eighty witnesses and more than three hundred exhibits, the case came down to twelve jurors—and a disagreement that could not be resolved.

The Last Man Standing reconstructs the events leading to January 24, the competing medical and legal narratives presented at trial, and the extraordinary deliberations that ended with eleven reported votes on one side and a single dissenter on the other.

Carefully reported and written with restraint, this book examines:

• what Lindsay Clancy reported before the killings;
• what her doctors and family members observed;
• how postpartum depression and postpartum psychosis differ;
• the prosecution's evidence of intent;
• the defense's reconstruction of psychiatric illness;
• Massachusetts law on criminal responsibility; and
• the jury conflict that ultimately produced a mistrial.

This is not a story with a simple verdict. It is an examination of reasonable doubt, maternal mental illness, criminal responsibility, and what happens when law and medicine offer profoundly different explanations for the same unthinkable event.