The murder trial of Lindsay Clancy, a Massachusetts woman charged with killing her three children, got underway on July 27, 2026, opening a closely watched case in which the defense argues that severe postpartum psychosis left Clancy unable to understand or control her actions at the time of the deaths.

Clancy, a labor and delivery nurse, was charged after her three children — ages five years, three years, and eight months — were found strangled at the family's Duxbury home in January 2023. Clancy herself survived after jumping from a second-story window following the incident.

The early stages of the trial were marked by a heated courtroom exchange over the admissibility and presentation of 911 call recordings and crime scene photographs, setting a combative tone between prosecutors and the defense ahead of opening statements.

Prosecutors are expected to argue that Clancy acted deliberately and with intent, while her defense team will present expert testimony on postpartum psychosis — a rare but severe psychiatric condition — contending it rendered her legally not responsible for her actions. The case has drawn national attention both for its tragic circumstances and for the broader questions it raises about postpartum mental illness and criminal accountability.