The trial of Lindsay Clancy, the Massachusetts mother accused of killing her three young children in January 2023, neared its conclusion as her defense attorney urged jurors to find her not guilty by reason of insanity. Clancy, 36, admits strangling her children with exercise bands at her Duxbury home before attempting suicide by jumping from a second-story window. Her lawyer argued that she was suffering from postpartum psychosis and did not intend to murder her children, while prosecutors have pointed to evidence they say shows she planned the killings. Jurors are expected to begin deliberations after the judge finishes instructing them on the law.