A psychologist testifying for the defense in the trial of Lindsay Clancy said she was in a psychotic state when she killed her three young children in their Massachusetts home in January 2023.
The psychologist, Dr. Katherine Porter, told the court that Clancy suffered from severe postpartum depression and that the combination of medications she was taking, along with sleep deprivation, contributed to a psychotic episode that impaired her ability to distinguish right from wrong.
Defense Argues Insanity
Clancy, 33, has pleaded not guilty by reason of insanity to charges of murder in the deaths of her 5-year-old daughter, 3-year-old son, and 8-month-old daughter. Prosecutors have argued she planned the killings and was aware of her actions.
Dr. Porter, a clinical psychologist with expertise in postpartum mental health, spent two days on the stand describing Clancy's mental state in the weeks before the killings. She said Clancy had been prescribed multiple psychiatric medications, including antidepressants and antipsychotics, and that the side effects may have worsened her condition.
Prosecution Cross-Examination
Under cross-examination, prosecutors challenged Dr. Porter's conclusions, pointing to Clancy's internet searches for methods of killing and her attempts to conceal her actions. They suggested she was capable of rational thought and planning.
The trial, being held in Plymouth County Superior Court, is expected to continue with additional expert testimony from both sides. The jury will ultimately decide whether Clancy was legally insane at the time of the killings.
