Trial examines postpartum psychosis claim in Lindsay Clancy murder case

Jurors in Plymouth, Massachusetts, heard testimony from psychiatrists, counselors and medication experts about the mental-health condition of Lindsay Clancy, who pleaded guilty to killing her three children in January 2023. The defense argues that postpartum psychosis, compounded by over-medication and inadequate medical attention, impaired her judgment and should preclude criminal liability.

Three psychiatrists who saw Clancy before the killings testified that they did not diagnose postpartum psychosis. Dr. Alia Goodheart described her as a "low-risk" patient who reported insomnia, numbness and suicidal thoughts but no plan to act. Dr. Jennifer Tufts said Clancy expressed worry about future suicidal thoughts, advised her to stop taking Zoloft, try natural remedies such as fish oil, and use lorazepam for severe anxiety. Court records show Clancy was prescribed 13 different psychiatric medications in the months leading up to the murders.

The prosecution emphasized that Clancy’s suicide attempt after the killings, which left her paralyzed from the waist down, indicated a deliberate intent to kill her children. The presiding judge reminded jurors to base their verdict on facts rather than emotion.

"We see it frequently and we see it escalate to unfortunate outcomes, because of a lack of education and awareness for moms, their partners and for members of the community that could potentially intervene before it gets to the state it got to with Lindsay Clancy," said Dr. Nicole Kumi, an expert in postpartum mental health.

Family members and friends described Clancy as a caring mother who struggled with sleep deprivation and anxiety. Her former father-in-law called her a "very good" mother, and a childhood friend said she had been open about her mental-health challenges. A family therapist noted Clancy felt "like a zombie" and could not sleep, while a pediatrician recalled a routine check-up for the older child as "very normal."

Dr. Kumi highlighted systemic gaps in postpartum care, noting that symptoms in mothers with multiple children are often overlooked because of assumptions about coping ability. She said Clancy "knew something was wrong, but she didn’t know what was wrong" and that the healthcare response focused on medication rather than comprehensive support.

The trial continues to explore how postpartum mental-health disorders are diagnosed and treated, and whether failures in the medical system contributed to the tragedy.