Lindsay Clancy's psychiatrist to testify in murder trial | Live coverage

Jurors in the murder trial of Lindsay Clancy are set to hear critical testimony on Friday from the psychiatrist who defense lawyers allege failed to properly treat Clancy's declining mental health in the months before she killed her children.

Clancy, 35, has pleaded not guilty to three murder charges in connection with the deaths of her 5-year-old daughter Cora, 3-year-old son Dawson, and infant son Callan at her family's home in the Boston suburb of Duxbury on Jan. 24, 2023.

Clancy's defense attorney, Kevin Reddington, has argued she had postpartum psychosis and severe mental illness, and that she attempted to take her own life after strangling her children.

Reddington shared Thursday that prosecutors plan to call psychiatrist Jennifer Tufts to the witness stand on Friday and potentially nurse practitioner Rebecca Jollotta as well.

Both medical professionals are at the center of civil lawsuits filed by Lindsay Clancy and her ex-husband Patrick Clancy, who allege her doctors overmedicated and failed to properly diagnose her following her youngest son's birth.

"She recognized something was wrong with her. She sought medical treatment. She went to emergency rooms. She called crisis hotlines. She admitted herself to hospitals," Lindsay Clancy's civil lawsuit states. "And still, the medical system failed her completely."

Both Tufts and Jollotta, as well as their affiliated health systems, have denied liability, arguing in an April court filing that the children's deaths "were not reasonably foreseeable."

Prosecutors have attempted to cast doubt on Lindsay Clancy's claim that she was not properly treated for her mental health issues, arguing that she was not serious about treating her condition and alleging she changed doctors and medications frequently.

Prosecutors say Clancy's medical team is not to blame for her actions.

The testimony follows an emotional day in court Thursday, where jurors heard from Clancy's former father-in-law, some of her close friends, and the medical examiner who detailed the fatal injuries to 8-month-old Callan Clancy.

Amy Bevins, Clancy's friend of 29 years, told jurors Thursday that Clancy had told her she was "taking a medication that caused her to have some dark thoughts, but that she was going to, or had been weaning, like tapering off that medication" in the months before she killed her children and attempted to take her own life.

Another of Clancy's friends, Bethany DeCollibus testified in court Thursday that Clancy told her she had been struggling with sleeping and felt like "a zombie" at the time.

Christopher Clancy, the grandfather of Lindsay Clancy's three children, also testified in court Thursday, recounting how happy his daughter-in-law had appeared in December 2022, just weeks before the killings.

"She was very, very good. She fed them great. She did a lot of things with them like the all-American family," he told jurors.

EDITOR'S NOTE: This story includes discussion of suicide. If you or someone you know needs help, the national suicide and crisis lifeline in the U.S. is available by calling or texting 988.