During the 12th day of Lindsay Clancy’s murder trial, a Massachusetts State Police sergeant admitted that investigators had considered a theory that a psychologist hired by the defense had coached Clancy to claim she was hearing voices. The statement by Sgt. Dan Lawlor caused a stir in the Plymouth County Superior Court, drawing a sharp reaction from the prosecution and rapt attention from the jury.
Clancy, a former labor and delivery nurse, faces three counts of first-degree murder for allegedly strangling her three young children—Cora, five, Dawson, three, and Callan, eight months— on January 24, 2023, at their home in Duxbury, Massachusetts. She then reportedly attempted suicide by cutting her wrists and neck and jumping from a second-floor window. Clancy has pleaded not guilty by reason of insanity, asserting she was suffering from severe postpartum depression and psychosis and heard a voice commanding her to kill her children and herself.
Courtroom Exchange
The pivotal moment occurred during a cross-examination by Clancy’s defense attorney, Kevin Reddington. Reddington questioned Sgt. Lawlor about a visit by forensic psychologist Dr. Paul Zeizel to Clancy while she was hospitalized and receiving treatment shortly after the killings. During this visit, Dr. Zeizel allowed Clancy to use his cell phone to call her husband, Patrick Clancy. In that call, Lindsay Clancy reportedly told her husband she had heard voices on the day of the murders.
Reddington pressed Sgt. Lawlor on whether investigators had a theory that Dr. Zeizel had instructed Clancy to say she heard voices to build a defense. "Did you know that the prosecutor is saying that MY doctor told her to call Patrick to say she heard voices?" Reddington asked. Assistant District Attorney Shanan Buckingham objected, and Judge William Sullivan called for a sidebar, during which the prosecution and defense debated the line of questioning for approximately 10 minutes.
Sgt. Lawlor testified that he had observed Dr. Zeizel entering Clancy's hospital room but could not confirm if the door was open or closed, nor could he hear any conversations. He acknowledged that he had discussed possible theories with the prosecution team, including the idea that the psychologist had "planted that seed in her mind." However, he stated he did not recall discussing this specific theory with the prosecution team. When pressed, Lawlor admitted that this was a "theory" and that there was "no investigative basis" for it, meaning it was based on speculation.
Defense Strategy and State's Case
The defense’s introduction of this theory comes as prosecutors have sought to cast doubt on Clancy’s claims of postpartum psychosis. They have questioned her being alone with Dr. Zeizel in the hospital room and suggested this was the first time she mentioned hearing voices. Testimony from friends, family, and medical professionals has indicated that Clancy had not previously told them about hearing voices.
The defense's move to highlight the speculative nature of the prosecution's theory may serve as a blow to the state's case, demonstrating to the jury that investigators found no evidence to support this particular line of inquiry. As Sgt. Lawlor was excused, Reddington appeared to smile. The trial is ongoing.