Lindsay Clancy Case: Expert Witness Details the Voices and Thoughts Prosecutors Can't Explain Away

The murder trial of Lindsay Clancy, 34, continued this week in Plymouth Superior Court, where the Duxbury mother faces three counts of murder and three counts of strangulation in the January 24, 2023, deaths of her three children — Cora, 5, Dawson, 3, and Callan, 7 months — inside the family's Summer Street home. Prosecutors allege she used exercise resistance bands. Clancy has pleaded not guilty, and defense attorney Kevin Reddington is arguing insanity, pointing to severe postpartum psychosis compounded by psychiatric overmedication.

Wednesday belonged to the defense's clinical psychologist, Dr. Paul Zeizel, continuing testimony he began earlier in the week. His account painted a picture of a woman drowning in intrusive thoughts — thoughts she believed others could somehow hear, thoughts that convinced her she'd lose her children if anyone found out. She reached out for help twice in December, calling a suicide hotline, and was told she didn't meet the standard for intervention because she didn't have a specific plan. Zeizel's testimony framed intrusive thoughts as relentless — not something that fades with a good night's sleep — and said that by January, Clancy's had turned toward telling her to end her own life. He also addressed something juries often get wrong about mental illness: that functioning normally on the outside doesn't rule out psychosis on the inside. His testing, he said, ruled out psychopathy entirely, but turned up bipolar disorder with postpartum psychosis, and in his opinion, no awareness at the time that what she was doing was wrong.

Patrick Clancy, her husband, was running errands when it happened and now lives in Manhattan. The trial continues in Plymouth Superior Court and is expected to stretch several weeks.

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