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Expert: Clancy killings may be altruistic filicide
25 Aug
Summary
- Psychologist diagnosed Clancy with Bipolar II disorder.
- Clancy allegedly believed children needed saving from her death.
- Religion mention caused mistrial motion, denied by judge.
In Plymouth, Massachusetts, a forensic psychologist, Dr. Kirk Heilbrun, testified on August 24, 2026, regarding Lindsay Clancy's mental state. Heilbrun diagnosed Clancy with Bipolar II disorder, noting she experienced depressive episodes but not manic ones. He suggested the killings of her three children might have stemmed from a belief that they would suffer if she died.
Heilbrun presented "altruistic filicide" as a potential motive, where Clancy may have acted to spare her children from future suffering. He also discussed Clancy's statement to her husband after the incident, which he found inconsistent with psychosis. The defense argues postpartum psychosis is central to the case.
A mistrial was motioned after the witness mentioned Clancy's Catholic faith, deeming it irrelevant. The judge denied the motion and instructed the jury to disregard the comment, emphasizing that religion was an inappropriate area of testimony. Heilbrun is expected to continue his testimony.
