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Judge Denies Mistrial in Clancy Insanity Trial

8/25/2026

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Summary

Story summary

U.S. District Judge William Sullivan denied the defense’s motion for a mistrial.
Lindsay Clancy, 36, admitted killing her three children in January 2023.
Clancy pleaded not guilty by reason of insanity, citing postpartum psychosis.
Forensic psychiatrist Dr. Avram Mack testified she had no psychosis evidence; a verdict of non-responsibility would lead to hospital commitment.

History

Historical Context

The 2002 Andrea Yates trial, where psychiatrist Dr. Park Dietz testified and a jury found Yates guilty of drowning her five children, sparked national debate over postpartum psychosis and the insanity defense. After her 2006 retrial acquitted her by reason of insanity, courts now scrutinize psychiatric evidence, a standard applied in Judge William Sullivan’s 2023 ruling on Lindsay Clancy’s postpartum-psychosis claim.

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Story summary

U.S. District Judge William Sullivan denied the defense’s motion for a mistrial.
Lindsay Clancy, 36, admitted killing her three children in January 2023.
Clancy pleaded not guilty by reason of insanity, citing postpartum psychosis.
Forensic psychiatrist Dr. Avram Mack testified she had no psychosis evidence; a verdict of non-responsibility would lead to hospital commitment.

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