Overview
- Defense lawyers filed a one-sentence court note on Thursday, June 18, 2026, saying they “respectfully withdraw” the CPL § 250.10 notice that would have signaled an extreme emotional disturbance defense.
- The withdrawal came on the deadline to disclose expert names and psychiatric materials to prosecutors and led Judge Gregory Carro to keep transcripts, emails and documents about the defense under seal.
- Under New York law the EED defense requires a defendant to show by a preponderance of evidence a profound loss of self-control and would, if accepted, reduce a murder conviction to first‑degree manslaughter with a top term near 25 years.
- Prosecutors say evidence of planning undercuts a loss-of-control claim, pointing to a 3D-printed gun, diary entries describing targeting the CEO and forensic links that they say show premeditation.
- Mangione remains charged in state and federal cases with a state trial set for Sept. 8 and separate federal proceedings to follow, and legal observers say abandoning the state psychiatric notice likely reflects concern that a state-level admission could be used in the federal case.