Luigi Mangione, facing charges for the 2024 murder of United Healthcare CEO Brian Thompson, has seen his defense strategy take a notable turn. His legal team has reversed its initial plan to assert he was undergoing a mental health crisis at the time of the incident. This change was outlined in a letter to Justice Gregory Carro of the Supreme Court of the State of New York, where Mangione entered a plea of not guilty.
This legal maneuver involved withdrawing the notice to present psychiatric evidence under New York’s Criminal Procedure Law §250.10, which had been filed in September 2025. Indications were that Mangione’s defense was poised to argue “extreme emotional disturbance,” a defense that might have reduced charges from second-degree murder, carrying a potential life sentence, to first-degree manslaughter, which has a maximum penalty of 25 years. The defense intended to demonstrate Mangione’s acute distress, rooted in his experiences with the health care system, as a factor in the alleged shooting.
At a recent pretrial hearing, Mangione’s attorney, Karen Friedman Agnifilo, sought to keep psychiatric records sealed, citing concerns that the defense was not applicable federally and disclosure could prejudice concurrent federal proceedings. Furthermore, invoking this defense would have necessitated Mangione’s admission to the act itself. Facing these complexities, the defense chose to retract the §250.10 notice, avoiding the disclosure of sensitive psychiatric records and expert information. As a result, Justice Carro ordered that all related transcripts and documents remain sealed.
While no explicit explanation for the strategic shift has been provided, legal analysts have offered interpretations of the decision. Richard Schoenstein commented that the move circumvents imminent discovery deadlines but does not completely rule out a possible revival of the argument in the future. According to former prosecutor Gary Galperin, the decision might stem from a reassessment of the defense’s strength or potentially a change of heart by Mangione’s mental-health expert.
The legal defense for Mangione thus remains fluid, with the possibility of revisiting the psychiatric strategy as his trial approaches. This situation underscores the challenging dynamics of high-stakes criminal defense. Further details can be found in the initial report.