Mangione drops mental-health plea as NY murder case collides with federal charges

Luigi Mangione abruptly abandoned a planned psychiatric defense in his New York state murder trial, a move analysts say may be to avoid undermining a parallel federal case. Experts note that admitting guilt in state court could be used against him federally, while the defense’s medical records could become discoverable; alternatively, Mangione may have decided against a mental-health defense altogether. He could still present a limited mental-health argument in state court without expert medical testimony, but the reversal adds strategic complexity to both prosecutions as Mangione has pleaded not guilty in both the state and federal cases over the December 2024 killing of UnitedHealthcare CEO Brian Thompson.