Luigi Mangione’s Legal Team Drops Psychiatric Defence in Brian Thompson Murder Trial

Lawyers representing Luigi Mangione, 28, have reversed their decision to argue a psychiatric defence at his state murder trial. Mr Mangione is accused of the fatal shooting of UnitedHealthcare Chief Executive Brian Thompson in midtown Manhattan in December 2024.

The defence team had previously informed Judge Gregory Carro of their intent to demonstrate that Mr Mangione was experiencing "extreme emotional disturbance at the time of the occurrence." This change in strategy occurred just a day after that initial notification.

This reversal took place ahead of a Thursday deadline for Mr Mangione's legal team to provide evidence supporting their psychiatric defence claim to prosecutors at the Manhattan district attorney's office. Had the psychiatric defence been successful, it could have potentially led to a conviction for manslaughter rather than murder, resulting in a reduced prison sentence.

Legal experts note that a psychiatric defence generally implies an admission to the killing under mitigating circumstances, distinct from a plea of not guilty by reason of insanity, which typically seeks exoneration and placement in a psychiatric facility. Mr Mangione has entered a plea of not guilty in both the federal and state cases against him.

Mr Mangione also faces federal stalking charges, which carry a potential life sentence. His next court appearance is scheduled for 11 August, with the state trial set to commence on 8 September.

Brian Thompson, 50, was shot from behind by a masked assailant on 4 December 2024, as he entered a Manhattan hotel for an investor conference.