Mangione's lawyers reverse course on psychiatric defence in state murder trial

June 19, 2026

Luigi Mangione, the 28-year-old defendant charged with killing UnitedHealthcare CEO Brian Thompson, has abandoned plans to use a psychiatric defense in his state murder trial. His legal team had initially indicated they would argue he experienced extreme emotional disturbance during the shooting, which could have reduced potential murder charges to manslaughter with a lighter sentence. The reversal occurred just before a court-imposed deadline requiring defense attorneys to submit supporting documentation for the psychiatric defense claim to prosecutors.

Who is affected

Luigi Mangione (defendant)
Brian Thompson (victim, deceased UnitedHealthcare CEO)
Thompson's family (described as father of two)
Mangione's legal team
Manhattan district attorney's office prosecutors
Judge Gregory Carro

What action is being taken

Mangione is facing prosecution in both state and federal cases, with his state trial scheduled to begin on September 8th.

Why it matters

The decision to abandon the psychiatric defense significantly impacts Mangione's legal strategy and potential sentencing outcomes. By dropping this defense, Mangione loses the opportunity to potentially reduce his charges from murder to manslaughter, which would have carried a shorter prison sentence. The psychiatric defense would have required him to essentially admit to the killing while arguing mitigating circumstances, making this reversal a major strategic shift in how his defense team plans to approach the case.

What's next

Mangione's next court date is scheduled for August 11th
The state trial is set to begin on September 8th

Read full article from source: BBC