Luigi Mangione makes first court appearance in New York amid new federal charges

Alleged UnitedHealthcare CEO killer Luigi Mangione on Thursday appeared in a New York court for the first time, amid new federal charges that include murder and stalking allegations. 

Mangione has already been charged by the state of New York with one count of first degree murder, two counts of second-degree murder, and a litany of gun possession charges. He is suspected of fatally shooting former UnitedHealthcare CEO Brian Thompson on Dec. 4.

The defendant was previously detained in Pennsylvania, where he was arrested after a five-day manhunt. 

Mangione on Thursday appeared in front of U.S. Magistrate Judge Katharine Parker, and confirmed that he was aware of his rights as the defendant and that he was given a copy of the federal complaint, according to the Associated Press. He is also not expected to request bail, and will remain detained in New York pending the trial.

The federal complaint included alleged writings from his notebook that prosecutors claimed showed “hostility towards the health insurance industry and wealthy executives in particular.”

Prosecutors also claimed, based on the suspect's alleged writings, that Mangione's target was the insurance business in general, and more specifically a CEO at an investor conference.

“This investor conference is a true windfall ... and — most importantly — the message becomes self evident,” a notebook entry from October read.

Mangione faces up to life in prison without parole for the state charges, and a possible death sentence for the federal charges, but prosecutors have not indicated whether they would seek the death sentence so far. He is expected to plead not guilty.

Misty Severi is an evening news reporter for Just The News. You can follow her on X for more coverage.