A state judge has ruled that a gun and notebook prosecutors say link Luigi Mangione to the killing of UnitedHealthcare CEO Brian Thompson can be used as evidence at his murder trial, rejecting defense arguments that the items were seized illegally. The decision by Judge Gregory Carro marks a significant win for Manhattan prosecutors pursuing a case that drew national attention following Thompson's death outside a Manhattan hotel on December 4, 2024.
Mangione was arrested five days later at a McDonald's in Altoona, Pennsylvania, about 230 miles west of Manhattan. His state trial is scheduled to begin September 8, while his federal trial on related stalking charges is set for October 13. Mangione has pleaded not guilty to all charges and could face life in prison if convicted.
What the Left Is Saying
Civil liberties advocates see constitutional implications in how police handled Mangione's arrest. The judge excluded items found during what he called an improper warrantless search at the McDonald's, including a loaded gun magazine, cellphone, passport, wallet and computer chip. Carro ruled that officers had eliminated justification for an immediate safety search by moving the backpack outside Mangione's reach as other customers passed by.
Defense attorneys have argued the searches violated Fourth Amendment protections against unreasonable seizures. The judge also excluded some statements Mangione made before being informed of his right to remain silent, noting body-worn camera footage showed officers engaged him for nearly 20 minutes after he said he did not want to talk. Public defenders and legal observers argue such cases test how strictly law enforcement must follow warrant requirements, particularly in high-profile arrests that draw intense media attention.
What the Right Is Saying
Prosecutors welcomed Carro's decision allowing the 3D-printed pistol they say matches the weapon used to kill Thompson, along with a notebook containing writings about wanting to 'wack' a health insurance executive. The ruling mirrors an earlier decision in federal court admitting all backpack contents as evidence.
Supporters of the prosecution note that police followed proper protocol by conducting an inventory search at the station after stopping their initial examination. Carro determined such inventory searches are an exception to constitutional protections. Officers testified they paused the McDonald's search upon finding a gun magazine wrapped in underwear, with one officer saying on body camera: 'It's him, dude. It's him, 100%.' Manhattan District Attorney Alvin Bragg's office has quoted Mangione's diary extensively in filings, noting his praise for Unabomber Ted Kaczynski and references to rebelling against the health insurance industry.
What the Numbers Show
Mangione is charged with murder under New York state law and face separate federal stalking charges. The state case goes to trial September 8; the federal case begins October 13. If convicted on the top state charge, he could receive a sentence of 25 years to life without parole. About two dozen supporters attended Monday's hearing wearing 'Free Luigi' shirts.
Surveillance footage showed Thompson shot from behind as he walked to his company's annual investor conference. Police say ammunition found at the scene bore the words 'delay,' 'deny' and 'depose,' phrases commonly used to describe insurer claims practices. Officers testified that Mangione initially gave police a fake name matching one used to purchase a bus ticket to New York and reserve a Manhattan hostel.
The Bottom Line
The ruling substantially advances the prosecution's case by allowing jurors to consider physical evidence connecting Mangione to Thompson's killing, along with writings that prosecutors say show motive. Defense attorneys retain options including appeal of suppression decisions and challenges to how police obtained other evidence. Both trials will test whether constitutional protections around search and seizure procedures were followed in a case where officers knew they had arrested a suspect in a high-profile murder. What happens next: Jury selection for the state trial is set to begin next month, with pre-trial motions continuing in both cases.