A New York judge has decided that prosecutors may introduce a firearm and a notebook found in Luigi Mangione’s possession during his state murder trial for the killing of UnitedHealthcare CEO Brian Thompson. Judge Gregory Carro ruled on Monday that the gun and the red journal, discovered during a later search at a police station, are admissible, while several other items seized from Mangione’s backpack at a Pennsylvania McDonald’s must be excluded.

The suppressed evidence includes a loaded magazine, a cellphone, a passport, a wallet and a computer chip, which the judge determined were obtained through an improper, warrantless search. Carro also barred statements Mangione made to officers before he was read his Miranda rights at approximately 9:48 a.m., including answers about giving a false name and possessing a fake ID. Questioning that occurred after he was taken into custody and received his Miranda warnings may still be used at trial.

Mangione, who was arrested in Altoona, Pennsylvania days after the December 2024 shooting in Manhattan, faces state charges of second‑degree murder, multiple firearms offenses and stalking. He has pleaded not guilty to those counts and is also confronting a separate federal case in which he has likewise entered a not‑guilty plea. The judge’s decision leaves the prosecution with two key pieces of evidence—the alleged murder weapon and Mangione’s writings—while the defense succeeded in keeping a number of other items out of the jury’s view.

The state trial is slated to begin in September. Mangione appeared in court for the hearing wearing a navy‑blue suit and conferring with his lead attorneys, Karen Friedman Agnifilo and Marc Agnifilo, as supporters filled the courtroom benches.