A judge has ruled that a gun and a notebook, which prosecutors argue connect Luigi Mangione to the murder of UnitedHealthcare CEO Brian Thompson, can be admitted as evidence in his state murder trial. The decision, handed down on Monday by Judge Gregory Carro, represents a significant victory for the prosecution, allowing them to present the jury with a potential murder weapon and materials they claim reveal motive.
Ruling Details
Judge Carro’s ruling came five months after a hearing examining how police obtained the items. The judge determined that evidence found during an initial search of Mangione’s backpack at the time of his arrest at a McDonald’s restaurant must be suppressed. This includes a gun ammunition magazine, cellphone, passport, wallet, and computer chip. However, the gun and notebook, discovered later, were deemed admissible.
The ruling mirrors an earlier decision in Mangione’s federal case. Mangione, 28, has pleaded not guilty in both state and federal proceedings. He faces the possibility of life imprisonment if convicted in either case.
Trial Schedule
Mangione’s state murder trial is scheduled to begin on September 8. Jury selection for his federal trial, which involves stalking charges, is set for October 13, with opening statements and testimony starting on November 4. The state trial is expected to last four to six weeks.
Background of the Case
Police discovered the gun, notebook, and other items in Mangione’s backpack after he was spotted eating breakfast at a McDonald’s in Altoona, Pennsylvania, on December 9, 2024. This occurred five days after Thompson was killed outside a Manhattan hotel. Altoona is approximately 230 miles west of Manhattan.
The gun, a 3D-printed pistol, matches the weapon used to kill Thompson, according to prosecutors. The notebook, which they have described as a “manifesto,” contains writings expressing a desire to “wack” a health insurance executive and rebel against “the deadly, greed fueled health insurance cartel.”
Legal Arguments
Mangione’s lawyers argued that the search was illegal and that the items should be excluded from trial because police searched the backpack without a warrant. Prosecutors countered that the search was lawful, conducted in conjunction with an arrest and in accordance with Altoona police protocols requiring checks for dangerous items. A warrant was eventually obtained, they said.
Surveillance video shows a masked gunman shooting Thompson from behind on December 4, 2024, as he walked to his company’s annual investor conference at the New York Hilton Midtown. Police noted that the words “delay,” “deny,” and “depose” were inscribed on the ammunition, echoing a phrase used to describe how insurers avoid paying claims.
Hearing Testimony
During a three-week hearing in December, Altoona police officers detailed Mangione’s arrest and the search of his backpack. Prosecutors played body-worn camera footage of the arrest in court for the first time, and some clips were made public. Judge Carro had stated he would review the footage before issuing his decision.
According to testimony and video, officers began searching the bag at McDonald’s but stopped after finding a loaded gun magazine wrapped in underwear. This discovery confirmed their suspicions that Mangione was the wanted suspect. “It’s him, dude. It’s him, 100%,” Officer Stephen Fox said on video, using expletives as Officer Christy Wasser held up the magazine.
Officers continued the search at a police station, where they found the gun and silencer. They performed an inventory search, cataloging all seized property, and discovered the notebook and other notes, including apparent to-do lists and possible getaway plans. This inventory search is required under Altoona police policy, prosecutors said. The judicial warrant was obtained hours later.
Laws concerning police search warrants are complex and often disputed in criminal cases. Prosecutors have quoted extensively from Mangione’s handwritten diary in court filings, including his praise for Unabomber Ted Kaczynski.



