Judge allows gun, notebook evidence in Luigi Mangione New York murder trial

(WBFF) — A New York judge has cleared prosecutors to use two key items allegedly found in Baltimore native Luigi Mangione’s backpack as evidence in his upcoming murder trial: a gun and a notebook.

Judge Gregory Carro ruled Monday that the gun and notebook can be admitted in court, a decision some local legal observers described as a significant boost for the prosecution. “It’s absolutely a win for the prosecution,” said Brandon Mead, a defense attorney and legal analyst who is not associated with Mangione’s case.

Mead said the firearm itself could be especially important for prosecutors. “You’re talking about a firearm, not just any type of firearm, it is a 3D printed firearm, which goes to show the thought process so to speak. You’re not going out and purchasing a firearm, it’s untraceable,” Mead said.

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Mead also pointed to the notebook as potentially powerful evidence. “Additionally, you’re talking about a manifesto of sorts in this notebook that was recovered that lays out Mr. Mangione’s decision process, his thought process. Why he’s doing or allegedly doing what he allegedly did,” he said.

Mangione faces trial in September on second-degree murder and other charges in the death of UnitedHealthcare CEO Brian Thompson, who was gunned down in December 2024. Mangione was arrested at a McDonald’s in Altoona, Pennsylvania, days after Thompson was killed.

Carro ruled that while the gun and notebook will be allowed as evidence, other items found will not be admitted, including a loaded gun magazine and a cellphone. The judge said those items were unlawfully collected because Mangione was not in custody.

The judge said the gun and notes detailing Mangione’s frustrations with the healthcare industry were found after his arrest during a valid inventory search at the police station.

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The case has drawn widespread attention, and local defense attorney Kurt Nachtman, who is also not connected with the Mangione case, said he believes the public interest is tied to people’s experiences with health insurance. “Because everyone in this country has had, whether you’re rich or poor, but particularly if you’re poor, has had their own battles with health insurance,” Nachtman said.

Nachtman also said Mangione’s background has added to the fascination. “I think it’s an interesting story. He’s young, he’s a good looking kid. He’s smart and comes from a good family,” he said.

Mangione has pleaded not guilty. If convicted in the state case, he could face 25 years to life.

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