Luigi Mangione's pretrial hearing is over. Here's what we learned about his UnitedHealthcare murder case

"A 911 call about a man resembling "the CEO shooter." Body-camera footage of police arresting Luigi Mangione and pulling items from his backpack, including a gun that prosecutors say matches the one used to kill UnitedHealthcare CEO Brian Thompson, and a notebook they have described as a "manifesto." Notes about a "survival kit" and "intel checkin," and testimony about alleged statements behind bars."

"A three-week pretrial hearing on Mangione's fight to exclude evidence from his New York murder case ended Thursday after revealing new details about his December 2024 arrest in Altoona, Pennsylvania, steps prosecutors say he took to elude authorities for five days, and what he may have revealed about himself after he was taken into custody. Mangione watched from the defense table as Manhattan prosecutors called 17 witnesses, many of them police officers and other personnel involved in his arrest."

"Mangione's lawyers noted that one officer said "we'll probably need a search warrant" for the backpack, but his colleagues had already rifled through it and later searched the bag again before getting a warrant. Prosecutors emphasized an Altoona police policy, which they said is rooted in Pennsylvania law, that calls for searching the property of anyone who is being arrested."

Authorities presented body-camera footage and witness testimony during a three-week pretrial hearing about Luigi Mangione's December 2024 arrest in Altoona, Pennsylvania. Police removed a gun prosecutors say matches the one used to kill UnitedHealthcare CEO Brian Thompson and a notebook described as a "manifesto" that contained notes about a "survival kit" and "intel checkin." Prosecutors said Mangione took steps to elude authorities for five days. Manhattan prosecutors called 17 witnesses while Mangione observed from the defense table. Defense attorneys seek to exclude evidence in state and federal cases. Officers' accounts conflicted over when the backpack was searched and whether a warrant was needed. Judge Gregory Carro deferred a ruling until May 18.

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