Moments following the arrest of Luigi Mangione at a McDonald’s in Pennsylvania, a police officer discovered a loaded gun magazine wrapped in underwear inside his backpack. This discovery led police in Altoona to believe that Mangione was the suspect wanted for the murder of UnitedHealthcare CEO Brian Thompson in Manhattan.
During a court session on Monday, details of the finding were presented as part of Mangione’s effort to prevent the use of evidence in his murder case. The officer handling the search, Christy Wasser, was captured on body-worn camera confirming Mangione’s identity with explicit language upon finding the magazine.
Wasser, a seasoned Altoona police officer, testified that standard procedures required a thorough search of a suspect’s belongings at the time of arrest to ensure safety. Despite concerns about potential dangers, such as bombs, she admitted that the McDonald’s location was not evacuated before the search.
Mangione, aged 27, has pleaded not guilty to both state and federal murder charges. His legal team is contesting the admissibility of the evidence in both cases, particularly the handgun, magazine, and notebook found during the police search.
Prosecutors argue that the handgun matches the weapon used in Thompson’s killing and that the writings in the notebook reveal Mangione’s hostility towards health insurers and his contemplation of targeting a CEO at a conference. Thompson was fatally shot on his way to a hotel for an investor conference, with surveillance footage showing the masked assailant firing at him from behind.
Mangione’s arrest in Altoona, located hundreds of kilometers away from Manhattan, was prompted by a tip from a McDonald’s patron who thought he resembled the wanted suspect. Wasser, the testifying officer, mentioned being aware of the case before responding to the call at the fast-food chain.
The search of Mangione’s bag, conducted without a warrant, led to the discovery of incriminating items including the gun, silencer, and a notebook containing concerning writings. The subsequent issuance of a search warrant by a judge legalized the evidence collection process for the ongoing investigation.
As the legal proceedings continue, prosecutors maintain the seriousness of the case, labeling Thompson’s killing as an “execution” and referring to the notebook as a “manifesto.” The judge overseeing the case cautioned against using prejudicial language during trial proceedings to ensure a fair trial for Mangione.

