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Judge allows gun and notebook as evidence at Luigi Mangione’s trial in UnitedHealthcare CEO’s killing

Judge Gregory Carro said prosecutors can show jurors the gun and notebook, giving them evidence they say links Mangione to motive and identity.

  • On Monday, Manhattan Supreme Court Justice Gregory Carro ruled that police conducted an improper warrantless search of Luigi Mangione's backpack at a Pennsylvania McDonald's, yet allowed a 3D-printed pistol and notebook from a later stationhouse inventory as evidence for his state murder trial.
  • Prosecutors allege Mangione fatally shot UnitedHealthcare CEO Brian Thompson on December 4, 2024, outside a Manhattan hotel; police arrested him five days later in Altoona, Pennsylvania, where defense attorneys challenged the initial backpack search as unconstitutional.
  • Carro suppressed a loaded magazine, cellphone, passport, wallet, and computer chip from the initial search, but admitted the 3D-printed pistol and notebook prosecutors term a "manifesto," which describes wanting to "wack" a health insurance executive.
  • Mangione's New York state murder trial remains scheduled for September 8, with a separate federal trial set for later this fall following a federal judge's January ruling that similarly allowed backpack evidence in that case.
  • Supporters calling themselves "The Mangionistas" sparked controversy with remarks about the killing, prompting city officials to reassess press credentialing standards; Mangione remains detained at the Metropolitan Detention Center in Brooklyn, awaiting trial.
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By Nicki Brown and Kara Scannell, CNN. A New York judge ruled Monday that some evidence found in Luigi Mangione's backpack at the time of his arrest will be excluded from his upcoming trial, though other key items, such as a 3D-printed gun and writings expressing frustration with the healthcare industry, will be admitted. While some of Mangione's belongings were excluded from the case, the mixed ruling largely represents a victory for prosecutor…

·Idaho Falls, United States
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Las Vegas Sun broke the news in Las Vegas, United States on Monday, May 18, 2026.
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