Luigi Mangione claimed he was homeless and used a fake ID of "Mark Rosario" when arrested for UnitedHealthcare CEO Brian Thompson's assassination, according to court testimony.

Police officer testifies in Luigi Mangione evidence suppression hearing, describing recognition of suspected CEO assassin at McDonald's in Altoona.

Accused assassin Luigi Mangione faces murder trial as court weighs admissibility of backpack evidence and police statements in the high-profile case.