Luigi Mangione appeared in Manhattan Criminal Court, charged with the murder of Brian Thompson, CEO of UnitedHealthcare, which sparked national debate over political violence and healthcare.Prior to his arrest, Mangione was found carrying the murder weapon, forged IDs, a knife, and a red notebook prosecutors described as a "manifesto" attacking the American healthcare system.Attorney General Pamela Bondi condemned the assassination, while Mangione pleaded not guilty, and supporters and critics continue to clash over the ethical and legal consequences of the case.