Luigi Mangione, the suspect in the fatal shooting of UnitedHealthcare CEO Brian Thompson on a busy sidewalk in Midtown Manhattan, was escorted into a New York courtroom Monday where he pleaded not guilty to state murder and terror charges. The hearing marked Mangione’s first opportunity to formally address the accusations brought by the Manhattan District Attorney’s Office. The 26-year-old faces 11 counts in New York, including one of murder in the first degree and two of murder in the second degree, along with other weapon and forgery charges.