Luigi Mangione on Dec. 19 agreed to be extradited to New York City to face murder charges in the brazen execution of UnitedHealthcare CEO Brian Thompson — following a court hearing in Pennsylvania where at least 100 protesters showed up to support the accused killer. Mangione, 26, is expected to land later in Manhattan, where he faces an 11-count indictment levied against him by state prosecutors in the Dec. 4 fatal shooting on Thompson outside the Hilton in Midtown.