The man accused of gunning down United Healthcare’s CEO outside a Manhattan hotel is now jailed in New York, awaiting arraignment Monday on a state murder indictment after he was returned to the city in dramatic fashion to face charges in multiple courts. Shackled and wearing an orange prison jumpsuit, 26-year-old Luigi Mangione was escorted Thursday by heavily armed police officers and whisked by air from Pennsylvania to Manhattan, where he appeared in a packed courtroom on federal charges that could bring the death penalty.