Luigi Mangione was arrested Monday in Altoona, Pennsylvania, in connection with the killing of UnitedHealthcare CEO Brian Thompson in what law enforcement has called a "targeted attack." Mangione is from a prominent Maryland family with extensive business interests. The Mangione family is known for developing real estate and running businesses. Relatives expressed shock over the arrest and offered condolences to Thompson’s family. Mangione faces multiple charges, including murder, firearm possession, and forgery, in New York and Pennsylvania.