Who is Luigi Mangione, 26-year-old arrested for killing UnitedHealthCare CEO?

Luigi Mangione, the 26-year-old arrested and charged with murder of UnitedHealthCare CEO Brian Thompson, studied computer science at prestigious University of Pennsylvania and was valedictorian at elite Gilman School. Luigi comes from a wealthy Maryland family that owns several country clubs and real estate firms. He reportedly stopped communicating with friends and family six months ago.