Suspect in Brian Thompson's murder Luigi Mangione not a client of UnitedHealthcare, says police

Luigi Mangione, suspected of killing UnitedHealthcare CEO Brian Thompson, was arrested in Pennsylvania. Police believe Mangione targeted Thompson due to UnitedHealthcare's size and influence, not a personal connection. Mangione, found with a "ghost gun," awaits extradition to New York on murder charges while resisting extradition. He faces additional charges in Pennsylvania.