At least 58 people were killed and more than 500 were injured after a man opened fire on a country music festival in Las Vegas on Sunday in what appears to be the worst mass shooting in modern U.S. history.
Police say Stephen Paddock, a 64-year-old man from Mesquite, Nevada, opened fire on the Route 91 Harvest Festival from the 32nd floor of the nearby Mandalay Bay hotel and casino. A SWAT team later found Paddock dead in a hotel room.
Police have also located a woman named Marilou Danley who was believed to be Paddock’s companion. Authorities do not believe Danley was involved in the shooting.
A motive for Paddock’s mass shooting is not yet known. ISIS on Monday claimed responsibility for the assault, but the group offered no evidence to back itself up. The FBI has since denied that Paddock had any connection to ISIS.