Police identified 64-year-old Stephen Paddock as the perpetrator of the mass shooting in Las Vegas, that killed at least 50 people, and injured over 400 others. Here is everything we know about him so far. Paddock lived in a retirement village in Mesquite, Nevada, since June 2016. He checked-in at the Mandalay Bay hotel on Sept. 28. A total of 10 guns, including rifles, were recovered from his room in the 32nd floor. According to Las Vegas Police, Paddock killed himself after the attack. Police said Paddock had no known connection to terrorism, and described him as a "lone wolf." Eric Paddock, the gunman's brother, said.