A lone gunman fired more than 1,000 rounds of ammunition from his hotel suite on a crowd attending the Route 91 Harvest music festival on the Las Vegas Strip, resulting in 60 deaths and 867 injuries. Stephen Paddock: Stephen Craig Paddock was an American mass murderer who perpetrated the 2017 Las Vegas shooting, the deadliest mass shooting and one of the worst mass murders in American history. October 1, 2017. Wiki link