He fired more than 1,000 rounds, killing 60 people and wounding at least 413. On October 1, 2017, a mass shooting occurred when 64-year-old Stephen Paddock opened fire on the crowd attending the Route 91 Harvest music festival on the Las Vegas Strip in Nevada from his 32nd-floor suites in the Mandalay Bay hotel. Mass shooting, murder–suicide, mass murderĦ1 (including two victims who died in 20, and the perpetrator)