October 1, 2017:

“A gunman opened fire on a crowd of 22,000 concertgoers at the Route 91 Harvest music festival on the Las Vegas Strip in Nevada, leaving 58 people dead and 546 injured. Between 10:05 and 10:15 p.m. PDT, 64-year-old Stephen Paddock of Mesquite, Nevada, fired hundreds of rifle rounds from his suite on the 32nd floor of the nearby Mandalay Bay hotel. About an hour after Paddock fired his last shot into the crowd, he was found dead in his room from a self-inflicted gunshot wound. His motive is unknown.” — Wikipedia

Related Resources:

• FEMA 1 October After-Action Report
• LVMPD Preliminary Investigative Report: 1 October/Mass Casualty Shooting
• LVMPD Criminal Investigative Report of the 1 October Mass Casualty Shooting, LVMPD Event Number 171001 – 3519
• Exploitation of the Las Vegas Shooting to Promote Islamic State Propaganda on Social Media
• Best Practices in Anti-Terrorism Security for Sporting and Entertainment Venues, Resource Guide
• Changing Homeland Security: A Strategic Logic of Special Event Security
• Gun Control: “Bump-Fire” Stocks
• HSDL In Focus: Active Shooters; Mass Gatherings
• HSDL search results for Mass Shootings and Gun Policy

Photo: Route 91 Harvest Festival shooting site. Image taken September 22, 2017 shows final preparations for the festival. [Credit: Mariordo (Mario Roberto Durán Ortiz) (Own work) [CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0)], via Wikimedia Commons]