Categories Articles Here’s what we know about Stephen Paddock, the man behind the worst mass shooting in US history Post author By crystalg Post date October 2, 2017 Business Insider Feedburner Tags About, Behind, Here's, History, Know, Mass, Paddock, Shooting, Stephen, worst ← Rent? Buy? How Each Generation Today Prefers to Live. → The Story Behind the Most Haunting Photos From the Las Vegas Shooting