He was rich, he was smart, and he had no apparent motive. This is the story of the Stephen Paddock, the man who is believed to have committed the Las Vegas Massacre: the worst mass shooting by a single person in American history. In this book we'll explore the circumstances leading up to the crime, the location, the shooter's preparations, his arsenal, and his possible motive. Then we'll discuss the casualties, the aftermath and some of the theories surrounding the massacre and the man behind it.