New details about 2017 Las Vegas mass shooter revealed in hundreds of of FBI documents

A cache of newly released FBI documents reveals Stephen Paddock, the gambler who carried out the deadliest mass shooting in modern US history in Las Vegas in 2017, may have harbored resentment over how he and other high rollers were treated by casinos.A cache of newly released FBI documents reveals Stephen Paddock, the gambler who carried out the deadliest mass shooting in modern US history in Las Vegas in 2017, may have harbored resentment over how he and other high rollers were treated by casinos.