Records: FBI knew Las Vegas gunman had big gun stashes

Records: FBI knew Las Vegas gunman had big gun stashes

Interested in Las Vegas Shooting?Add Las Vegas Shooting as an interest to stay up to date on the latest Las Vegas Shooting news, video, and analysis from ABC News.Las Vegas ShootingAdd InterestFBI agents knew the gunman behind the deadliest mass shooting in modern U.S. history left behind big caches of guns, ammunition and explosives when they sought warrants to search his properties and online accounts, according to court documents released Friday.However, new questions were raised after a U...