The Story Behind the Most Haunting Photos From the Las Vegas Shooting

It was nearing the end of the night on Oct. 1 and David Becker, having just photographed the final act of the Route 91 Harvest music festival in Las Vegas, had just walked into the media tent to file his pictures. Becker, who was working for Getty Images, said photographers were only allowed to shoot two songs during the closing act, country star Jason Aldean.

About five to 10 minutes later, he heard popping sounds and went outside.