A Myrtle Beach tourist streamed a terrifying shooting on Facebook Live from a balcony — “Multiple people down!”

Warning: this video is graphic. When volunteer firefighter Bubba Hinson decided to visit the popular tourist destination Myrtle Beach, S.C., we’re guessing the last thing he expected was to be live cameraman of a mass shooting. Watch the video RELATED: One New York party girl forgot to take the crystal meth out of her Facebook Live…