Nightclub Shooting Florida

Donors line up outside OneBlood Blood Donation Center in Orlando, Fla., on Sunday, June 12, 2016. The center was flooded with donors after a mass shooting early Sunday morning at a gay nightclub, Pulse, in Orlando. A gunman wielding an assault-type rifle and a handgun opened fire inside the nightclub early Sunday, killing at least 50 people before dying in a gunfight with SWAT officers, police said. It was the worst mass shooting in American history. (Loren Elliott/Tampa Bay Times via AP)