According to CBS News, Pulse nightclub bouncer Imran Yousuf, 24, was working early Sunday when shots rang out.

"Everyone froze," Yousuf told CBS News. "I'm here in the back, and I saw people start pouring into the back hallway, and they sardine-pack everyone."

"I'm screaming, 'Open the door! Open the door!' And no one is moving because they are scared," he told CBS News. "There was only one choice: Either we all stay there and we all die, or I could take the chance, and I jumped over to open that latch and we got everyone that we can out of there."

"I wish I could have saved more, to be honest," he said tearfully.