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'It Just Didn't Stop': Witnesses Describe Las Vegas Shooting

A witness to the Las Vegas massacre says it was a scene of "pure chaos and carnage," but it was amazing to see police officers and other first responders risk their own lives to help victims.

"In a world where everyone's kneeling, I saw hundreds of people standing up and running towards the danger," Russell Bleck said on "Happening Now."

Bleck said he saw people with medical or military backgrounds rushing to administer aid, including plugging others' bullet wounds with their fingers and using their bodies to shield people.

At least 58 people were killed and more than 515 others were injured when a gunman opened fire on an outdoor music festival in Las Vegas on Sunday night.

The suspect, who has been identified as 64-year-old Stephen Paddock, reportedly committed suicide as authorities breached his hotel room on the 32nd story of the Mandalay Bay Resort and Casino.

Bleck, who was in the VIP tent near the stage at the Route 91 Harvest Festival when Paddock began firing into the crowd of 22,000, said it was total chaos as people scrambled for cover.

"If you fire a round into that crowd, you're going to hit somebody," he said. "There was no escape. ... It was horrible."

Watch more above.

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