WATCH: Chilling New Video Emerges Showing Terror as Gunman Opens Fire at Vegas Concert


More dramatic mobile phone video is emerging of the terrifying moments when a gunman in the Mandalay Bay Hotel unleashed a hail of gunfire on a crowd enjoying a country music festival in Las Vegas, killing 59 and injuring more than 500 Sunday. (Oct. 3)

[MORE VIDEO: GRAPHIC CONTENT: Chaos as gunman goes on deadly rampage at Las Vegas concert]

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