People scramble for cover after gunfire was heard at the Route 91 Harvest country music festival grounds on Oct. 1 in Las Vegas.
A lone gunman opened fire from the 32nd floor of the Mandalay Bay hotel in the worst mass shooting in modern American history.
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A pair of cowboy boots lies in the street outside the concert venue.
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People run from the scene after gunfire was heard.
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A police officer takes cover behind a police vehicle during the shooting.
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Las Vegas Metropolitan Police and medical workers stand in the intersection of Tropicana Avenue and Las Vegas Boulevard South after the shooting.
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Concertogers run for cover.
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A woman sits on a curb at the scene of the shooting.
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A woman pushes a man in a wheelchair away from the scene.
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Las Vegas police stand guard outside the festival grounds.
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