Number of bullets Vegas gunman, Stephen Paddock fired revealed

Credit: Ethan Miller

Credit: Ethan Miller

The top lawman in Las Vegas says the gunman who killed dozens of people at a concert last month fired more than 1,100 rounds.

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The newly released estimate from Sheriff Joe Lombardo offers more detail about the deadliest mass shooting in modern U.S. history.

Lombardo tells the Las Vegas Review-Journal he was aware of the previously unreported figure because his department's forensics lab is working with the FBI to process all ballistics evidence.

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