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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Braves first baseman Matt Olson (left) is greeted by Ronald Acuña Jr. after batting during the MLB Home Run Derby as part of the All-Star Game festivities on Monday, July 14, 2025, at Truist Park in Atlanta. (Jason Getz/AJC)

Credit: Jason Getz/AJC