We now know just how much carnage the Vegas killer tried to inflict

FILE - This undated photo provided by Eric Paddock shows his brother, Las Vegas gunman Stephen Paddock. On Sunday, Oct. 1, 2017, Stephen Paddock opened fire on the Route 91 Harvest Festival killing dozens and wounding hundreds. Authorities trying to piece together the final days before Stephen Paddock unleashed his arsenal of powerful firearms on country music fans on the Las Vegas Strip have at least one potential trove of information: his gambling habits. Gaming regulators say they’re sorting through documents that can include suspicious transaction or currency reports. (Courtesy of Eric Paddock via AP)

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.

In this Monday, Oct. 2, 2017 file photo, drapes billow out of broken windows at the Mandalay Bay resort and casino on the Las Vegas Strip, following a mass shooting at a music festival in Las Vegas.  (AP Photo/John Locher, File)

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.

LAS VEGAS, NV – OCTOBER 01: People scramble for shelter at the Route 91 Harvest country music festival after gun fire was heard on October 1, 2017 in Las Vegas, Nevada.  (Photo by David Becker/Getty Images)

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