Vegas body camera footage

This photo from police officer video body camera footage on Oct. 1, 2017, provided by the Las Vegas Metropolitan Police Department, shows officers deploying a shield and weapons during the deadliest mass shooting in modern U.S. history by Stephen Paddock, at the Mandalay Bay Hotel in Las Vegas, released Wednesday, May 2, 2018.

This photo from police officer video body camera footage on Oct. 1, 2017, provided by the Las Vegas Metropolitan Police Department, shows officers going up a stairway during the deadliest mass shooting in modern U.S. history by Stephen Paddock, at the Mandalay Bay Hotel in Las Vegas, released Wednesday, May 2, 2018.

This photo from police officer video body camera footage on Oct. 1, 2017, provided by the Las Vegas Metropolitan Police Department, shows officers searching hallways during the deadliest mass shooting in modern U.S. history by Stephen Paddock, at the Mandalay Bay Hotel in Las Vegas, released Wednesday, May 2, 2018.

This photo from police officer video body camera footage on Oct. 1, 2017, provided by the Las Vegas Metropolitan Police Department, shows officers as they breach the shooter’s room during the deadliest mass shooting in modern U.S. history by Stephen Paddock, at the Mandalay Bay Hotel in Las Vegas, released Wednesday, May 2, 2018.

This photo from an Oct. 1, 2017, police officer body camera video provided Wednesday, May 2, 2018, by the Las Vegas Metropolitan Police Department shows an officer carrying an assault rifle past a broken-open window after the deadliest mass shooting in modern U.S. history by Stephen Paddock, at the Mandalay Bay Hotel in Las Vegas.