Las Vegas police released body camera footage from the deadliest mass shooting in modern U.S. history that unfolded on Oct. 1, 2017 during a country music concert.

At least 59 people were killed and 527 hospitalized at a country music festival in Las Vegas -- what is now considered the deadliest mass shooting in U.S. history.

1:32 a.m. PT - Las Vegas sheriff says officers killed gunman on 32nd floor of Mandalay Bay Hotel and Casino 1:34 a.m. PT - Death toll jumps. Las Vegas sheriff says at least 20 people dead, 100 injured ...

Stars react to the Las Vegas mass shooting as a new hashtag trends on Twitter. — -- A growing chorus of celebrities are joining country music stars in "praying for Vegas" after Sunday's ...

3:30 a.m. PT - Las Vegas sheriff says at least 50 dead, more than 200 injured in attack 8:00 a.m. PT - President Trump holds press conference to address shooting. Calls it 'an act of pure evil.' ...