las vegas shooting
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58 Dead, More Than 527 Injured in Mass Shooting at Las Vegas Country Music Festival

In what is now the deadliest mass shooting in U.S. history, a gunman killed at least 58 people and injured more than 527 at the Route 91 Festival in Las Vegas on Sunday night.

Shortly after 10 p.m., the gunman opened fire on the crowd of nearly 30,000 from his room on the 32nd floor of the nearby Mandalay Bay Hotel. Eyewitnesses say the shooting lasted for 10-15 minutes. The Route 91 Harvest festival took place on a 15-acre plot on the Las Vegas Boulevard across from the Mandalay Bay.

Jason Aldean was performing the last show of the night when the shooting began. Aldean confirmed on social media that he and his crew were uninjured in the attack.

This video shows the moment the attack unfolded during Aldean's set.

Police have identified the shooter as Stephen Paddock, 64. He was found dead by police in his hotel room at the Mandalay Bay hotel. According to CBSDFW.com, police found at least 10 rifles in Paddock's room. He broke the windows of his room to get a shooting position. Police do not yet know his motivation for the attack, but said that he was a solo shooter.

Paddock was a resident of Mesquite, Nev. CBSDFW reports that he had previously lived in Mesquite, Texas and Grand Prairie, Texas.

Authorities were searching for Paddock's roommate Marilou Danley for questioning, but she has since been located out of the country. She is returning to the U.S. for questioning.

This story is developing, and we will continue to update you with more info as we learn more.