At least 58 were killed and 500 were injured at a shooting at country music fest Route 91 Harvest Music Festival at the Mandalay Bay Resort on the Las Vegas Strip last night (10/1). It is the most deadly mass shooting in modern US history. CNN reports that the suspect is 64-year-old Stephen Paddock, who has been killed. Police tracked down his companion, Marilou Danley, who was at first believed to be a person of interest but police no longer believe so. "LVMPD detectives have made contact with her and do not believe she is involved with the shooting on the strip," the Las Vegas Metropolitan Police Department said.

According to ABC News, the suspect was on the 32nd floor of the Mandalay Bay Hotel and opened fire over the festival. One witness told ABC News that it was "nonstop gunfire" and another, 48-year-old Mike Cronk, said it "kind of sounded like some fireworks going off. I think there was the first kind of volley, and then all of the sudden second volley. My buddy's like, 'I just got hit, you know.' He got hit three times. Then people started diving for the ground. And it just continued."

The suspect's brother, Eric Paddock, told The Orlando Sentinel that he is "completely dumbfounded" about the incident. "We can't understand what happened."

Jason Aldean was performing during the shooting, and he posted on Instagram, "Tonight has been beyond horrific. I still dont know what to say but wanted to let everyone know that Me and my Crew are safe. My Thoughts and prayers go out to everyone involved tonight. It hurts my heart that this would happen to anyone who was just coming out to enjoy what should have been a fun night."

The Route 91 Harvest Music festival, owned by Live Nation and powered by SiriusXM, also featured Eric Church, Sam Hunt, Jake Owen, Maren Morris, Brothers Osborne, Lee Brice, Big & Rich, Kane Brown, Michael Ray, Lauren Alaina, Brett Young, Josh Abott Band, High Valley, Tucker Beathard, Bobby Bones and the Raging Idiots, Dee Jay Silver, Tyler Reeve, Drake White and the Big Fire, Luke Combs, Lanco, Drew Baldridge, Dylan Scott, Bailey Bryan, Jackie Lee, Ashley McBryde, Adam Craig, Smithfield, Walker McGuire, Morgan Wallen, Muscadine Bloodline, Kelleigh Bannen, Dylan Schneider, Midland, and Jordan Mitchell.

ABC 7 reports that Las Vegas residents have been lining up to donate blood this morning. The LVMPD tweeted, "If you would like to donate blood for the injured victims of the Strip shooting visit the Labor Health & Welfare Clinic, 7135 W. Sahara."

President Trump tweeted, "My warmest condolences and sympathies to the victims and families of the terrible Las Vegas shooting. God bless you!"

The resort posted a statement too:

Also see more tweets from other artists on the lineup:

Very disturbing footage of the incident has surfaced as well:

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