UPDATE: Vegas Shooter Stephen Paddock Dead, Not Believed to Have Connections to a Militant Group

FBI agents confer in front of the Tropicana hotel-casino on Oct. 2, 2017, after a mass shooting during a music festival on the Las Vegas Strip in Las Vegas, Nevada.
FBI agents confer in front of the Tropicana hotel-casino on Oct. 2, 2017, after a mass shooting during a music festival on the Las Vegas Strip in Las Vegas, Nevada. (U.S. REUTERS/Las Vegas Sun/Steve Marcus)

A gunman killed at least 50 people and wounded more than 200 at a country music festival on the Las Vegas Strip on Sunday, raining down rapid fire from the 32nd floor of a hotel for several minutes before he was shot dead by police.

The death toll, which police emphasized was preliminary, would make the attack the deadliest mass shooting in U.S. history, eclipsing last year's massacre of 49 people at an Orlando night club.

Thousands of panicked people fled the scene, in some cases trampling one another as law enforcement officers scrambled to locate and kill the gunman. Shocked concertgoers, some with blood on their clothes, wandered the streets after the attack.

Police identified the gunman as area resident Stephen Paddock, 64, and said they had no information yet about his motive.

He was not believed to be connected to any militant group, Clark County Sheriff Joseph Lombardo told reporters.

"We have no idea what his belief system was," Lombardo said. "We've located numerous firearms within the room that he occupied."

Authorities believed they had located Paddock's roommate, who they identified as Marilou Danley. He gave no details of whether she was suspected of involvement in the attack but described her as an "associate."

Police had located two cars that belonged to the suspect.

The dead included one off-duty police officer, Lombardo said. Two on-duty officers were injured, including one who was in stable condition after surgery and one who sustained minor injuries, Lombardo said. Police warned the death toll may rise.

'Just Kept Going On'

Video taken of the attack showed panicked crowds fleeing as sustained rapid gunfire ripped through the area.

"It sounded like fireworks. People were just dropping to the ground. It just kept going on," said Steve Smith, a 45-year-old visitor from Phoenix, Arizona, who had flown in for the concert. He said the gunfire went on for an extended period of time.

"Probably 100 shots at a time. It would sound like it was reloading and then it would go again," Smith said. "People were shot and trying to get out. A lot of people were shot."

Las Vegas's casinos, nightclubs and shopping draw some 3.5 million visitors from around the world each year and the area was packed with visitors when the shooting broke out shortly after 10 p.m. local time (0400 GMT).

Mike McGarry, a 53-year-old financial adviser from Philadelphia, was at the concert when he heard hundreds of shots ring out.

"It was crazy - I laid on top of the kids. They're 20. I'm 53. I lived a good life," McGarry said. The back of his shirt bore footmarks, after people ran over him in the panicked crowd.

The shooting broke out on the final night of the three-day Route 91 Harvest festival, a sold-out event attended by thousands and featuring top acts such as Eric Church, Sam Hunt and Jason Aldean.

"Tonight has been beyond horrific," Aldean said in a statement on Instagram. "It hurts my heart that this would happen to anyone who was just coming out to enjoy what should have been a fun night."

'We're Horrified'

The suspected shooter's brother, Eric Paddock, said the family was stunned by the news.

"We have no idea. We're horrified. We're bewildered and our condolences go out to the victims," Eric Paddock said in a brief telephone interview, his voice trembling. "We have no idea in the world."

U.S. President Donald Trump offered his condolences to the victims via a post on Twitter early Monday.

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

The rampage was reminiscent of a mass shooting at a Paris rock concert in November 2015 that killed 89 people, part of a wave of coordinated attacks by Islamist militants that left 130 dead.

The concert venue was in an outdoor area known as Las Vegas Village, across the Strip from the Mandalay Bay and the Luxor hotels.

"Our thoughts & prayers are with the victims of last night's tragic events," the Mandalay Bay said on Twitter.

Shares of U.S. casino operators fell in premarket trading on Wall Street, with MGM Resorts International, which owns the Mandalay Bay, down 5 percent. Melco Resorts & Entertainment Ltd, Wynn Resorts Ltd and Las Vegas Sands Corp each fell 1 to 2 percent.

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