At least 515 others were injured in the Sunday night attack, authorities said.
SWAT teams using explosives stormed the gunman’s hotel room in the sleek, gold-colored glass skyscraper and found he had killed himself, authorities said. He had as many as 10 guns with him, including rifles, they said.
There was no word on a motive for the attack. Aaron Rouse, the FBI agent in charge in Las Vegas, said investigators saw no immediate evidence connecting it to an international terror organization, despite a claim of responsibility from Daesh, also known as the Islamic State group.
Mayor Carolyn Goodman said the attack was the work of a “crazed lunatic full of hate.”
Country music star Jason Aldean was performing Sunday night at the end of the three-day Route 91 Harvest Festival in front of a crowd of more than 22,000 when the gunman opened fire from inside the 44-floor Mandalay Bay Hotel and Casino across the street.
The gunman was identified as Stephen Craig Paddock, 64, of Mesquite, Nevada. He had checked into the hotel room on Thursday, authorities said. Police said he was a retiree with no criminal record in the Nevada county where he lived.