Stephen Paddock, the 64-year-old gunman responsible for the nation's deadliest mass shooting, was a mild mannered accountant who lived a quiet life with his girlfriend in Mesquite, Nevada.
Paddock fired a fully automatic rifle into a crowd of country music fans from his 32nd floor room at the Mandalay Bay Resort & Casino in Las Vegas Sunday night.
50 people are dead and 406 people were transported to area hospitals, according to the Las Vegas Police Department. One of the confirmed dead was an off-duty Las Vegas police officer.
Police say Paddock died from a self-inflicted gunshot wound before a SWAT team used an explosive charge to blow open the door to his hotel room.
Officers found 10 guns and high capacity magazines inside the room.
Police initially said they were looking for Paddock's girlfriend, Marilou Danley. She was located outside of the U.S.
Country music star Jason Aldean was wrapping up his set when the shooting began.
"Tonight has been beyond horrific... I wanted to let everyone know that Me and my Crew are safe," Aldean wrote in an Instagram post after running off the stage.
President Trump tweeted his condolences to the families of the deceased. Trump will hold a press conference to address the massacre today at the White House.
My warmest condolences and sympathies to the victims and families of the terrible Las Vegas shooting. God bless you!
— Donald J. Trump (@realDonaldTrump) October 2, 2017
Photo by David Becker/Getty Images