(ABC)– Stephen Paddock, 64, is the man suspected of killing more than 50 people and injuring more than 400 in Las Vegas on Sunday night in what is now believed to be the worst mass shooting in US history, police said today.
According to police, the shooter opened fire from the 32nd floor of the Mandalay Bay Resort and Casino at a large crowd of more than 20,000 concertgoers across the street attending the final night of the Route 91 Harvest Music Festival. Witnesses described the shooting as “nonstop gunfire,” suggesting the use of automatic or semi-automatic weapons.
Police responded to the scene Sunday night and breached the suspect’s hotel room and found the suspect dead. Officials said they did not believe there were any more shooters. Police said “numerous firearms” were found in Paddock’s hotel room at Mandalay Bay.
Police had been seeking to question the suspect’s girlfriend, Marilou Danley, 62, who appears to have lived with Paddock in Mesquite, Nev., about 80 miles northeast of Las Vegas, but authorities do not believe she was involved in the shooting as she was located out of the country.
The motive for the shooting remains unclear. Police said Paddock had no criminal history, save a minor citation. He appears to have worked as an accountant or auditor and was at one point employed by a company that later become Lockheed Martin, one of the world’s largest defense contractors.
“Stephen Paddock worked for a predecessor company of Lockheed Martin from 1985 until 1988,” the company tells ABC in a statement. “We’re cooperating with authorities to answer questions they may have about Mr. Paddock and his time with the company.”
Paddock was also a licensed hunter and private pilot. He owned an aircraft that he kept at Mesquite Metro Airport in Texas from 2007 to 2009.
“I do not recall that he was ever a person who created any problems for us,” the airport director told ABC News. “He kept his accounts up to date and we never had any problems with him here.”
Eric Paddock, the suspected shooter’s brother, told ABC News that the family was completely “dumbstruck” by the news, likening the revelation to being “crushed by an asteroid.”
“We have no idea how or why this happened,” Eric Paddock said. “As far as we know, Steve was perfectly fine.”
Officers have also responded to the suspect’s home where police said a search warrant will be executed.