Preliminary investigations show that Paddock was travelling with a female companion named Marilou Danley just hours before the attack.
Las Vegas: Sixty-four-year-old Stephen Paddock has been identified as a prime suspect in the Las Vegas shooting massacre by police.
Preliminary investigations show that Paddock was travelling with a female companion named Marilou Danley hours before the attack.
Paddock was reportedly known to police and hailed from Mesquite in Nevada, some 80 miles from Vegas. He lived in a two-bedroom home.
The suspect's brother, Eric Paddock, said the family was stunned by the news.
The initial probe also shows that he was not connected to any terror organisation.
Authorities have reportedly found several weapons in Paddock's hotel room after the mass shooting, which is said to be the deadliest in modern US history.
At least 50 people were killed over 400 others were injured, some critically when Paddock opened fire on the crowd at a music concert from the 32nd floor of the nearby Mandalay Bay Resort and Casino on Sunday night.