Paddock was not among the highest rollers in Las Vegas, but he was well known in the city's casinos and was rewarded for his loyalty with perks like free hotel rooms, including the Mandalay Bay suite he carried out his shooting rampage from, the New York Times reports.
"We are aware of the media reports and have been in communication with our federal partners", chief police spokesman Anthony Guglielmi said.
His motive still remains unknown.
Clark County Undersheriff Kevin McMahill said Friday at a news conference that examinations of Paddock's politics, finances, any possible radicalization and his social behavior have turned up little information on what led to the attack.
After using a hammer to break out two windows in his room, the shooter sets up a sniper's nest from which he begins firing down on the crowd of 22,000 at the country festival from a quarter mile away during singer Jason Aldean's set.
"The Hyundai that was sought in connection with the LV (Las Vegas) shooting was located during a search warrant executed at (Stephen) Paddock's house in Reno", Las Vegas Metropolitan Police Department (LVMPD) tweeted on its official page. He also wired her money.
In a statement spoken by her lawyer, Ms Danley said her boyfriend was a "kind, caring and quiet man".
At this point there is no evidence Paddock was in Boston.
The attack remains the worst mass shooting in modern us history, but even before this shootings have become commonplace and gun regulation is a continued discussion whether it be gun safety, better background checks, or restricting assault rifles and military-style weapons.