The younger brother of Las Vegas killer, Eric Paddock has expressed shock at the mass murder by Stephen Paddock that came apparently out of the blue.

Las Vegas killer Stephen Paddock was a “wealthy” 64-year-old who liked playing video poker in Nevada’s ubiquitous casinos, according to his brother.

Eric Paddock last communicated with his older brother Stephen more than two weeks before his sibling unleashed a barrage of automatic weapons fire that killed more than 50 festival-goers on Monday in Las Vegas.

The younger Paddock and their elderly mother both live near Orlando, Florida, where they were without power for several days after Hurricane Irma lashed the Florida Peninsula last month.

“He texted me and said, ‘How’s Mom?'” Eric told reporters Monday outside his house as his family and police grapple with a mass murder that came apparently out of the blue.

ALSO READ: 'Las Vegas Gunman Was A Retired Accountant'

Paddock said that his 64-year-old brother “absolutely” had no mental problems or political motives that the family was aware of.

“We’re trying to understand what’s happened,” Eric said. “We’re still just completely befuddled, dumbstruck.”

Las Vegas police said Stephen Paddock died of an apparently self-inflicted gunshot late Sunday when officers stormed his 32nd-floor hotel room, from where he fired unrelentingly on people attending an open-air country music festival.

Stephen had “nothing to do with any political organization, religious organization, no white supremacists, nothing – as far as I know,” Eric said.

“He doesn’t even have parking tickets. He has no criminal record. He has no record of any affiliations. He has nothing that I know of.”

In Las Vegas, an FBI official said there was “to this point no connection with an international terrorist group.”

The Islamic State movement had issued a claim of responsibility – without offering evidence – with the unverified assertion that Paddock was a recent convert to Islam.