Clark County Sheriff Joseph Lombardo gave a press conference Tuesday and responded to questions whether Las Vegas shooter Stephen Paddock had been “radicalized.”

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Speaking to reporters, Lombardo said, “I want to understand the motivation that you described, okay, to prevent any future incidents, and, you know, did this person get radicalized unbeknownst to us? And we want to identify that source.”

The Islamic State repeatedly claimed responsibility for the attack Monday, though federal authorities have said there is no evidence that is the case.

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Paddock, a 64-year-old white male, wired $100,000 to an account in the Philippines a week before his attack, which was the deadliest mass shooting in modern American history. (RELATED: Shooter Wired $100,000 To Philippines The Week Before Massacre)

Paddock’s girlfriend, 62-year-old Marilou Danley, an Australian national of Filipino descent, was in the Philippines at the time of the attack. She is still in the Philippines, and American authorities want to talk to her when she returns.

WATCH AERIAL FOOTAGE OF WHERE THE LAS VEGAS SHOOTING TOOK PLACE:



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