(reuters) -- Stephen Paddock, who killed himself moments before police stormed the hotel suite he had transformed into a sniper’s nest on Sunday night, left no clear clues as to why he staged his attack on an outdoor concert below the high-rise building.

But law enforcement authorities were hoping to obtain some answers from a woman identified as Paddock’s live-in companion, Marilou Danley, who Clark County Sheriff Joseph Lombardo said was a “person of interest” in the investigation.

Lombardo, who said on Monday Danley was believed to be in Tokyo, told reporters on Tuesday she had been located in the Philippines and the Federal Bureau of Investigation was in the process of trying to bring her back to the United States.

“We are in conversations with her,” he told an afternoon news briefing. He reiterated police had no other suspects in the shooting itself.

Danley, an Australian citizen reported to have been born in the Philippines, had been sharing Paddock’s condo at a retirement community in Mesquite, Nevada, about 90 miles (145 km) northeast of Las Vegas, according to police and public records.

Investigators were examining a $100,000 wire transfer Paddock, 64, sent to an account in the Philippines that “appears to have been intended” for Danley, a senior U.S. homeland security official told Reuters on Tuesday.

The official, who has been briefed regularly on the probe but spoke on condition of anonymity, said the working assumption of investigators was that the money was intended as a form of life insurance payment for Danley.

The official said U.S. authorities were eager to question Danley, who described herself on social media websites as a “casino professional,” mother and grandmother, about whether Paddock encouraged her to leave the United States before he went on his rampage.

    The official said investigators had also uncovered evidence that Paddock may have rehearsed his plans at other venues before ultimately carrying out his attack on the Route 91 Harvest country music festival from the 32nd floor suite of the Mandalay Bay hotel on the Las Vegas Strip.

Fresh details about the massacre and the arsenal Paddock amassed emerged on Tuesday.

Police said Paddock strafed the concert crowd with bullets for nine to 11 minutes before taking his own life, and had set up cameras inside and outside his hotel suite so he could see police as they closed in on his location.

(Photo: bbc)