Source: LV shooter booked Chicago hotel overlooking Lolla

Lollapalooza
Fans watch as Charli XCX performs on day four at Lollapalooza in Grant Park on Sunday, Aug 6, 2017 in Chicago. (Photo by Rob Grabowski/Invision/AP)

LAS VEGAS (AP) — In the days and months before he mowed down concertgoers from his high-rise hotel suite, gunman Stephen Paddock booked rooms overlooking two other music festivals in Las Vegas and Chicago, authorities said.

They gave no details on what his intentions might have been.

The disclosures came as investigators struggled for a fourth day to explain what led the 64-year-old high-stakes gambler to open fire Sunday night on an open-air country music festival from the 32nd floor of the Mandalay Bay hotel casino. He killed 58 people and injured nearly 500 before taking his own life.

This undated photo provided by Eric Paddock shows his brother, Las Vegas gunman Stephen Paddock. (Courtesy of Eric Paddock via AP)

Authorities have been trying to track Paddock’s movements leading up to the deadliest mass shooting in modern U.S. history.

In early August, Paddock booked a room at Chicago’s 21-story Blackstone Hotel that overlooked the park where the Lollapalooza music festival was being held, a law enforcement official said Thursday.

The official said no evidence has been found that Paddock ever came to Chicago that weekend. Lollapalooza draws hundreds of thousands of music fans every year to Grant Park.

The official was not authorized to discuss the case publicly and spoke on condition of anonymity after being briefed on the investigation. Paddock’s booking of the hotel room was first reported by TMZ.

A spokesman for Chicago police said on Twitter they were aware of the reports, but did not confirm them.

Also, the weekend before the Las Vegas bloodbath, Paddock rented a high-rise condo in a Las Vegas building that overlooked the Life is Beautiful alternative music festival, Sheriff Joseph Lombardo said Tuesday.

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He offered no other details about what led Paddock there. The music festival featured Chance the Rapper, Muse, Lorde and Blink-182.

Debris litters a festival grounds across the street from the Mandalay Bay resort and casino Tuesday, Oct. 3, 2017, in Las Vegas. (AP Photo/Marcio Jose Sanchez)

When Paddock checked into the Mandalay Bay on Sept. 28, he specifically requested an upper-floor room with a view of the Route 91 Harvest music festival, according to a person who has seen hotel records turned over to investigators and spoke on condition of anonymity.

Investigators trying to establish the motive for the attack have had little more to chase than hints and shadows.

While other mass killers have left a trail of plain-sight clues that helped investigators quickly understand what drove them to violence, Paddock led a low-key, private life. He had no known criminal record and almost no close friends or social media presence.

The No. 2 official in the FBI said Wednesday he was surprised investigators had not uncovered more.

“There’s all kinds of things that surprise us in each one of these events. That’s the one in this one, and we are not there yet,” FBI Deputy Director Andrew McCabe said. “We have a lot of work to do.”

Investigators have zeroed in on a weapon-buying binge Paddock went on in the year before the attack. They wonder if he had some sort of mental break at the time that drove him to start making plans for mass murder.

They are also looking at his gambling habits and checking records for any disputes he might have had with casinos or fellow patrons.

This undated photo provided by the Las Vegas Metropolitan Police Department shows Marilou Danley. (Las Vegas Metropolitan Police Department via AP)

On Wednesday, FBI agents trying to understand his state of mind questioned his girlfriend, 62-year-old Marilou Danley, who was out of the country during the attack. She was visiting her native Philippines.

She said she had no inkling of his murderous plans.

“He never said anything to me or took any action that I was aware of that I understood in any way to be a warning that something horrible like this was going to happen,” she said in a statement read by her lawyer.

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Gurman reported from Washington. Associated Press writers Don Babwin in Chicago; Brian Melley and Andrew Dalton in Los Angeles, Regina Garcia Cano and Michelle Price in Las Vegas; Jim Gomez and Teresa Cerojano in Manila, Philippines; and Richard Lardner, Eric Tucker and Tami Abdollah in Washington contributed to this report. 24 Hour News 8 also contributed to this report.