The previous weekend, Paddock had rented a high-rise condo in a building that overlooked the Life is attractive alternative music festival featuring Chance the Rapper, Muse, Lorde and Blink-182, said Lombardo, who offered no other details about what led Paddock there.
Those seeking to know the motive of Las Vegas gunman Stephen Paddock have had little more to chase than hints and shadows.
He made the reservation on Expedia, and learned that the hotel couldn't guarantee him a room overlooking Grant Park, where the multi-day concert takes place.
Paddock, who slaughtered 58 people and injured 489, had allegedly booked two hotel rooms overlooking the Lollapalooza festival area during its duration in August.
According to the report, Paddock was aggressive and said that he need a room with a view because he would be celebrating his anniversary with his wife, and the two met at Lollapalooza.
Paddock rained bullets down on concert-goers from a nearby hotel tower, killing 58 and injuring hundreds more.
It was also reported that Paddock also attempted to book rooms at the Ogden, a luxury condo tower, during the Life is attractive festival in Las Vegas in late September - but found they were all taken.
However, Paddock never showed up for the reservation.
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"We are aware of recent media reports concerning Chicago and the Blackstone hotel and have been in communication with our federal partners", CPD spokesman Anthony Guglielmi tweeted.
He requested specific suites at the Ogden and another unidentified hotel, but moved on when he discovered they were booked, an inside source told CBS on Wednesday. The 3 days festival ran from September 22 to September 24, it featured Chance the Rapper, Lorde and Blink 182.
Hundreds of thousands attended the August music festival at Chicago's Grant Park, including Malia Obama, the former president's daughter.
Meanwhile, Las Vegas police have revealed that Paddock, who killed himself after carrying out his brutal bloodbath, had originally hoped to survive his shooting and flee justice - and likely had an accomplice.
But he ultimately chose to mount an attack from the Mandalay Bay Resort and Casino across the street from the Route 91 Harvest country music festival held last weekend. They observed the suspect down on the ground and also saw a second door that could not be accessed from their position.
Australia's foreign affairs department said Friday it is aware she is "a person of interest" and described her case as "a matter for USA law enforcement".
Paddock sent Danley on a trip to her native Philippines before the attack, and she was unaware of his plans and devastated when she learned of the carnage while overseas, she said in a statement. Police have yet to comment on why he scouted the locations in Boston and Chicago, but a federal official said that authorities are looking into the possibility that Paddock may have planned additional attacks, potentially including a vehicle bombing. She is wheeled off her flight at Los Angeles International Airport in a wheelchair.
The profile developed so far is of a "disturbed and dangerous" man who acquired an arsenal over decades, Sheriff Joseph Lombardo said.