Here's the startling bird's-eye view Stephen Paddock would've had from the Chicago hotel he booked just days before Lollapalooza kicked off. This year the festival began on August 3 and finished on August 6.
Those seeking to know the motive of Las Vegas gunman Stephen Paddock have had little more to chase than hints and shadows. Some also suggest putting up more banners or other obstructions to block the view from high vantage points.
Unlike the Route 91 Festival, concertgoers at Lollapalooza wouldn't have found an exit.
Fans watch as Charli XCX performs on day four at Lollapalooza in Grant Park on Sunday, Aug 6, 2017, in Chicago.
At least 400,000 people attended Lollapalooza this year to watch acts including The Killers, Chance the rapper, Liam Gallagher and Charli XCX perform. "We have not confirmed whether that is the same Stephen Paddock, and we're working with the authorities".
USA media, citing multiple anonymous law enforcement sources, reported that searches of the Las Vegas gunman's communications and electronic equipment found that he had scouted locations in both Chicago and Boston. Had Paddock also planned a shooting massacre at the Life is lovely festival?
He also researched hotels around Boston's Fenway Park, a senior law enforcement official with direct knowledge of the matter told NBC News.
The gunman who murdered at least 59 people at a country-music concert on Sunday might have originally targeted another Las Vegas music festival held the previous weekend, according to a senior law enforcement source. That festival featured Chicago's Chance The Rapper, who also performed at Lollapalooza on August 5. It isn't believed that he booked any hotel rooms in that city.
Paddock had an arsenal of 23 weapons in his hotel room.
Investigators still aren't sure whether Paddock had planned an attack there or if he merely engaged in pre-surveillance.
At a Friday afternoon press conference, investigators said they were looking into whether he had tried to attack other similar events. He added, however, that authorities have not completely dismissed the possibility.