The sheriff in Las Vegas now says 851 people suffered injuries directly related to the October 1 mass shooting that became the most deadly in modern USA history, including 422 who were hurt by gunfire.
The month before the massacre, the report says Paddock checked into The Ogden, a downtown Las Vegas condominium complex, on September 17 and that his stay coincided with the "Life if Beautiful" festival, another heavily attended open-air music festival. The police outlined a timeline of Paddock's activities nearly every hour, since he checked into room 32-135 of the Mandalay Bay at 15:33 p.m. (GMT 2230) on September 25, 2017.
Investigators also revealed Friday that Paddock had Googled locations in Venice and Santa Monica, California around the same time he was researching landmarks in Boston.
Another was "biggest open air concert venues in US".
Police have been unable to find a missing hard drive from Paddock's computer.
Investigators believe Paddock made a decision to take his own life when he realized authorities were within close proximity to him, Lombardo said.
After following 2,000 leads, Las Vegas investigators still believe Paddock worked alone.
Lombardo says the FBI has "an ongoing case against an individual of federal interest". The FBI has said it has found "no connection with an global terrorist group".
He had stockpiled an arsenal of firearms in his hotel room before opening fire on crowds attending a country music festival on the night of 1 October 2017.
On an HP laptop seized from one of his Mandalay Bay hotel rooms after the massacre, authorities found a web search from that Thursday in May for "La Jolla Beach", as well as evidence that he'd visited sandiego.org, the region's tourism website. They include the blasted-out window from where Paddock fired more than 1,100 bullets, the surveillance cameras he positioned to warn of anyone approaching and explosives in his auto. In fact, Campos had been shot in the leg with a round Paddock had fired into the hotel hallway.
Several bullets hit aviation fuel storage tanks at nearby McCarran International Airport, but the tanks did not explode.
During the brief press conference, the sheriff said he was going against normal protocols to release this information.
Investigators found 23 guns in the rooms, including 12 rifles fitted with "bump stock" devices that allowed rapid-fire shooting similar to fully automatic weapons.
The preliminary report includes a timeline of events beginning when Paddock checked into the Ogden hotel in Las Vegas weeks before the shooting and ending with when he was discovered dead with a self-inflicted gunshot wound to the head.
The 64-year-old retired accountant was a high-stakes gambler and real estate investor.
Danley was in the Philippines at the season of the shooting.
On Friday, Lombardo announced Danley will not be facing any charges. She was questioned by the Federal Bureau of Investigation when she arrived in Los Angeles from overseas, and was described as cooperating with investigators.
In a press conference Friday, Las Vegas County Sheriff Joe Lombardo said the report provides an overview of shooter Stephen Paddock. Other friends and family members told police that Paddock claimed to consistently feel ill, in pain or worn out, but Paddock's physician told investigators that Paddock's only major ailment was a muscle tear from a slip-and-fall incident in a casino three years before the shooting.
The two were staying in room 60-235 and she observed Paddock constantly looking out the windows of the room which overlooked the Las Vegas Village venue, the report says.
She described him as "germaphobic" and said he had strong reactions to smells. Over the course of the previous year Paddock began to buy firearms and Danley believed it was a hobby of his.
"Thousands of hours of digital media were reviewed and after all the interviews conducted, no evidence exists to indicate Paddock conspired with or acted in collusion with anybody else".
But it remains unclear why he targeted the concert, the central mystery that has gone unsolved since he opened fire on the Route 51 Harvest music festival in the deadliest mass shooting in modern American history.