Danley, who also lived with Paddock, has been adamant that she knew nothing about his plans to conduct the attack.
Several hundred pages, including more than a dozen search warrants and affidavits, were unsealed Friday by a U.S. judge in Nevada in response to a lawsuit filed by several media outlets, despite requests from law enforcement agencies that they remain sealed.
The documents lay out what investigators had learned about Paddock in the days following the shooting. But they do not provide a motive for what prompted the 64-year-old professional gambler to murder and terrorize concertgoers from 32nd floor of the Mandalay Bay Hotel before killing himself.
One affidavit includes email exchanges between email@example.com, a Microsoft account that FBI authorities believe belonged to Paddock, and firstname.lastname@example.org. (It is unclear if the FBI knows who is responsible for the latter account.) The messages were sent on July 6, 2017,
The affidavit reads:
"...[email@example.com] sent an email to firstname.lastname@example.org which read, 'try an ar before u buy. we have huge selection. located in the las vegas area,' Later the day, an email was received back from email@example.com to [firstname.lastname@example.org] that read, 'we have a wide variety of optics and ammunition to try.' And lastly, [email@example.com sent an email to firstname.lastname@example.org that read, 'for a thrill try out bumpfire ar's with a 100 round magazine.' Investigators believe these communications may have been related to the eventual attack that occurred at the Mandalay Bay in Las Vegas."
The exchanges took place nearly three months before the onslaught. And CNN reports that "investigators at the time of the filing had been unable to determine if Paddock was sending emails between two accounts both belonging to himself, or was communicating with someone else."
In addition to the two email addresses, the FBI requested and were granted warrants to search Paddock and Danley's Facebook and Instagram accounts. Paddock's Amazon account is also under investigation, as well as a locked phone that was found in his room at the Mandalay Bay.
The FBI has said repeatedly that Paddock acted alone. Danley has not been charged with a crime. She has been questioned by investigators several times.