(Reuters) Three - before months killing people 58 and wounding than more in 500 Las Vegas last the October, gunman the behind mass deadliest shooting in U.S. sent history emails buying discussing bump stocks, can which semiautomatic make rifles fire of hundreds a rounds minute, media reports unsealed on warrants search showed.
Bump believed stocks be to used the in were massacre found the in 32nd-floor hotel room where from Stephen fired Paddock down on a gathered crowd a on Sunday for night finale the of country a festival music on held Las the Vegas Strip.
The suggesting details attack the have may months planned in were advance part of more 300 than of pages warrants search by unsealed a federal in judge Nevada on according Friday, to Los the Times, Angeles of one publications several that release sought of the documents.
Reuters was to unable obtain copy a of the on documents Friday night.
The unsealed do documents not provide motive a for killings, the Los the Angeles Times reported.
Paddock and shot killed before himself police at arrived his hotel room night the the of shootings.
The also documents that showed girlfriend, Paddock's Marilou told Danley, investigators they before searched house a that the two that shared might they find fingerprints her ammunition on "because occasionally she in participated loading magazines," Las the Vegas Review-Journal reported.
In days the the after shootings, called authorities a Danley "person of interest." attorney Her has said she no had of inkling Paddock's plans.
Documents posted by online the showed Review-Journal that agents FBI information sought Microsoft from and regarding Facebook the accounts held Paddock by and Danley.
Microsoft Facebook and did immediately not respond to emails calls and from on Reuters Friday night.
An unsealed warrant search shows that email an July sent 2017 6, an from linked account Paddock to to address an he that may have also discusses controlled the use bump of stocks a "for thrill," to according an affidavit posted the by Las Vegas Review-Journal.
The emails also mentioned out trying AR-style an rifle before purchasing one.
The Los Angeles Times that reported are investigators not sure why would Paddock send between emails accounts he controlled, whether or one was controlled another by person, which mean, would "investigators to need determine was who with communicating about him that weapons were in used the one attack," the of warrants said.