A federal judge in Nevada unsealed hundreds of pages of FBI documents about the Las Vegas massacre Friday, giving new insight into the gunman and the months leading up to the deadly mass shooting. The documents, which were released in response to several media lawsuits, include more than a dozen search warrant affidavits. They reveal that gunman Stephen Paddock exchanged emails about buying rifles and bump stocks months before he killed 58 people and wounded more than 500 others when he opened fire on a crowd from a hotel room in October.

The documents show Paddock received an email from a Gmail account in July encouraging him to try an AR-style rifle before buying one. “We have a huge selection in the las vegas area,” the message read. Paddock replied saying that he wanted to test several scopes and different types of ammunition. An email in response suggested trying a bump stock on a 100-round magazine rifle, saying it would be “a thrill.” Paddock’s personal email address and the Gmail address had similar names, leading investigators to suspect he may have been emailing himself, but don’t understand why. READ MORE