IMHO if it was a Deep State intention for the massacre, it was a warning to Trump of what they were capable of doing if he didn't back down. Second theory is it was the Feds running guns and drugs to terrorists and the terrorists figured it out, killed Stephen Paddock and used all the guns he was going to sell them for the massacre. Stephen Paddock's work history and his father's criminal past and being on the FBI most wanted list seems to be the kind of history to be FBI informants or Intel assets.