If that’s the case then it can’t stay secret for long. If he was a lefty anti-Trump guy then it will come out. People will talk.
But there’s plenty of conspiracy crap out there already. I haven’t read anything yet that convinces me of what caused him to go on this wicked rampage.
I saw on another website claims that the FBI found Antifa literature in his hotel room and that he was employed by a predecessor company to Lockheed. Have no idea of the source or veracity of either; what I haven’t is what the MOTIVE was - you don’t trek up to the top floors of a hotel 10 weapons with accompanying ammo and rent two corner rooms without being dedicated with some advance time and thought to this evil mission. But WHY target a country music festival? Had he had a run in with one of the performers? Even psychopaths don’t just go out and plan to do public mass murder - invariably there is some connection between what they do and some past perceived wrong or slight. What would possibly have provoked this murderous weirdo?