Tried and true- simply look at what the media *isn't* reporting. If there was a whiff of "white nationalism" or verified Trump support, it would be out.
I am in no way saying it doesn't exist (there are videos of his roommate stating he switched parties and was a Trump voter and watched InfoWars)- what I am saying is, if they had it, they'd be running with it. All that aside- I condemn the attack, whatever the motivations were. I don't care which "side" it came from, or none at all.
They aren't releasing the manifesto because "there isn't enough there"... so you're telling me you aren't releasing a nothingburger?
It really seems like the just ran with the term "manifesto" because the past major news shooting (Luigi) had one.
Reading this it sounds like the dude just had a target list in his journal.