I can’t speak to the shooter’s motivations (though meme forensics seems pretty silly) but the “at a Right wing state with a Right wing governor” etc bits seem pretty dumb.
It’d be like saying the guy who went after Pelosi was clearly a Leftie because it was in a Leftie state, with a Left song governor, in a Left wing city against a Left wing politician. Pretty nonsense points and make us look dumb.
You should write a poem about that!