I just found out about this business in New Zealand, because I avoid the MSM and have so many filters on FB that I missed the hysteria. I learned about it from here, believe it or not. Which I see as a distinct bonus.
However Timcast spoke of it and now Sargon of Akkad just put out one. The thing they both emphasis many times, is that the attacker clearly stated in his manifesto, he was doing this to accelerate the rancor between Left and Right.
And spark an Identitarian Conflict.
So the entire massacre was, believe it or not, a targeted Outrage-Industry publicity stunt. He literally planned to set everyone at each other's throats. He knew how best to hurt America (whom he explicitly stated he was targeting) and due to the Outrage Industry and virtue-signaling, it -totally- worked. Everyone out there screaming at each other online is doing his bidding...
I'll just link the videos. Here's Sargon of Akkad:
And Timcast:
I'm gonna go hug my cat now.