The shooter has died. Having seen post-shooting pix of vehicles at the scene, he was probably well perforated.
No info about motive - from the police or, AFAIK, from "journalists" independently digging into his background. Of course, if he was a MAGApublican who attacked a trans or a muslim or some other Prog-favored-demographic person, we'd know everything about back to when he was caught at age 5 running with scissors. That's how MSM curiosity leans.
BTW, this is getting sub-minimal coverage in US MSM, because:
1. There's no Hate-Trump angle to it;
2. JOOOOooooossssssssss!
3. There's no Hate-Trump angle to it;
4. It's in Syrupia;
5. There's no Hate-Trump angle to it.