The guys motive was one of four things:
1. A homegrown Jihadi.
2. A rabid leftist.
3. A guy who was nuts.
4. All of the above.
I'll take what's behind door number 2...
The word is guy started acquiring all his weapons in November of last year.. What happened in November of last year.?? The Election of President Trump.!!
A leftist he was... He was seen at liberal protest on several occasions... He was photographed there... Him and the girl both...
I do find it very curious why the folks who know he have not come forward... (?)
That's false.
His 33 gun buying spree started in October 2016, well before the outcome of the election was known.
Doesn't rule out anti-trump as a motivation, but makes it less likely.