The shooter almost certainly has leftist sympathies, if not a history of outright leftwing activism. The evidence is ample:
1) Mainstream media has not reported his political views yet.
2) The left blogosphere has avoided the issue also.
3) He was accepted into a PhD program, which often indicates that the candidate has been vetted by leftist faculty and found acceptable.
4) An AP piece I just read called him “complex,” a reliable euphemism for scrambling journalists looking to mitigate the damage when a leftwinger does something indefensible.
The “shooter is a registered Democrat -that info was posted in the LA Times.