That's what I'm starting to think happened here.
Grew up in at least a relatively good home. Somewhere between then and now he went to junior college between 2010-2012 (never finished), got fired from a job last August and remained (?) unemployed.
Went pot smoker culture between then and now.
I expect the roommates or others who knew him recently could testify as his situation, we’ll see what shakes out.
I tend to be leery of things that paint someone as a rabid this or that when these type of stories break - everybody on all sides have their axes to grind.
But we’ll find out what’s what.
(then again we’re still waiting for the scoop on the Vegas shooter, so.....)