i acknowledge the conversation you are trying to start but the murder's actions are so egregious that it makes that topic nearly impossible to discuss.
The loss of life here and how it happened trumps any notion of what this guy went through, whether it was true or not. On a normal basis you are not going to find too many non-minorities willing to acknowledge that there are in fact hardships that a person in that guy's position can endure, now, you are definitely going to be hard pressed to find anyone after he goes out and commits a crime like he did.
The most I can say is that the guy did go the professional route first and file a lawsuit. He didnt come out the gate and go crazy. But after the L he took going that route, he should have just charged it to the game and moved on. Instead he let the hate build inside and never got professional help. Dude went crazy. He was functional enough to seek help though and he didn't, so he is at fault.