Yep, all signs point in that direction. The groypers always had a beef with Charlie because he wasn't as extreme as they wanted him to be.
The bottom line is that this fucker shouldn't have been able to walk onto that campus with a rifle anyway. Even his family and friends saw all the signs and some even enabled him to do it.
He was (still is) an Instrument of God. I didn't know Kirk at all before this week (surprisingly) but after a few days listening to him now, is it no wonder to me that he was taken right in the middle of his talk and sent to Judgement.