I'd like to think he's redeemable but I don't know our society has the means to redeem him or get him there and he does need to be held account for his crimes to date. People in that way need intricate support. I don't necessarily think other societies can deal with it either. Maybe he isn't and his brain and circumstances are faltering on him.However people want to define sociopath, the fact that DJ was actually having those thoughts, sharing them on social media, and actually driving to at least one of the campuses he mentioned to scout out a potential shooting spree is beyond disturbing and incredibly scary.
I hate so much that he's ended up down this road. That both of them have ended up where they are. Really hope he can be healed.
Life isn't very supportive when it goes wrong and people need to live their lives.