Further proof that you don't get away with anything is this world of ours. He never got caught for killing Adam, but ended up finishing his life in prison none the less. Karma always finds it's way back to you. I'm happy for the closure afforded the family.
I do not think he has any closure from this press release. The dad has suspected this guy of doing it for years and he has died in prison already. Maybe a tiny bit of closure.
Were I not a good Christian, I would probably say something like, "Toole, I hope you burn in hell. Say hi to Dahmer." If I were not a good Christian. Personally, I believe there is an extra special punishment for child murderers.