And yet him getting help is what's most likely to cause him mental torment. I don't think he experiences that now based on his refusal to admit guilt for his horrific crimes and instead drag an innocent party through the mud for it. He's still behaving in a way with the intent to just hurt everyone else.
I think he needs help because I believe he needs to be able to truly admit and acknowledge the horrible things he's done and have some sense of shame, remorse and guilt for them. If you don't think he ought to receive help so he can acknowledge the depth of depravity he's sunk to and remorse for what he's done to Alesha and her family so be it.
To be clear however I am not defining "help" as any lessening of punishment for his crime. I think he should be jailed for life at least. Nor does the sorrow I feel for him equal in any way what I feel for his victims. But I can't help feeling sorrow for someone who has turned themselves into a monster and I don't wish to see them feed that monster in them for the rest of their lives.