He will not be recovering to where he was before May 5th. That is already all too apparent. He has no use of his right hand and he is severely reduced in use of his right leg. When he recovers sufficiently to actually take some food by mouth, he will be ready to probe his memories.
I wish you could kill the guy but I really can’t imagine how you could even find him! I am so, so sorry. These creeps are brainless; their souls are dead.