He wasn't doing much good when I got there. The man is insane, which means he isn't likely to change his behaviour. The serum didn't open his mind, it just broke it. He's an insane blob in control of a limitless supply of Big Daddies and I let him stay that way.
i killed him, since he kind of wanted to die
also he was kind of insane
so i didnt get the good achievement
im doing a drill only runthrough of it and getting the bad ending now