Purely from memory, so someone with the comic handy correct me.
He handcuffs the guy to a spot (I think the furnace the little girl was burned in), sets the house on fire and throws him a hacksaw. Says something like, "It will take you 10 minutes to cut through the handcuffs. Only two to cut through your wrist, the fire will kill you in less than five. I doubt you have what it takes to live."
Then he walks out, and there is an agonized scream, the guy never makes it out. A very chilling moment in the book and the movie didn't do it justice IMO.