For me it's Bind, Torture, Kill: The Inside Story of the Serial Killer Next Door.

Just the thought of how much damage a person can do, even if they're a moron, if they kill complete strangers and are smart enough to cover their tracks. That is the scariest thing to me.

If you've read it or know about the case, what do you think of the Kansas Police? Did they do enough to catch this serial killer? Do they deserve all the flack they get? I don't think they did because they had the foresight to refuse to analyze, and thus waste, decades old DNA on archaic technology that might have failed to find the man who they were looking for. A man who continued to get away with his crimes and managed to kill several dogs, and almost start an entirely new crime spree.