It was actually rather funny, as when I first told the person about D.B. Cooper, they couldn't believe that someone actually got away with something like that.
The Axeman of New Orleans is a pretty creepy serial killer. Comes in the night and beats your door down with his axe so he can bash your face in.
And then H.H. Holmes is probably one of the scariest for me because he probably killed over a hundred people, and he didn't give a damn. His whole house was DESIGNED around killing people, and then he sold their bodies and skeletons to universities. I mean, fuck, you have to have a couple screws loose to do something like that. And then he seems perfectly natural, even a lady's man. I mean, it's just ridiculous.