"Schizophrenics with antisocial personalities..."

"Yeah," Madman's eyes lit up with interest. "Don't you think he's interesting? Is it worth studying?"

My mouth twitched a few times.

That's funny. I didn't realize it was scary, that's true.

"Why do you have to study him?"

"Do you know what a 'sociopath' is?

Instead of answering me, he asked a question and proceeded to answer it himself.

"People with antisocial personalities are highly impulsive and ...