"They'd slip up. I'm sure of it. I've worked with and around enough of them to know. They get too caught up in their own game or feel like they're not gaining the recognition they deserve. Returning to the scene of the crime and whathaveyou. And even if they don't confess or out themselves and it IS part of something grander, surely someone will notice before long.

"You seem invested in this matter. Was someone close to you one of the murder victims? Or are you just that convinced we've a matter of a serial killer on our hands?" Well, hand and claw in some cases.