also, thoughts on Graham Yost's post-mortem with Entertainment Weekly (p.s. read those if you haven't already! here's a link
http://insidetv.ew.com/2012… )

I like to think that Quarles' son is real, and that in his warped, psychotic view of reality, he feels he HAS to beat and possibly rape those rent boys so that his son can have a happy life free from violence. Like, if he doesn't he fears he'll treat his son like his father treated him, or worse.