From what I know of psychopathy, it usually holds more of a causal relationship with atheism more than a correlative one. That said, assuming I could personally justify an act of some sort, then I wouldn't be far removed from acting on it. I consider myself a Christian, for sure, but I don't really experience 'fear' of permanent repercussions. There's possible reasons for that, I suppose, but that's just to say that... there's more than just a black or white area.