DAVID FINCHER: And that's one of the things I was really impressed with about the cops on the case. I mean, you meet cops and they have their intellect but then they have that other thing, that thing that you describe: it's the gut, it's the reflex, it's the thing that's like, 'I looked in his eyes and I knew it was him, but there's nothing I can do.' And, like, that's an oddly valuable thing that can't be discounted. QUESTION: In the same way you can tell someone's a cop. DAVID FINCHER: You can smell them. QUESTION: A lot of serial killers have obsessions with policemen. DAVID FINCHER: When you're talking about a serial killer you're not talking about the most confident people [laughs]. That's the thing that's so odd, is that they're always pictured in movies as being incredibly tough and assured and that's not the case. The thing that's fascinating for me about Zodiac is I believe his compulsion and his addiction was not ultimately about maiming people or murdering them, it became about communicating with the San Francisco Chronicle and that became far more gratifying and far more seductive then what he started out doing. QUESTION: He apparently took some of his cues from movies. DAVID FINCHER: I don't know how much of that is true. I mean, look, in order to get past that normal kind of human restraint you have to have a pretty fulfilling and powerful fantasy component. So, obviously that stuff was