dr. hatfill is under investigation," but their body language was saying, "look, here. this is the guy." >> narrator: but steven hatfill did not do what the justice department and the fbi intended- - break under the pressure. instead, he went on the offensive. >> hatfill doesn't fold. on the contrary, the very sort of gregarious, energetic core of hatfill becomes filled with rage. "how dare they take me on?" >> i want to look my fellow americans directly in the eye and declare to them, i am not the anthrax killer. i know nothing about the anthrax attacks. i had absolutely nothing to do with this terrible crime! >> we were surprised. we weren't expecting him to do that. we didn't think it was at a point where he was going to go public with a position. >> john ashcroft has now twice publicly told the american people that i am a "person of interest" in last year's anthrax attacks. >> it was his life. it was his anguish. and he was not guilty of what he was being charged with. >> mr. ashcroft has not only violated justice department regulations and guidelines, which bind him