from washington, roger depue. he's a former chief of the f.b.i.'s behavioral sciences unit and the founder of the academy group. i am pleased also to have him. let me first go to roger depue and talk about the profiles of people who do this and what... how does he fit any particular profile and what as things are coming out do you notice about this man? >> well, it's hard to talk about a specific profile. there are significant differences between them. however there are warning signs that generally exist in the background of the individual before the shooting takes place and that's the case with this gentleman as well as people like cho in the virginia tech case. >> rose: what kinds of things are you talking about? >> well, i would say the... there are about 25 things that we call warning signs. i frame it this way, charlie: i say that first you have a fantasy in most of these cases and the fantasy exists and it has to do with... you know, in a mentally disturbed person with very bizarre things that you can't really... you can't really formulate wh