He's undoubtedly a loner; if he lives with someone, there's almost certainly a place in the house--a basement, maybe, or a garage--that would be off-limits to anyone else. He's got some sort of scientific background and may make his living working in a lab. He doesn't like confrontation, but he's seething with repressed anger. And starting Sept. 11, he became intensely preoccupied--but seemingly not, strangely enough, with the events that gripped the rest of the nation.
So far, the man described by the FBI last week is purely fictional, a portrait assembled in part from what little evidence is available and...