[WRhine]

I think this guy is unemployed, and recently unemployed. Cops should run down recent layoffs in Maryland, DC, and Virginia.

I would also check on schools and colleges in the area. Students and teachers often have a lot of time on their hands.

[mewzilla]

This is what I don't get. If this guy is some domestic wacko, surely releasing the letter and note/s might go a long way toward finding the guy. They released the anthrax letters, the Unibomber's screed, why hold back on this?