Looks like it--well, sort of caught; he committed suicide before they could arrest him. I think some of the conspiracy theories going around, about how the Bush administration used anthrax to push us into war, are completely ridiculous. On the other hand, I'm not sure how much confidence I have that this was actually the perpetrator--Steven Hatfill and Richard Jewell are enough to illustrate that the FBI has a gift for getting things spectacularly wrong. Unfortunately, now that he's dead, we'll almost certainly close the case with his name on it and move on. Possibly leaving the real anthraxomaniac at large.
A short documentary about Bruce Riley, an artist who paints abstract wonders with poured resin