Just drove by there. Took me exactly 4 minutes to get there, with traffic. Gah.
Anyway... VERY heavy police presence. They have the entire road (Railroad) closed down now. Media is completely lining the streets. If I had to guess, across the entire scene, there's about 60 police cars, several FBI vans, and a military style truck just drove in a minute ago (assuming bomb guys). They may be about to detonate something. Or have found something significant. The house is pretty tiny. They have police tape all the way down to the end of the street (Pecan) and several businesses in between closed down (from Pecan, all the way to Walnut, down Railroad).
Anyway... just wanted to let everyone know what my eyeballs saw. Scary, very surreal scene over there, made me ill driving by. I used to play at the park closeby as a kid. I drive by that street DAILY. DAILY!!!
I really feel for his family.
Seems likely that he was building the bombs at his home. There may be more bombs stored there and probably some explosive materials, etc. Police are probably being extra cautious in removing everything.
They're probably just being very cautious to protect the public, just in case. If he had roommates, how were they not aware of what he was doing? It appears to be a rather small house.