It does sound like he had access to money somehow. Anybody got any ideas on why he would have been living in a homeless shelter, and at that a homeless shelter managed by a man who was apparently suspicious of him?
Tacoma = police would respond to neighbors complaints of gunshots. Shelter = priest got noisy. Mohommad goes full blown terrorist = lives in car to avoid detection. It appears to me that Mohammad was trying as best he could to adhere to some of the rules of the Al Queda terrorist, keeping to himself, deceiving others. But since he is an American, and has American relatives, he is forced to live 2 different life styles. His relatives say he was warm and caring. The people at Stuart's say Mohammad and Malvo keep to themselves, never smiling (Atta trait). Mohammad is just another Richard Reed, with a specialty, a craft (snipper shooting).