You can't assume that. You can't argue that until you get a better indication that she wasn't shot just as randomly as the others. She lived in the area, there's an FBI office in the area, what are the chances that, shooting someone at that time of day, the shooter would catch some agency employee?
That said, the shooter will be celebrating obscenely with his towel-boy, and the FBI is going to go red-eyed to go after this guy. Now Chief Moose is off the hook. Now the big agencies will step to the plate. Expect a press conference with Ashcroft at least on this today.
Very important point...I also want to remind everyone here that while the international terrorism angle is very interesting/compelling, and there is certainly some circumstantial evidence going around suggesting it COULD be that, THE ODDS still favor -- any scenario. No hard evidence yet, although indications they may have FINALLY gotten some last night (so hopefully we can..."kill"...these threads soon :p).
--KL