[blam]

I saw an old forensic guy say (TV, last night) that 2-3 hours after they found the shell casing that they knew whether it was a 'match' or not. I wonder why we haven't been told anything yet?

[swarthyguy]

My guess - it is a match. Shooter left on a plane from Dulles after truck dropped off. Support team ( using fake cards and ids ) safely back home.