I've never seen his posts do much but ad a note of cold logic into threads about industrial accidents and stomach bugs, where posters are in full tin foil hat mode and are easy to imagine in the danger zone of having a stroke.
I'll take a stab at it:
There's a perfectly logical explanation for the papers found in the car: Al-Salmi's friend was going to pick him up at the Federal Building in a plane (thus he had to stand by the window) and give him a flying lesson, and during the flight they were going to discuss his friend's "immigration problem." Furthermore, Al-Salmi left the scene of the accident because he didn't want to be late and miss his plane ride.
A perfectly innocent explanation, and we should all be ashamed of our suspicions.
How's that?