Smich could have moved to the middle easily and shot towards the passenger side. Millard would have to shoot while driving or while at an intersection where there might be witnesses. From Trinity road the first stop or intersection is Wilson street so if he suddenly stops for no reason before then bosma will take notice. Any one of those scenarios is pretty risky... Much less risky than having the guy in the back do it. Just doesn't appear a logical choice for the driver to be the shooter when better options are available. Not like smich doesn't know his way around a gun
I think they took the hyway heading east then back west on Wilson and back to Book.
The murder might have happened on this loop.
That would coincide with the vids at SS. moo.