Nope...Haven't seen the video. I agree with you for the most part...Just saying what he said so far about the Saudi national sounds credible.
Video or no video the facts remain: the two brothers did have left over bomb stuff in their apartment, they executed a cop, they carjacked another guy, they hurled homemade bombs at the police, they had a shootout with police, the younger ran and hid.
Not sure why everything has to be a conspiracy when the facts leave little to argue about.