I will agree that there seems to have been a confrontation at the vehicle. Exactly what that was or how severe it was I don't know yet. Obviously, there have been rumors, leaks, friends of friends on radio stations, talk of injuries, talk of no injuries. Unless I missed something that was formally released. As one example, actual medical records recording the exact nature and extent of injuries.
Beyond that, I would respectfully suggest the law is not that clear cut, and rarely is. The law does not require you to be submissive or you'll be shot. It requires that you endanger life or serious physical injury before deadly force can be used. I could be wrong on this point, but I imagine that is the exact decision that a jury would be called upon to determine. An officer simply saying he feared for his life or serious physical injury isn't sufficient all the time. A jury would then determine if that fear was reasonable or not. Again, I just don't know enough facts to determine one way or another if, at the time of the fatal shots, MB posed a danger to life or serious physical injury.
More thorough reports should be able to shed more light on that. For example was MB charging at the time? How far away he was at the time of the various shots? Had MB traveled 55 feet, to turn around and charge to within 35 feet of the car? Where the officer was at the time of the various shots? I'll simply wait and see what further information is released.