Here's where I have trouble in the discussion...
I cannot bring myself to believe that he was shot for walking down the road. At noon. Unarmed, execution style, on a public street. By a white cop who is reportedly clean and won an award. Who, despite the claims of the Chief, knew nothing about a BOLO that came over his radio.
To believe that he kept going after telling them to get out of the road, then stopped and turned around to arrest/shoot MB... Because why?
That narrative just doesn't pass my smell test.
What DOES make sense is that the officer saw them walking in the road, told them to go to the sidewalk, drove on, then realized that they fit the BOLO of a physically aggressive robber, then turned around hastily, and tried to apprehend them, and MB resisted.
What followed, I'm waiting to learn more about. But of the two scenarios, only the second makes any sense to me at all.
(For links to support my description of what the officer knew when, see this post:
http://www.websleuths.com/forums/showthread.php?p=10863798)