Ok, a peeve here. It is ENTIRELY possible that the police officer did indeed fire at Brown while he was running away. The autopsy results do not contradict this. The only thing the autopsy results show is that brown was HIT from the front. Shots to the back might not have hit their mark.
Sorry to vent here, just bothers me to see things like this posted when there are obvious potential explanations.
Yes, Wilson firing at Brown while he was running away might provide the hook for Holder to hang him on a cooked-up excessive use of force charge. That fact is still TBD.
This correlates to the 'audio' portion of a video where an 'on-site' witness is overheard describing what happened to another crowd member. His statement (translated from ebonics) was something to the effect that the Officer was shooting , but oddly seemed to be 'missing' his target.