It really is a rehash of the Zimmerman trial.
The definitive truth will never be known.
If you are positive Wilson murdered Brown, there is nothing that will be presented to absolutely 100% positively definitively without a shred of doubt smack you down. Likewise for the Wilson acted in self-defense crowd.
Anyone who takes the "I am right until you prove me wrong" is a manipulated fool. Sorry, you are.
My personal opinion is while the police most certainly fall short of perfect credibility, the pro-MB side of the argument doesn't have any better credibility, I would actually say they have less, and add to that all the physical damage they have caused, as well as harm to other individual employees of law enforcement and government agencies, and their families, local business owners, etc., if I were King Dictator, short of any direct evidence of murder, this case would be thrown out based on the reckless behavior of the pro-MB crowd. There is no chance left any indirect evidence can be believable.
I can only rely on hope that the prosecuting team is taking the court proceedings far more seriously than the mobs outside demanding angry mob justice. And I will stand by the grand jury decision whichever way it lands.