Do you know anything about the evidence in the case or in fact the law? Or the bar in the mid-west US which is exponentially lower than in Canada for indictments (charge approval). Were you there? Did you read the over 1000 pages of evidence and hear the testimony of the over 60 witnesses, most of which were sympathetic to Mr.Brown? Pretty dangerous to draw conclusions based on what people who get paid to sell newspapers say, IMHO.
PS if the officer was to be indicted or convicted, manslaughter would not be an appropriate charge as that means that the officer did not specifically intend to kill Mr. Brown. I think he did, so second degree murder would be the appropriate charge here, but the GJ found that the statutory defence of self defense applied I would assume. Having said that, only if there was evidence to support it; and the Grand Jury heard a lot of evidence in a political environment where it would have been really easy not to have the courage to make the right decision.
This is not about the shooting/justification of said event when you think about it. That is why those a bit more obtuse than others hitch their emotions to this as a lightning rod for what is really the issue here.
It is about something else. Which is the really the elephant in the room.
Sir M