First of all, I'm not braying about "racist cops", I'm asking for FPD to step up with their side of the story. They haven't offered it, which is unique when you consider that in these types of events, there's usually at minimum a Police incident report available at this point. That the FPD has otherwise handled itself so poorly to the effect that they were relieved of their duties this week, and that they were detaining journalists makes it hard to have faith that there isn't anything odd about this.
Second of all, the officer's presumption of innocence is ultimately tied to his side of the story (that we aren't hearing). We know what he did, insofar as Michael Brown is dead. So let's hear why it happened.
Thirdly, the "narrative" you keep mentioning isn't terribly relevant to why this kid is dead. The "narrative" is just some bull**** you see on cable news networks that Sean Hannity and Nancy Grace get to blather on about like the soulless hacks that they are. If that's what you want to get upset about, you might as well go outside and shout at the sky. The modern media doesn't matter enough to get so up in arms over what stories they're telling. It's our ability to sift through their sensationalist nonsense that has more value.
All that said: Yes, if Brown was a bullying jerk, it's going to make it less surprising if the FPD's version of the story is that Brown attacked an officer. Yes, the eyewitness accounts are flat out odd in some respects, but we aren't waiting for those stories to come out right now are we? I know I'm not too concerned over some BS claim that the officer tried to pull the kid into his squad car. I just want to know, from FPD, what happened.