I can also blame the people that fall for it every time as well, as they're equally part of the problem.
The other side isn't saying much because there is an investigation going on. Too many people are not willing to wait for it. They'd rather make assumptions and draw their own conclusions then chastise those that refuse to accept them prematurely.
The rush to judgement that the officer did something wrong is no more correct than the rush to judgement that Mr. Brown was a criminal (or at best a future criminal) who did something wrong. Both sides are equally irresponsible at this time, which is something that used to be worth a chuckle but more and more has just become sad.