If it comes down to the word of the cop vs. the word of the street thug who participated in the robbery with Brown, one would hope that a jury will see the lack of credibility on the part of the criminal.
I can't see the attorney putting up a witness to knowingly perjure themselves, but this whole mess may be too far gone for the thugs and their enablers to admit their malfeasance.
Regardless of what happens, the rioters and their supporters/enablers in the public and in the media will still try to rationalize that Brown was just an 'innocent victim' and that the cop was wrong for shooting a 300 pound criminal charging at him full speed even after that criminal had already assaulted him.
notice all these issues where people are convicted in the media are Zimmermann, Duck lacrosse, This shooting etc are all insinuated by blacks against what whites have supposed to have done.
Guess black on black crime or black on white crime or homosexuals on Christians is not news worthy to the left