There is only two ways Wilson could be indicted. One is that the evidence be ignored. The other is that additional evidence be fabricated.
The Grand Jury is not about making a finding of guilt. It is about determining whether there is enough evidence to bring the matter to trial. If the evidence to convict isn't there, it isn't there. We went through this with the Duke Lacrosse case and the George Zimmerman case. In both of those cases there wasn't enough evidence to bring the matter to trial. But, to stick a pacifier between black lips, both matters wasted time and money.
We already know one thing, nothing less than a conviction will make protesters happy so a lengthy trial will only delay the inevitable riot. If there isn't enough evidence to indict, there certainly is nothing to convict. How many of these little dances do we need to go through to pacify sensibilities?