The purpose of a Grand Jury in the United States is to decide whether a crime May have taken place. It seems a shitty bigot of an ADA decided to present the results in a highly irregular manor to this Grand Jury in the Michael Brown case. And they decided not to indict.
So… let’s bring this to its lowest level. An unarmed teenager was shot dead in the street. And this Grand Jury decided that there was no possible way a crime was committed.