It is not a serious question.  Guilty of what? Some of the occupiers were just found innocent.  Some with the same history, plea bargained and are in jail.  Which are guilty and which are innocent.  Initial DA charges, typically serious felonies regardless of actual actions, are reduced for a plea bargain.  So the DA gives a partial pardon?  On whose authority?  There is great disparity in American justice.  The prosecutor decides what the charges are.  Different prosecutors make different choices.  In some cases, e.g. murder, justice is simple i.e. guilty or not.   In cases where a jury actually renders a verdict, I expect that they usually get it right and the person is guilty (but not always).  Plea bargains, no.