ROUGH CUT (NO REPORTER NARRATION)<br/> <br />Civil rights activist Rev. Al Sharpton says that the grand jury system was misused in the case of Michael Brown, the black teenager shot and killed in August by a white police officer in a St. Louis suburb.<br/> <br />At a news conference with the Brown family and their lawyers, Sharpton said the grand jury decision not to issue charges against Officer Darren Wilson was not surprising and urged a continued investigation by the federal government.
