Mayor Emanuel to address council on police crisis

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CHICAGO -- Mayor Rahm Emanuel has called a special City Council meeting to give an address about Chicago's police department — the center of the biggest crisis of his administration.

Wednesday morning's speech will come two days after U.S. Attorney General Loretta Lynch announced a Justice Department civil rights investigation to determine if there are patterns of racial disparity in the police department's use of force.

Emanuel has been engulfed in a media firestorm since a video was released two weeks ago showing the killing of a black teenager by a white police officer who shot him 16 times. Since then, Emanuel has forced the police superintendent to resign, brought in a new head of an agency that investigates police shootings and fended off calls for his own resignation.

Several groups have planned for protests Wednesday at City Hall and a nearby plaza.