Chicago Police Superintendent Garry McCarthy (L) and Mayor of Chicago Rahm Emanuel (R) are shown during a recruitment graduation ceremony in Chicago, Illinois on April 21, 2014. Chicago's police chief was ousted on December 1, 2015 following days of unrest over video footage showing the shooting of a black teenager and the filing of murder charges against a white police officer in the young man's death. Picture taken on April 21, 2014. REUTERS/Jim Young