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CHICAGO, IL - NOVEMBER 24:  Chicago Police Superintendent Garry McCarthy listens as Mayor Rahm Emanuel speaks during a  press conference called to address the arrest of Chicago Police officer Jason Van Dyke on November 24, 2015 in Chicago, Illinois. Van Dyke has been charged with first degree murder for shooting 17-year-old Laquan McDonald 16 times on October 20, 2014 after responding to a call of a knife wielding man who had threatened the complainant and was attempting to break into vehicles in a trucking yard. Emanuel and McCarthy announced they were releasing police video of the shooting during the press conference.  (Photo by Scott Olson/Getty Images)
CHICAGO, IL - NOVEMBER 24:  Chicago Police Superintendent Garry McCarthy listens as Mayor Rahm Emanuel speaks during a  press conference called to address the arrest of Chicago Police officer Jason Van Dyke on November 24, 2015 in Chicago, Illinois. Van Dyke has been charged with first degree murder for shooting 17-year-old Laquan McDonald 16 times on October 20, 2014 after responding to a call of a knife wielding man who had threatened the complainant and was attempting to break into vehicles in a trucking yard. Emanuel and McCarthy announced they were releasing police video of the shooting during the press conference.  (Photo by Scott Olson/Getty Images)

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Mayor fires police chief amid Laquan McDonald fallout

The Chicago police chief is out and a new task force announced after outrage over police shooting of Laquan McDonald. CNN's Ryan Young reports.

Mayor fires police chief amid Laquan McDonald fallout

The Chicago police chief is out and a new task force announced after outrage over police shooting of Laquan McDonald. CNN's Ryan Young reports.