GARRY MCCARTHY

A Cook County judge on Friday declined a request to make current and former Chicago police officers testify regarding allegations the department concealed evidence in the killing of an off-duty officer.

McCarthy was CPD superintendent from 2011 to 2015 before being fired by Mayor Rahm Emanuel.

Former Dallas Police Chief David Brown, left, speaks to reporters after Mayor Lori Lightfoot, right, nominated him to be Chicago's next police superintendent Thursday, April 2, 2020. The third was Ernest Cato, a deputy chief on the Chicago police force. The mayor said one of the things that most impressed her about Brown was that he implemented many reforms in Dallas that the Chicago department is now trying to introduce. During his tenure in Dallas, Brown took steps that were controversial among officers, including making use-of-force data public. In December, just days after Johnson announced his retirement and Lightfoot named Beck as the interim superintendent, the mayor abruptly fired Johnson.

The Illinois attorney general is asking the Justice Department to investigate the Chicago police department. Police Superintendent Garry McCarthy was forced to resign Tuesday following the release of a dash cam video showing black teenager Laquan McDonald being shot 16 times by a white officer. The officer is being charged with murder. Dean Reynolds reports.