Chicago police are being accused of hiding another video tape of the police murder of a young, unarmed African-American male. Dorothy Holmes, the mother of 25-year-old Ronald Johnson, made those charges as the city continues to deal with the fallout from the release of the Laquan McDonald execution tape last week. As part of that fallout, Chicago Mayor Rahm Emanuel fired Chicago Police Superintendent Garry McCarthy on Tuesday. Johnson was shot and killed by a police officer October 2014, days before Officer Jason Van Dyke shot Laquan McDonald 16 times. Johnson’s family says the cop’s story—that Johnson was running from police and pointed a gun at them—is untrue and the dash cam footage from police vehicles will show that.