St. Louis' top prosecutor has asked a court to set aside the conviction of a man who has spent 33 years in prison for a killing he says he didn't commit, after witnesses who testified against him later said authorities had pressured them to lie.
In her request to overturn Christopher Dunn's first-degree murder conviction, St. Louis Circuit Attorney Kim Gardner cited “clear and convincing evidence” that he had not been involved in the 1990 shooting death of Ricco Rogers.
