Update: Comments from Kathleen T. Zellner about the decision were added to the story.A U.S. District Court judge declined to dismiss a civil rights lawsuit filed by a man who walked free in 2015 after his murder conviction in the death of a 17-year-old Johnsburg teen was overturned.Mario Casciaro’s March 2017 lawsuit contends the city of McHenry, the city of Johnsburg and various law enforcement officials who …