Marion Christopher Barry, son of the late D.C. mayor, has died after a drug overdose, family members told News4’s Tom Sherwood. Sherwood first reported the story on Twitter just before 6 a.m. Sunday. He said Barry had struggled with drug use and ran unsuccessfully for the Ward 8 Council seat in 2015 after his father, former Mayor Marion Barry, died.Christopher Barry, 36, was the son of Marion and Effi Barry. Marion Barry was mayor of Washington, D.C., from 1979 to 1991 and 1995 to 1999. He also served on the Council of the District of Columbia for three terms, one...