WASHINGTON, Nov. 5 -- The U.S. Department of Justice Marshals Service issued the following news release: * * * Memphis Safe Task Force Arrests Nineteen-Year-Old with Warrant for Second-Degree Murder * Memphis, Tennessee The Memphis Safe Task Force announces the successful arrest of Martravius Vinson, 19, in Memphis, Tennessee. At approximately 1:00 p.m. on Tuesday, Nov. 4, members of the Memphis Safe Task Force with the assistance of the United States Marshals Service Special Operations Gr  more