CHATTANOOGA, Tenn. - On June 28, 2016, a federal grand jury returned a superseding indictment charging Darius Jermaine Blakemore, a.k.a. Tank, 27, of Chattanooga, Tenn., Joshua Corbett, 27, currently of Chattanooga, Tenn., and Jessica Rachels, 25, currently of Chattanooga, Tenn., with conspiracy to distribute heroin resulting in the death of...