442 U.S. 100 99 S.Ct. 2190 60 L.Ed.2d 743 Robert DUNN, Petitioner,v.UNITED STATES. No. 77-6949. Argued March 29, 1978. Decided June 4, 1979. Syllabus Petitioner’s testimony before a grand jury in June 1976 implicated one Musgrave in various drug-related offenses, and an indictment of Musgrave followed. On September 30, 1976, petitioner recanted his testimony in […]