Nos. 88-1481, 88-1517. Argued September 16, 1988. Decided February 6, 1989. Stephen M. Komie, Joshua Sachs, Chicago, Ill., for defendants-appellants. Laurie N. Feldman, Asst. U.S. Atty., Chicago, Ill., for plaintiff-appellee. Appeal from the United States District Court for the Northern District of Illinois. Before CUMMINGS, POSNER, and MANION, Circuit Judges. MANION, Circuit Judge. Defendants appeal from convictions for conspiracy to distribute cocaine, aiding and abetting in distribution of cocaine