UNITED STATES OF AMERICA, PLAINTIFF-APPELLEE, v. DAVID BARRERA, DEFENDANT-APPELLANT. No. 87-1230.United States Court of Appeals, Tenth Circuit. April 7, 1988. Page 1577 Alan F. Zvolanek, Albuquerque, N.M., for defendant-appellant. Presiliano A. Torrez, Asst. U.S. Atty. (William L. Lutz, U.S. Atty., and James D. Tierney, Asst. U.S. Atty., with him on the brief), Albuquerque, N.M., for […]