UNITED STATES OF AMERICA, APPELLEE, v. JOHN CASTONGUAY, DEFENDANT, APPELLANT. No. 87-1555.United States Court of Appeals, First Circuit.Heard February 2, 1988. Decided April 4, 1988. Marshall D. Stein, by Appointment of the Court, with whom Cherwin Glickman, Boston, Mass., was on brief, for defendant, appellant. Cerise Lim-Epstein, Asst. U.S. Atty., with whom Frank L. McNamara, […]