United States of America, Appellee, v. Edgar Calle-Cardenas, Defendant, Appellant. United States of America, Appellee, v. Wilson Velasquez-Santariaga, Defendant, Appellant. United States of America, Appellee, v. Mario Jaramillo-Echeverri, Defendant, Appellant., 837 F.2d 30 (1st Cir. 1988)