UNITED STATES OF AMERICA, PLAINTIFF-APPELLEE, v. CHARLES SCHRADER, DEFENDANT-APPELLANT. UNITED STATES OF AMERICA, PLAINTIFF-APPELLEE, v. LISA HIGH WOLF, DEFENDANT-APPELLANT. UNITED STATES OF AMERICA, PLAINTIFF-APPELLEE, v. CLAYTON HIGH WOLF, DEFENDANT-APPELLANT. UNITED STATES OF AMERICA, PLAINTIFF-APPELLEE, v. SHAUN KEITH, DEFENDANT-APPELLANT. Nos. 92-3727, 92-3728, 92-3936 and 92-3939.United States Court of Appeals, Eighth Circuit.Submitted May 12, 1993. Decided December […]