united-states-v-michael-david-sitton-united-states-of-america-v-ronald , 968 F.2d 947 ( 1992 )
United States v. John A. Walczak , 783 F.2d 852 ( 1986 )
United States v. John Ray Wardlow , 951 F.2d 1115 ( 1991 )
Jackson v. Virginia , 99 S. Ct. 2781 ( 1979 )