United States v. David Velasquez , 136 F.3d 921 ( 1998 )
United States v. Harold Davis , 53 F.3d 638 ( 1995 )
United States v. Rudolph A. McClellan , 164 F.3d 308 ( 1999 )
United States v. Olano , 113 S. Ct. 1770 ( 1993 )