United States v. Johnson , 66 S. Ct. 464 ( 1946 )
Giglio v. United States , 92 S. Ct. 763 ( 1972 )
United States v. Robert L. Grapp and William Kenneth Thatcher , 653 F.2d 189 ( 1981 )
Berger v. United States , 55 S. Ct. 629 ( 1935 )