Gregg v. Georgia ( 1976 )
California v. Brown ( 1987 )
Franklin v. Lynaugh ( 1988 )
Eddings v. Oklahoma ( 1982 )
Zant v. Stephens ( 1983 )
Skipper v. South Carolina ( 1986 )
Mills v. Maryland ( 1988 )
Penry v. Lynaugh ( 1989 )