This opinion cites 20 cases:

Weems v. United States ( 1910 )


Trop v. Dulles ( 1958 )


Furman v. Georgia ( 1972 )


Coker v. Georgia ( 1977 )


Lockett v. Ohio ( 1978 )


Rummel v. Estelle ( 1980 )


Eddings v. Oklahoma ( 1982 )


Enmund v. Florida ( 1982 )


Woodson v. North Carolina ( 1976 )


Harmelin v. Michigan ( 1991 )


Atkins v. Virginia ( 2002 )


Roper v. Simmons ( 2005 )


Kennedy v. Louisiana ( 2008 )


Solem v. Helm ( 1983 )


Summers v. State ( 1997 )


Nguyen v. State ( 2007 )


Wright v. State ( 1994 )


Ford v. Wainwright ( 1986 )


Thompson v. Oklahoma ( 1988 )


Penry v. Lynaugh ( 1989 )