Gagnon v. Scarpelli ( 1973 )
Gregg v. Georgia ( 1976 )
Zerby v. Shanon ( 2009 )
Seilhamer v. Pennsylvania Board of Probation & Parole ( 2010 )
Commonwealth v. Turner ( 1988 )
Estelle v. Gamble ( 1976 )
Hughes v. Pennsylvania Board of Probation & Parole ( 2009 )