Commonwealth v. Mallory , 596 Pa. 172 ( 2008 )
Commonwealth v. Boyd , 461 Pa. 17 ( 1975 )
Commonwealth v. Bhillips , 475 Pa. 427 ( 1977 )
Commonwealth v. Pierce , 515 Pa. 153 ( 1987 )
Padilla v. Kentucky , 130 S. Ct. 1473 ( 2010 )
Strickland v. Washington , 104 S. Ct. 2052 ( 1984 )