Commonwealth v. Williams , 274 Pa. Super. 464 ( 1980 )
Commonwealth v. Turner , 518 Pa. 491 ( 1988 )
Commonwealth v. Chmiel , 558 Pa. 478 ( 1999 )
Commonwealth v. Grazier , 552 Pa. 9 ( 1998 )
Commonwealth v. Hall , 549 Pa. 269 ( 1997 )