People v. King , 66 Ill. 2d 551 ( 1977 )
People v. Tye , 141 Ill. 2d 1 ( 1990 )
People v. Thomas , 137 Ill. 2d 500 ( 1990 )
People v. Nitz , 143 Ill. 2d 82 ( 1991 )