People v. Illgen , 145 Ill. 2d 353 ( 1991 )
People v. Williams , 188 Ill. 2d 365 ( 1999 )
People v. Jamison , 197 Ill. 2d 135 ( 2001 )
People v. Delvillar , 235 Ill. 2d 507 ( 2009 )
People v. Johnson , 154 Ill. 2d 356 ( 1993 )