The People v. Montgomery , 47 Ill. 2d 510 ( 1971 )
People v. Ray , 54 Ill. 2d 377 ( 1973 )
Knowles v. Panopoulos , 66 Ill. 2d 585 ( 1977 )
People v. Redmond , 67 Ill. 2d 242 ( 1977 )