People v. Roberts , 75 Ill. 2d 1 ( 1979 )
People v. Perruquet , 68 Ill. 2d 149 ( 1977 )
People v. Hoffer , 106 Ill. 2d 186 ( 1985 )
Patterson v. New York , 97 S. Ct. 2319 ( 1977 )