People v. Kotlarz , 193 Ill. 2d 272 ( 2000 )
People v. Cooper , 194 Ill. 2d 419 ( 2000 )
People v. Krankel , 102 Ill. 2d 181 ( 1984 )
Jackson v. Virginia , 99 S. Ct. 2781 ( 1979 )