ET's Bob Goen spoke to Marcia Clark, who unsuccessfully prosecuted O.J. Simpson 10 years ago. The Early Show then got reaction from Catherine Crier, who interviewed Simpson last night. watch
In a The Great American History quiz video, Marcia Clark discusses Dr. Sam Sheppard's 1954 murder trial. Sheppard was accused of killing his wife but claimed that a mysterious intruder was the real killer; but no one believed him and he went to jail. watch
