The Oprah Winfrey Show

Scott Peterson's own sister believed he was innocent. Now, she says he is a cold-blooded killer, and has 33 reasons why she is convinced her brother is guilty. The only family member to speak out against him, she opens up about her recent trip to prison to see him, Scott's bizarre behavior and what he said about Amber. His marriage, his mother, his sex life…new details you haven't heard.