The Troubling Case Against Kevin Cooper

Kevin Cooper is currently incarcerated for the 1983 murder of Doug and Penny Ryen, their daughter Jessica, and friend Christopher Hughes. He has been on death row for over 40 years but maintains he is innocent and is still fighting for a new trial. "48 Hours" correspondent Erin Moriarty reports. This classic "48 Hours" episode last aired on 7/24/2021. Watch all-new episodes of “48 Hours” on Saturdays and stream on demand on Paramount+.