Kevin Cooper: Letter from San Quentin

Nearly 20 years ago a death row inmate wrote to "48 Hours" that he was framed for the murder of four people. Was evidence planted? New DNA tests could answer that question. Correspondent Erin Moriarty investigates. To learn more about listener data and our privacy practices visit: https://www.audacyinc.com/privacy-policy Learn more about your ad choices. Visit https://podcastchoices.com/adchoices