As a bonus for Internal Affairs listeners, we’re sharing a special preview of Letters from Sing Sing, a new original podcast from NBC News Studios. Letters from Sing Sing tells the story of a man convicted of murder, his fight for justice, and how the letters he sent NBC News & Dateline producer Dan Slepian sparked a 20-year investigation that changed both of their lives. Follow now to get the first two episodes on Monday, February 20: https://link.chtbl.com/lfss_fdtw