Letters From Sing Sing

Dan Sleppian is a longtime investigative producer with NBC News. In 2002, he received a letter from a New York State prison from a man serving 25 years to life for a murder he insisted he didn't commit. The letters would spark a 20-year journey to uncover the truth and what I've learned haunts me. This is Letters from Sing Sing, a podcast from NBC News Studios. All episodes are available now.