The Sing Sing FilesIn 2002, Dan Slepian, a veteran producer for NBC's Dateline, received a tip from a Bronx homicide detective that two men were serving twenty five years to life in prison for a 1990 murder they did not commit. Haunted by what the detective had told him, Slepian began an investigation of the case that eventually resulted in freedom for the two men and launched Slepian on a two decade personal and professional journey into a deeply flawed justice system