David Hoffman has had a long, successful, and productive career in film, on TV, and on YouTube. The Citizen talks in this episode of “I Am Citizen Abels” with Hoffman about life, growing up in New York, his dedication and passion for film and for communicating. Hoffman tells the story of the making of “Sing Sing Thanksgiving,” his documentary featuring a concert with B.B. King and Joan Baez at the notorious Sing Sing prison.