For more than a year, a serial killer known as “Son of Sam” terrorized New York City, killing six people and critically wounding seven others. On July 29, 1976, David Berkowitz began a murder spree that left law enforcement baffled and the public afraid to leave their homes, igniting a national media frenzy in the process. Using rarely seen press conferences, interviews and news footage, Smithsonian Channel's The Lost Tapes: Son of Sam recounts the search for one of the most notorious serial killers in history -- as if it were all unfolding in real time.