
Breaking the Mythology: The hoax theory is tested as two experts study the Zodiac letters. Filmmaker Andrew Nock meets a witness for her first on-camera interview. (2 of 2)

The Hoax Theory: A British professor reveals a hoax theory on America's famous cold case, sending filmmaker Andrew Nock on a trip into the world of "The Zodiac". (1 of 2)

The Hoax Theory: A British professor reveals a hoax theory on America's famous cold case, sending filmmaker Andrew Nock on a trip into the world of "The Zodiac". (1 of 2)

Breaking the Mythology: The hoax theory is tested as two experts study the Zodiac letters. Filmmaker Andrew Nock meets a witness for her first on-camera interview. (2 of 2)

Breaking the Mythology: The hoax theory is tested as two experts study the Zodiac letters. Filmmaker Andrew Nock meets a witness for her first on-camera interview. (2 of 2)