This Is The Zodiac Speaking is a three-part docuseries, directed by Ari Mark and Phil Lott, that examines how Arthur Leigh Allen, long suspected to be the infamous Zodiac Killer, terrorized the San Francisco Bay Area in the late 1960s and early 1970s. The Zodiac Killer had five known victims, but letters he sent into San Francisco newspapers, complete with coded messages that were only partially broken, claimed that he killed dozens. But the Seatwater family knew him as a teacher and a family friend.
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Opening Shot: Scenes of an empty community pool and complex, and people from the Seawater family talking about how graceful a diver Arthur Leigh Allen was, especially for a big man.
The Gist: The series goes back and forth between the early 1960s, with interviews with the various Seatwater siblings who had Allen as a teacher when they were in elementary school, and the late 1960s, when the murder of a young couple in Vallejo was followed up by the first of the Zodiac letters.