Writer, researcher, and podcaster Michael Butterfield returns for Part 2 of our discussion on the Zodiac case. In this episode, we focus on the chilling attack at Lake Berryessa on September 27, 1969. The victims were college students Cecelia Shepard and Bryan Hartnell. While Bryan survived, Cecelia tragically succumbed to her injuries.

Michael walks us through the details of this attack and how it differed from the earlier shootings. We discuss what the killer’s behavior may reveal, and how it fits within the broader pattern of attacks attributed to the Zodiac.

Michael is the host of Zodiac: A to Z and the author of the upcoming book The Zodiac Killer: The Story of America’s Most Elusive Murderer, scheduled for release on May 6, 2025.

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Music “Light in the Basement” by John Hanske. Listen to more of John’s music on Spotify.

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