THE ZODIAC KILLER | The Complete CaseAll Confirmed and Suspected Victims. Every Letter. Every Cipher. Every Credible Suspect. Every Development. The Full Story. ________________________________ This episode of the podcast covers the complete case of the Zodiac Killer, the unidentified serial murderer who killed at least five people and seriously wounded two others in the San Francisco Bay Area of California between December 1968 and October 1969, claimed responsibility for thirty seven murders in letters sent to Bay Area newspapers, and was never identified, arrested, or charged by any law enforcement agency. The episode covers every confirmed attack in full, including the murders of David Arthur Faraday, Betty Lou Jensen, Darlene Elizabeth Ferrin, Cecelia Ann Shepard, and Paul Lee Stine, and the survivals of Michael Renault Mageau and Bryan Calvin Hartnell. It covers the possible connection to the 1966 murder of Cheri Jo Bates in Riverside, California. It examines every Zodiac letter and cipher in full, including the 408 cipher decoded by Donald and Bettye Harden in August 1969 and the 340 cipher solved in December 2020 by David Oranchak, Jarl Van Eycke, and Sam Blake after fifty one years. It examines in full the primary suspect Arthur Leigh Allen, the DNA exclusion evidence, the fingerprint and handwriting evidence, and the reasons no charges were ever filed. It covers the other credible suspects, including Lawrence Kane and Gary Francis Poste. It covers the full investigative history across the Vallejo Police Department, the Solano County Sheriff's Office, the Napa County Sheriff's Office, the San Francisco Police Department, and the California Department of Justice. It covers the case's status as of the time of research and what remains possible in terms of future resolution.Sources for this episode include the primary Zodiac letters as archived and reproduced in the public investigative record, Robert Graysmith's "Zodiac" (1986) and "Zodiac Unmasked" (2002) used as secondary sources with appropriate skepticism regarding their suspect conclusions, Michael Butterfield's extensive public research on the case at Zodiackiller.com, the documented statements of surviving witnesses Bryan Hartnell and Michael Mageau, the published work of cipher researchers David Oranchak, Jarl Van Eycke, and Sam Blake on the 340 cipher solution, the public statements of the San Francisco Police Department, the Napa County Sheriff's Office, and the Vallejo Police Department regarding the case status and DNA evidence, newspaper coverage of the case in the San Francisco Chronicle, the San Francisco Examiner, and the Vallejo Times Herald from 1969 through 2023, and the documentary record of the investigative interviews with Arthur Leigh Allen as reported in multiple investigative journalism accounts and the Graysmith books. Dates, names, and forensic details have been verified against multiple independent sources. Where verification was not possible or where accounts conflict, uncertainty has been noted in the script. The case of the Zodiac Killer remains open and active under the jurisdiction of multiple California law enforcement agencies. ________________________________ This episode is dedicated to David Arthur Faraday, Betty Lou Jensen, Darlene Elizabeth Ferrin, Cecelia Ann Shepard, and Paul Lee Stine. And to Bryan Calvin Hartnell, Michael Renault Mageau, and Kathleen Johns, who survived. Their names belong in this record.