San Francisco, California

 San Francisco, California

“As of Aug. 4”: Charlie Chan, Dr. Zodiac, and theThirty-Year Production Coordinate

The First Monday of August: “Swing Mikado,” Charlie Chan, and the San Francisco Media Field

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Commentary vol. 1: The Joost Name and the Cartography of Power

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  Commentary_vol_1_The Joost Name and the Cartography of Power With this post I am opening a new section of the site — Commentary — a space for reflection and interpretation rather than primary analysis. Unlike the Crimes , Ciphers , or Letters pages, these essays will not aim to prove or disprove a specific event but to discuss the broader historical, linguistic, and infrastructural frameworks that surround the Zodiac material. The first commentary arises from Tom Voigt’s October 17, 2025, release of Paul Avery’s private communique to Sherwood Morrill, written on 17 November 1969, in which the Chronicle reporter referred to a “Joost suspect.” [1] The note, unpublished for more than half a century, has reignited debate on the message board of ZodiacKiller.com on Tapatalk [2]. Many commenters have tried to determine which individual Avery might have meant, often listing living members of the Joost family or their descendants. My own approach is different. I am less inte...
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Canonical cipher 3: Z13 vol.1. Entropy based solution of Z13

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  An entropy-based solution of the Z13 based on a cascade consideration of ciphers Comment: Originally proposed in May 2024 on Tom Voigt’s Tapatalk Zodiac Killer forum and message board, this solve has undergone revision that does not take away from the step-1 solution (Table III) nor the end solution (Table IV). The solution wishes to explain the process of step-2 better and contextualize with the solution proposed by Dr. Ryan Garlick. Moreover, it offers a step-3 for the validation of symbols order. Z13 has been considered time and time again as per its short length which does not allow for an inclusion (and therefore discovery) of an internal key. Various suggestions have been provided and various solutions have been proposed, including some very plausible and interesting solutions by zodiac researchers and cipher scholars in this forum, such as cipher (comment: SolidSnake1990) and rando . My approach, based on my signal processing/information theory background, is based ...
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Edward Wayne Edwards vol. 1: Introducing EWE

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