On March 22, 1971, the Zodiac killer provided a communication to the San Francisco Chronicle newspaper
By Tom Voigt | Founder: Zodiackiller.com | tomvoigt@zodiackiller.com
This communication was not traditionally mailed by the Zodiac killer. Rather, it was left in the lobby of the San Francisco Chronicle building. Hence it contains no postmark data. It was the second time a Zodiac correspondence was intended for reporter Paul Avery.
The intended meaning on the back of the homemade card is a matter of pure conjecture.
(All of the communications featured in my updates were authenticated by police.)
For in-depth information and discussion about all of the Zodiac killer’s communications — including ciphers — see my Zodiackiller.com discussion forum.
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