Exclusive to Zodiackiller.com, this is a letter Paul Avery believed was from the Zodiac killer, although somewhat disguised By Tom Voigt | Founder: Zodiackiller.com | tomvoigt@zodiackiller.com San Francisco Chronicle reporter Paul Avery. I recently obtained his personal collection of Zodiac-related items, including this letter The envelope The letter For those who wish to contribute: https://www.paypal.com/donate/?hosted_button_id=XULCL3G2K2986