Paul Avery had spent months covering the unidentified killer terrorising Northern California for the San Francisco Chronicle, turning his byline into the public face of the investigation. That attention made him a target of the very man he was writing about.
On 27 October 1970, the Zodiac Killer sent a letter addressed directly to Avery, taunting the journalist for the coverage that had made his name synonymous with the case. The killer was never identified, and the letter remains one of the eeriest pieces of correspondence in a case still unsolved more than half a century later.
