Fifty-two years later, this evidence has failed to materialize. Most people understand the concept of investigators keeping certain information close to their chest so as not to compromise what they are working on, but their failure to produce these compelling links between the Lake Berryessa crime on September 27th 1969 and the Gaviota Beach murders on June 4th 1963 over the past few decades, questions the integrity of these claims. The statement in the press release of "we are not using the notoriety of the Zodiac to dispose of a difficult case" despite the qualifier attached to it, has effectively consequenced the thinking we see in Zodiac forums today, where some cite the Gaviota Beach crime at Canada Del Molino as early Zodiac activity.
Here is a modern day example of having no concrete proof of something ever existing or happening but then using that yet established fact to claim a link between two cases. Tom Voigt wrote "As Edwards was forced to bind Domingos at gunpoint with lengths of narrow rope (probably pre-cut), both victims attempted to flee and were shot numerous times. The bodies were dragged approximately 30 feet to an empty shack occasionally occupied by transients. Edwards was placed face up on top of Domingos and the top of her bathing suit was cut open with a sharp instrument (probably a knife), exposing her breasts".
This is the perfect example of confirmation bias, concluding a strong link between two crimes using a bunch of probables that haven't yet been established. The driving force, like Sheriff Carpenter before him, to forge a link between Lake Berryessa and the Gaviota Beach murders with very little "evidence" and nothing more than a desire to create a fascinating story where one doesn't need to be fashioned. The argued Zodiac connection to the Gaviota Beach murders has undoubtedly kept the 1963 slayings of Robert Domingos and Linda Edwards in the spotlight more than it would have otherwise been, but these claims are an unnecessary distraction that does little to find the killer of Robert and Linda in 1963. The Zodiac Killer could have been responsible for the Gaviota murders, but we have to separate the difference between "a desire to find the truth" from "a desire for something to be true". It is really quite baffling why a 1972 press release would make such bold claims based on so little, unless the objective was an individual's need for self-promotion, or the necessity to reinvigorate a case that had gone significantly cold by using the Zodiac connection as a springboard.
On June 24th 2024 Ross will be making a guest appearance on the Zodcast Channel of Drew Beeson, author of "Sighting in on the Zodiac Killer", to discuss the June 4th 1963 sweetheart murders of the Lompoc High School couple, and whether any connection to the Zodiac Killer exists. Here is a link to the discussion.