5 chilling details about the Zodiac Killer 

This is the Zodiac Speaking is a new three-part documentary series that was added to Netflix on October 23, 2024. The documentary looks further into the Zodiac killer's case, using fresh evidence that has emerged recently.

The documentary features members of the Seawater family, who were connected to the main suspect in the case ~ Arthur Leigh Allen.

Here are five things one should know about the Zodiac murders, before watching This is the Zodiac Speaking on Netflix.

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5 unsettling details about the Zodiac Killer's case

1) The Zodiac Killer murdered Betty Lou Jensen and David Faraday, among others

As revealed in This is the Zodiac Speaking on Netflix, the Zodiac killer murdered a 16-year-old girl named Betty Lou Jensen and a 17-year-old boy named David Faraday. The boy and the girl were shot several times. No motive for the killing was found and there were no leads to crack this case. This was revealed by the authorities who appeared on the show.

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2) Darlene Ferrin was killed brutally by the Zodiac Killer

The notorious killer shot Darlene and her friend, Michael, in July 1969. Michael was shot in the knee and the mouth and Darlene was also shot multiple times. Darlene’s sister recalled this horrific incident on the show and said:

"I went to the morgue. I saw her laying out on the slab. She looked beautiful. Like nothing was wrong…I gave her a kiss…'I'm gonna find out who did this.'"

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3) After committing murders, the Zodiac killer sent letters and ciphers to media houses and law enforcement

Three identical letters containing a cipher arrived on July 31, 1969, at three publishing houses- the Vallejo Times-Herald, the San Francisco Chronicle, and the San Francisco Examiner. Presumed to be sent by the Zodiac, the letter read:

"This is the murderer...to prove I killed them I shall state some facts that only I and the police know...I want you to print this cipher on the front page by Friday afternoon, August 1, 1969...if you do not do this, I will go on a killing rampage."

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4) The cipher was decoded and the revelation was scary

The cipher, which was sent by the Zodiac killer, was decoded, and the revelation in it turned out to be disturbing. The cipher was decoded in August 1969 by Donald and Bettye Harden, a couple in Salinas, California. It read:

“I like killing people because it is so much fun. It is more fun than killing wild game in the forest because man is the most dangerous animal of all . I will not give you my name because you will try to slow down or stop my collecting of slaves for my afterlife."

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5) To date, the Zodiac mystery remains unsolved

The Zodiac killer claimed to have killed 37 people with ropes, guns, and knives, but he has never been apprehended. No motive for his crimes has been revealed either.

Concerning the case, Robert Graysmith (investigator and author), who featured in the show, said:

“ I don’t think there’s anybody else that was there. I was there . 50 years from now, we will be talking about this case. The case that will never die. ….somebody out there knew something…”

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This is the Zodiac Speaking is now playing on Netflix.