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Zodiac ‘340 Cipher’ Cracked by Code Experts 51 Years After it Was Sent to the S.F. Chronicle
San Francisco Chronicle ^ | Dec. 11, 2020 | Kevin Fagan

Posted on 12/11/2020 1:16:26 PM PST by nickcarraway

The solution to what’s known as the 340 Cipher, one of the most vexing mysteries of the Zodiac Killer’s murderous saga, has been found by a code-breaking team from the United States, Australia and Belgium.

The cipher, sent in a letter to The Chronicle in November 1969, has been puzzling authorities and amateur sleuths since it arrived 51 years ago. Investigators hoped the Zodiac, who killed five people in the Bay Area in 1968 and 1969, would reveal his name in one of his many ciphers, but there is no such name in the 340.

According to code-breaking expert David Oranchak, the cipher’s text includes: “I hope you are having lots of fun in trying to catch me. ... I am not afraid of the gas chamber because it will send me to paradice (sic) all the sooner because I now have enough slaves to work for me.”

Oranchak, a 46-year-old web designer who lives in Virginia, has been working on the Zodiac’s codes since 2006.

“This is exciting,” Oranchak said in an interview Friday. “We’ve been sitting on the solution since last Saturday. When I first started looking at the Zodiac ciphers all those years ago, I thought, ‘Oh, I can just write a computer program and solve it,’ but it’s been kicking my a— all this time. Until now.”

Cameron Polan, spokeswoman for the FBI’s San Francisco office, confirmed Oranchak’s claim Friday. In a statement emailed to The Chronicle, she said:

“The FBI is aware that a cipher attributed to the Zodiac Killer was recently solved by private citizens. The Zodiac Killer case remains an ongoing investigation for the FBI San Francisco division and our local law enforcement partners.

“The Zodiac Killer terrorized multiple communities across Northern California, and even though decades have gone by, we continue to seek justice for the victims of these brutal crimes,” she continued. “Due to the ongoing nature of the investigation, and out of respect for the victims and their families, we will not be providing further comment at this time.”

This is the second time a Zodiac cipher has been cracked. The first, one long cipher sent in pieces to The Chronicle, San Francisco Examiner and Vallejo Times-Herald newspapers in 1969, was solved by a Salinas schoolteacher and his wife.

Known as the 408 cipher, it said little beyond: “I like killing because it is so much fun.”

To crack the 340 cipher — so named because it contains 340 characters — Oranchak teamed up with two fellow, amateur code crackers and ran the bewildering set of symbols through special software programs. His teammates were Sam Blake, a mathematician in Australia, and Jarl Van Eykcke, a warehouse operator in Belgium.

“I could not have done this without them,” Oranchak said. “All of us in the crypto community on the Zodiac figured the cipher had another step beyond just figuring out what letters belonged to the symbols, and that’s just what we found here.”

Oranchak’s findings started leaking out on some of the many Zodiac amateur sleuth forums, such as zodiackillersite.com, over the past couple of days, causing much excitement in that widespread world of true-crime buffs.

In most ciphers, like the 408, the solution consist mainly of figuring out which letters are represented by certain symbols. In the 340 cipher, it turned out the alignment of the words runs diagonally down the page, and they occasionally they get shifted over a column.

It’s a complicated bit of code creation, Oranchak said, but a basic scheme for it can be found in at least one U.S Army code manual from the 1950s.

As the team began breaking down the methods in the cipher, they unpeeled a couple of phrases that let them know they were on the right track. There were references to “gas chamber” and “the TV show,” which seemed to refer to Jim Dunbar’s “AM San Francisco” show on KGO-TV that aired in October 1969. On that show, Dunbar and attorney Melvin Belli took a call from a person claiming to be the Zodiac, and he said, “I don’t want to go to the gas chamber.”

In the solved cipher, the Zodiac writes: “That wasnt (sic) me on the TV show.”

Kevin Fagan talks Zodiac on radio Chronicle reporter Kevin Fagan will talk about the Zodiac at 1:06 p.m. with Pat Thurston on KGO radio (810 AM) and at 2:20 p.m. with Jeff Bell and Patty Rising on KCBS radio (740 AM).

Text of the 340 Cipher The solution to the 340 cipher, according to Oranchak’s team:

I HOPE YOU ARE HAVING LOTS OF FUN IN TRYING TO CATCH ME THAT WASNT ME ON THE TV SHOW WHICH BRINGS UP A POINT ABOUT ME I AM NOT AFRAID OF THE GAS CHAMBER BECAUSE IT WILL SEND ME TO PARADICE ALL THE SOONER BECAUSE I NOW HAVE ENOUGH SLAVES TO WORK FOR ME WHERE EVERYONE ELSE HAS NOTHING WHEN THEY REACH PARADICE SO THEY ARE AFRAID OF DEATH I AM NOT AFRAID BECAUSE I KNOW THAT MY NEW LIFE IS LIFE WILL BE AN EASY ONE IN PARADICE DEATH

Cipher video To see a video about cracking the code, go to: //bit.ly/2W8muCC

“We knew we had something because of the Dunbar show,” Oranchak said. “One of the interesting things about this is that it forces the minimum date of the cipher’s construction — maybe he had one and adjusted it, but it couldn’t have been in that form prior to Oct. 22, when the Dunbar show aired ... when The Chronicle got the 340 letter.” The Chronicle published a story on the letter and the cipher on Nov. 12.


TOPICS: Crime/Corruption; Culture/Society; News/Current Events; US: California
KEYWORDS: 340cipher; 408cipher; btkkiller; california; code; cryptography; davidoranchak; epigraphyandlanguage; garyfrancisposte; godsgravesglyphs; jarlvaneycke; samblake; sanfrancisco; serialkiller; zodiac; zodiackiller
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To: nickcarraway

Nice to have a real solve and not some work by a crank that requires huge leaps in logic like you often get when reading about such things.


21 posted on 12/11/2020 1:46:26 PM PST by Stravinsky (Politeness will not defeat the Marxist revolutionaries)
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To: Seruzawa; Bratch
He more likely tried to kill the wrong person and is pushing up daisies somewhere.

I doubt it. He seemed to be a pretty good victim profiler.

22 posted on 12/11/2020 1:47:38 PM PST by nickcarraway
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To: Spirit of Liberty

...supposed to name himself? I don’t know.

I don’t think all murderers are crazy, just evil. But if these are his genuine thoughts he was obviously out of touch with reality.


23 posted on 12/11/2020 1:51:50 PM PST by Persevero (I am afraid propriety has been set at naught. - Jane Austen )
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To: nickcarraway

Based on this I wonder if he believed everyone he murdered would be his slave after his death.


24 posted on 12/11/2020 1:54:00 PM PST by Persevero (I am afraid propriety has been set at naught. - Jane Austen )
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To: nickcarraway

Codes using obscure books as a method of coding re: The Key To Rebecca.


25 posted on 12/11/2020 1:56:18 PM PST by SkyDancer (~ Pilots: Looking Down On People Since 1903 ~)
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To: nickcarraway

To think, all he had to do was wait a few years and write his notes in cursive, and no-one would be able to decode them. :P


26 posted on 12/11/2020 1:58:08 PM PST by Kommodor (Make America Detroit Again - Vote Democrat! :P)
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To: nickcarraway

Well, at least we know where Joe Biden was for 47 years, even if he still doesn’t and he does seem to require a cipher key to figure out what the heck he just said.

Like DB Cooper, Amelia Airhurt and Alec Baldwin, we’ll just have to keep looking into the mysteries they left behind.


27 posted on 12/11/2020 2:02:32 PM PST by NormsRevenge (Semper Fi - Monthly Donors Rock!!! Help beat the leftist media at their own game.)
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To: nickcarraway

Ted’s dad was the zodiac killer - not ted. SMH


28 posted on 12/11/2020 2:10:19 PM PST by aMorePerfectUnion (I'd rather be anecdotally alive than scientifically dead... )
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29 posted on 12/11/2020 2:24:55 PM PST by proust (Justice delayed is injustice.)
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To: bunkerhill7
 
 
Yes interesting since he made sure to say more than just once.
 
 

30 posted on 12/11/2020 2:38:37 PM PST by lapsus calami (What's that stink? Code Pink ! ! And their buddy Murtha, too!)
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To: nickcarraway

Did they decipher all the characters, or just decipher some and say the rest was junk thrown in for the heck of it? That was what the History Channel “experts” did.


31 posted on 12/11/2020 2:45:42 PM PST by x
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To: Persevero

After doing a bit of digging, it looks like I might have been thinking of Z13 where the only code is after the words ‘My name is.....’ that has had numerous suggestions. One of which is Alfred E. Neuman.


32 posted on 12/11/2020 2:50:22 PM PST by Spirit of Liberty (It's morning in America again!)
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To: teeman8r

Sounds like the devil to me from this part:

“I NOW HAVE ENOUGH SLAVES TO WORK FOR ME WHERE EVERYONE ELSE HAS NOTHING WHEN THEY REACH PARADICE SO THEY ARE AFRAID OF DEATH I AM NOT AFRAID BECAUSE I KNOW THAT MY NEW LIFE IS LIFE WILL BE AN EASY ONE IN PARADICE DEATH”

Just what I thought of when I read it.


33 posted on 12/11/2020 3:09:50 PM PST by funfan
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To: nickcarraway

The Paradice Motel is one mile from Sahara Tahoe ...Donna Lass was a nurse at Sahara Tahoe....


34 posted on 12/11/2020 4:27:46 PM PST by bunkerhill7 (That`s 464 people per square foot! Is this corrrect?? It's NYC.)
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To: Yo-Yo

“Don’t forget to drink your Ovaltine? Son of a ...” 🤭😂


35 posted on 12/12/2020 2:15:45 AM PST by snarkytart
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To: proust

Okay, Ted can get it at times lol. Troll on, Cruz.


36 posted on 12/12/2020 2:17:31 AM PST by snarkytart
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To: nickcarraway

I HOPE YOU ARE HAVING LOTS OF FUN IN TRYING TO CATCH ME THAT WASNT ME ON THE TV SHOW WHICH BRINGS UP A POINT ABOUT ME I AM NOT AFRAID OF THE GAS CHAMBER BECAUSE IT WILL SEND ME TO PARADICE ALL THE SOONER BECAUSE I NOW HAVE ENOUGH SLAVES TO WORK FOR ME WHERE EVERYONE ELSE HAS NOTHING WHEN THEY REACH PARADICE SO THEY ARE AFRAID OF DEATH I AM NOT AFRAID BECAUSE I KNOW THAT MY NEW LIFE IS LIFE WILL BE AN EASY ONE IN PARADICE DEATH.
.
.
.

🤔
Are they SURE?
The shhhhh makes zero sense.


37 posted on 12/12/2020 2:20:32 AM PST by snarkytart
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To: nickcarraway
I have not looked into suspects but I did read a list of the main ones and who and why they were ruled out. One not ruled out is this one: ROSS SULLIVAN Why Suspected:  The 1966 murder of Cheri Jo Bates in Riverside, Ca. bore many similarities to the Zodiac killings. Staffers at the Riverside City College library, near where Bates’s body was found, said a coworker, Ross Sullivan, had made them uncomfortable and disappeared for several days after the murder. Sullivan also sported a crew cut and glasses similar to the composite sketch of the Zodiac. He moved to northern California in 1967 and was hospitalized several times for bipolar disorder and schizophrenia. "Sullivan wore an Army jacket and military-style boots like those that left footprints at the Lake Berryessa stabbings. Zodiac buffs also note that his letters mention “The Mikado,” by Gilbert and Sullivan, which could be a reference to Sullivan’s name". https://www.history.com/news/could-any-of-these-men-have-been-the-zodiac-killer Guy looks just like the sketch.
38 posted on 12/12/2020 11:45:36 AM PST by Beowulf9
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To: lapsus calami

This was also analyzed by another researcher in 2011. Google zodiac victims.


39 posted on 12/13/2020 8:48:41 AM PST by bunkerhill7 (That`s 464 people per square foot! Is this corrrect?? It's NYC.)
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https://www.freerepublic.com/focus/news/3915700/posts

“The Most Dangerous Animal of All” asks what if your dad was the Zodiac Killer?
Producers spoke to Salon about eschewing the sensational for FX’s first foray into documentaries
By ASHLIE D. STEVENS
MARCH 8, 2020 3:00PM (UTC)
https://www.salon.com/2020/03/08/most-dangerous-animal-of-all-zodiac-killer/


40 posted on 12/28/2020 7:44:02 AM PST by SunkenCiv (Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)
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