ZODIAC CIPHERS
Richard Grinell, Coventry, England
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THE "CIPHER KILLER"

11/15/2019

 
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Many Zodiac enthusiasts have pondered from where did the Zodiac Killer acquire his pseudonym, or when he decided upon the name Zodiac. The Bay Area murderer arrived at Lake Herman Road on December 20th 1968, where he callously executed David Faraday and Betty Lou Jensen with six shots to the head and body. Just over seven months later, on July 31st 1969, he mailed three pieces of correspondence to the San Francisco Chronicle, San Francisco Examiner and Vallejo Times-Herald, but failed to introduce himself as Zodiac despite having over half a year to formulate a pseudonym. He only introduced himself as the "killer" and "murderer".

Three letters, detailing his crimes and awash with cryptograms, announcing his arrival to the newspapers, seemed like the perfect opportunity to announce those infamous words of "This is the Zodiac speaking" - yet nothing. His next communication was only sent in response to Vallejo Police Chief Jack E. Stiltz, who doubted the letter writer and killer were the same person and "urged the writer yesterday to send more letters with more facts to prove his connection with the crimes". The Bay Area murderer immediately replied on August 4th 1969, stating "This is the Zodiac speaking. In answer to your asking for more details about the good times I have had in Vallejo, I shall be very happy to supply even more material". It can be seen that this letter would never have been sent, had Vallejo Police Chief Jack E. Stiltz not urged the killer to do so. If the letter had not been sent, then our killer would not have presented himself as Zodiac on August 4th 1969. In fact, he may not have adopted the pseudonym at all.

In absence of this letter, the next letter to contain his pseudonym was mailed two days after the Paul Stine murder on October 13th 1969. So, it's entirely plausible that the muderer of five could have begun and ended his attacks in the Bay Area as a nameless killer. The Vallejo News Chronicle published one-third of his 408 Cipher on August 1st 1969, the San Francisco Chronicle did the same on August 2nd 1969, with the San Francisco Examiner waiting until August 3rd 1969 and publishing all three parts, but on a lowly page nine. All three carried the message from Vallejo Police Chief Jack E. Stiltz, yet despite the Examiner publishing their part of the cipher the latest and relegating it further from the front page than the other publications, in defiance of his demands for front page coverage by Friday afternoon, it was the Examiner he chose to introduce his pseudonym to. In other words, they complied the least, but the killer chose to "supply more details" to them rather than a Vallejo publication and to the home city of Vallejo Police Chief Jack E. Stiltz, who he was supposedly addressing.

There is a real possibility that the murderer of three chose the San Francisco Examiner because they were the only publication to give the murderer a pseudonym, which may have ultimately triggered the following communication a day later. The Examiner wrote "The police telephone system was clogged by anxious callers asking if the "cipher killer" had been caught". The murderer seemingly didn't appreciate the pseudonym given to him and a day later, on August 4th 1969, he introduced himself to the Bay Area with "This is the Zodiac speaking". But why this phrase? The Examiner article noted that "the police telephone system was clogged by anxious callers asking if the "cipher killer" had been caught", so what better way to announce yourself as you might do over the telephone. This wasn't an anxious caller, this was the Zodiac speaking.  

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Without this San Francisco Examiner article and resultant Debut of Zodiac Letter on August 4th - announcing yourself as the "Zodiac" on October 13th 1969 after the end of a ten month series of murders, certainly wouldn't have had the same impact. Without the publication of "cipher killer", the pseudonym of the Zodiac Killer would in all probability never have existed.

The counter-argument to the above, is the killer had ample time to give himself a pseudonym from December 20th 1968 to July 31st 1969, and only began the trinity of letters with "murderer" and "killer" because he had reserved the pseudonym "Zodiac" for the 18 characters at the foot of the Chronicle cipher. This was the portion he claimed held his "identity". A hidden pseudonym would be negated had he began the correspondence with "This is the Zodiac speaking". With the entirety of his communications beginning with this phrase, does it lend credence to the notion its absence from the introduction to these three letters, is validation to its concealment in the 18 unsolved characters?  If he hadn't preselected his pseudonym in advance of the July 31st 1969 letters, one could revert back to the notion it was the "cipher killer" attribution that triggered his reply on August 4th 1969. For 35 years starting in 1965, the San Francisco Chronicle and Examiner operated under a Joint Operating Agreement whereby the Chronicle published a morning paper and the Examiner published in the afternoon. The Examiner published the Sunday paper's news sections and glossy magazine, and the Chronicle contributed the features. Circulation was approximately 100,000 on weekdays and 500,000 on Sundays. By 1995, discussion was already brewing in print media about the possible shuttering of the Examiner due to low circulation and an extremely disadvantageous revenue sharing agreement for the Chronicle. Wikipedia. The Bay Area murderer's reply on August 4th, including his pseudonym for the first time, would therefore have been formulated in the mind of the killer from the moment he read the Sunday Examiner publication to his creation of the letter. The Zodiac Killer being born on August 3rd 1969, or early Monday morning on the fourth.
   
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However, if he had decided upon his pseudonym in advance of the July 31st 1969 letters and had consciously withheld his pseudonym from his introduction so as to place it within the 18 unsolved characters - then having failed to do so - would be counterintuitive. One could argue that his use of the words "killer" and "murderer" were chosen for purpose, thereby lending credence to a viable solution with respect to the 18 unsolved characters. 

The 18 unsolved characters (if they contain any meaning whatsoever) clearly operate under a different technique of decryption to the other 390 characters. So if the Zodiac Killer didn't happen upon his pseudonym on August 3rd or 4th, then we have the very real possibility that the identity of "Zodiac" does reside in these final 18 characters, to which he alluded to in his address to Vallejo Police Chief Jack E. Stiltz on August 4th 1969. The Zodiac Killer stated "when they do crack it, they will have me".

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Mo
11/16/2019 08:58:55 am

Excellent analysis as always Richard.

While the killer did not adopt the Zodiac title until August 1969, he did include the crosshairs symbol in his earlier letters after the BRS attack at the end of July 1969 (about a week earlier).

So, he may have been in the process of developing his new persona.

Also, where else is the word “Zodiac” associated with the crosshairs symbol? The only other instance that I know of is the Zodiac watch, which was being sold at the time.

Richard
11/16/2019 09:46:01 am

Cheers Mo. There is a loose connection to the style of the Zodiac wheel, but not particularly crosshairs. We know Zodiac didn't utter his pseudonym on July 5th 1969, but that doesn't tell us much because he didn't during the Napa payphone call or the Berryessa attack. If the Zodiac watch and crosshairs were definitely the inspiration, then it's no coincidence that he supplied us with the crosshairs on July 31st 1969 and followed up four days later with the word "Zodiac". As you intimate, that would mean he already had "Zodiac" in his mind on July 31st 1969 when he mailed the trinity of letters. That would indicate that his choice of "killer" and "murderer" to begin his communications was a deliberate decision. The question would then be, was the crosshairs symbol a clue to the name Zodiac, and was the name "Zodiac" therefore concealed in the last 18 characters of the Chronicle letter in which he promised us his identity. If the Zodiac was inspired by the watch, then this could be a real possibility. The idea you gave is definitely food for thought, because it would mean the Zodiac only gave us one half of his identity, concealing the other half at the foot of the 408 cipher. Otherwise, he may as well have begun his trinity of letters with "This is the Zodiac speaking. I killed the 2 teenagers last Christmass at Lake Herman + the girl on the 4th of July near the golf course in Vallejo" - but he didn't. Thanks Mo, that has created another interesting possibility. The only other place where Zodiac and near crosshairs exist is the Zodiac car. But the intersesting lines don't breach the circumference. They look similar, but not an exact match.

https://i.imgur.com/oBjPVxX.jpg

Roger
11/17/2019 06:11:58 pm

I think we have to look at the social milieu. It was the late 60s, hippies were into ideas of astrology and ancient mysticism. It was everywhere to be seen in the popular culture and the street art. LSD and pot apparently had the power to free your mind and send you off on a cosmic trip to find your own self. For my money, I'd be willing to bet he just thought it sounded "cool" and "hip" and "modern". We notice that he then tries to incorporate various themes and concepts as if to give meaning to his own place in space and time, much of which was more fantasy than reality.

Richard
11/18/2019 05:39:14 am

Hence the "Cancer" and "Leo" communications, seemingly incorporating an element of astrology and a mind-bending word puzzle.

JD
11/16/2019 09:03:29 pm

It is interesting that both the car and the watch used a similar symbol. Maybe both were an inspiration, affirming the idea in his mind. I agree that he probably already had the name Zodiac picked out and was deliberately holding back, opting to first establish that he was the killer they were looking for, then providing the moniker.

I see they cracked a cold case from 1979 and arrested Charles Gary Sullivan. Too young for Zodiac, but a particular nasty character that should have been put away a long, long time ago. Can't wait to see everything they connect this character with, and possibly a good comparison for how Zodiac possibly operated. The victim they nailed him on was last seen at San Fran Airport in 1979 as she was leaving for Reno. She was going to look for jobs in Reno and Lake Tahoe. They found her body in Hungry Valley's Eagle Canyon, which I believe is north of Sparks, Nevada. In 2007 he kidnapped a girl from Eureka, Ca. Only got 3 years 8 mos for that. They suspect him of many more murders.

Richard
11/17/2019 12:19:42 am

I'll ask you this JD - let's assume he had his pseudonym already and was holding it back, do you believe that the fact he provided us with 18 unsolved characters in a cipher that he claimed held his identity, strengthens the possibility they could contain his pseudonym. Zodiac liked playing games and creating puzzles, but providing 18 meaningless characters with no solution whatsoever seemed a wasted opportunity for "a bit of fun" on his part. I have been looking at each block of six characters in order to find a decryption technique other than routine substitution, that may create the word "Zodiac" with no luck so far.

JD
11/17/2019 02:52:19 am

Hi Richard. I believe the last 18 were more than filler and have meaning. Perhaps something that we haven't stumbled onto yet. The jumbled series of letters as revealed EBEORIETEMETHHPITI may be correct, but need some adjustment due to spelling errors within the previous message. Maybe there are additional letters to be added to the 18, though don't ask me where we would find those specific letters. Maybe a shift in letters is in order.

I do find it interesting that when you read the line aloud you get a stupid rhyme -- at least in the beginning: "E B Or I ETE (eat) Me...
I suppose you would call that a Rohrshach Test using words and letters instead of inkblots.

It would be interesting if further analysis found "The Zodiac," which is a very good suggestion. I also like "Robert Emmet the Hippie." Another idea is letter groupings: EBOR exists in Canada and Australia and IETE (Institute of Electronics and Telecommunication Engineers) was formed in 1953, but I hope no one thinks I am seriously suggesting such an answer. There are so many ways to look at it. It's always clear to the person making the cipher.

But, yes, "Zodiac" would make the most sense and could very well be the answer. Quite logical. If that is the case, he must have been profoundly upset that it was not discovered. It's funny, I was going through some more notes and found a cipher I had worked on a number of years ago, unrelated to Zodiac. I got it out of one of those Shadow Magazine's I mentioned. The name of the cipher escapes me right now, but it requires a column and row of numbers to keep it all separated, and on this particular sheet of paper I had drawn a box around the numbers to keep it from all blending together. I looked at what I had and I was looking at a boxed cross, like you used around "paradise" and "slaves" in your 08/10/19 article. I wondered if the cross formed by Paradise and Slaves could be used in place of numbers, to represent rows and columns, and the last eighteen letters is a singled out phrase that requires a different cipher solution such as the one I had messed around with. I don't even remember how the cipher works at this moment, so I'm not even sure that particular cipher would work in that fashion. And then there is the puzzling bit with By Rope, etc. in each quadrant, and how one would interpret that in working it with such a cipher. But perhaps the last 18 is meant to worked out separately using another cipher approach. Perhaps that would give you "The Zodiac?"



JD
11/17/2019 04:22:04 am

I found what I had been working on. Triple Square Cipher. Here is a link:

http://www.cryptogram.org/downloads/aca.info/ciphers/TriSquare.pdf

This one doesn't use an example with the cross numbers for each row and column, but if you extend the black line up and to the left you get the picture of where the cross formation is. Also, just as an example, take the last 18 letters of CT count, and instead of PT: "Three Key Squares" etc. put in Zodiac killer.

pt: Z O D I A C K I L L E R
CT: RHL QXR LXO EVZ BAT XSE

Now, I'm not saying the Triple Square can be used to solve something like this, but I imagine he could do this using a cipher formula of his own, or something like the Triple Square. I have no idea what I'm doing so it makes perfect sense to me.

Richard
11/17/2019 05:15:14 am

I guess JD this goes to show how many variables we are dealing with here - the Triple Square Cipher being one. But because of the extensive vowels used in the 408 (9 of 18), it's very likely a standard interpretation is extremely unlikely and some other technique such as this is a real possibility. There are too many cipher techniques to count, including ones the Zodiac could have made on the fly. The problem we have, is if Zodiac created something so obscure with little chance of anybody ever solving it (which has been the case for 50 years), then giving no chance to the solver defeats the object and negates the element of fun for Zodiac. One would like to think he dropped us a clue in later communications. The 18 unsolved characters do show extensive mirroring - EBE, ETE, EME, HH and ITI. Almost as though this plaintext solution was created deliberately for purpose. The ciphertext in the 13 symbol cipher exhibited this mirroring design in it creation. But certainly something akin to the Triple Square that provides an imbalance of vowels and consonants (as shown by the 18 characters) is worthy of consideration. I always thought the clue may be in the August 4th letter - after all, if he did hide the word Zodiac in the 18 characters, the "cipher killer" attribution (that he didn't appreciate) may have forced his hand in releasing his hidden pseudonym earlier than he would have liked.

JD
11/17/2019 04:24:51 am

I see it messed up my message when I sent it. Looking how it is formed in the link I sent: ZO goes with RHL, DI with QXR, AC with LXO, KI with EVZ, LL with BAT, and ER with XSE.

JD
11/17/2019 11:13:04 am

Yeah, that's the problem. It could be something he created, perhaps based on something like the triple square, that works perfectly because he understands the reasoning behind the solution.

It would be interesting if the symbols used in the unsolved 340 were all accounted for in the 408. You would then have all letters in the 340 instead of a mix of symbols and letters. Then, instead of one keyword phrase used to make your Triple Square, he used "By Knife" as a keyword for one quadrant, "By Rope" as a keyword for a second quadrant, and so on. You would have 4 distinct quadrants.

JD
11/17/2019 11:49:57 am

I suppose if he did something like that, each quadrant could contain the name of a victim previously unknown, who died as a result of given weapon. By Gun, By Knife, By Rope, By Fire.

Richard
11/17/2019 12:39:40 pm

When Zodiac designed the 340 cipher, he had used a gun, knife and rope in his four attacks. Strange then, that his following crime (possibly) involved the use of fire. The question being, had Zodiac intended to burn Kathleen Johns alive originally? Not a palatable thought, but the clockwise sequence on the yet to be mailed Halloween Card (that may have been mimicked in the Fairfield Letter and 340 cipher) placed the weapons in the order he used them. Gun at LHR and BRS, rope then knife at Berryessa, and fire in Modesto.

Richard
11/17/2019 12:59:45 pm

"I suppose if he did something like that, each quadrant could contain the name of a victim previously unknown, who died as a result of given weapon. By Gun, By Knife, By Rope, By Fire". That would be very sinister!

Roger
11/17/2019 06:19:34 pm

Yes, I think he was basically replicating the order of his (intended?) use of weapons. The quadrants around the cross were basically a representation of his fantasy base rather than showing real locations for crimes.

Richard
11/18/2019 05:35:47 am

Do you think his use of fire was intended to be more sinister? He ramped up the shock value at Berryessa, and got more daring in the built-up city of San Francisco. If Kathleen Johns was a Zodiac crime (which I have my doubts) then a countryside drive for 90-120 minutes doesn't really seem like progression - unless of course, his ultimate plans were thwarted.

Roger
11/18/2019 06:17:51 am

It is possible the Kathleen Johns incident was the Zodiac. Perhaps this was just another way he had found, possibly on the spur of the moment, to taunt the authorities. Or maybe he was just having some fun that night and wanted to gloat over the incident when it hit the papers. Then again maybe it was somebody else who just happened to look like that police sketch. We have to admit, there were only a few million men from that time and place who looked like that sketch, hence the huge number of suspects. I always get the feeling the fact that she had a very young child with her might have thrown off her attacker. He did seem like he might have been in two minds so just ended up driving around all over the place thinking what to do next. It is impossible to know what he might have ended up doing. Maybe setting fire to the car was simply to cover up any prints he might have left on her car by accident. He may have gone back to her car to search her car to see if he could find out more about her. There are many possible reasons.

JD
11/17/2019 05:17:07 pm

The Kathleen Johns episode puzzles me. By all appearances, in his other crimes he acted rather swiftly once he engaged his victims. Here he drives her and her child around for a lengthy period of time and doesn't pursue her when she ditches. The presence of the child could have created a conflict for him for some particular reason. I personally can't see him conflicted by the age of any victim, but it's still possible.

If it really was Zodiac, perhaps he was playing a different game, intending all along to let her go. Looking at the Paul Stine murder, he took his sweet time cutting off part of his shirt, wiping down the cab, walking the route he did. Perhaps by letting her go he was adding a new level of excitement to his game, flirting with getting caught. "I just spent time with a potential victim. She saw my face, saw my car, rode in my car, spoke with me, and still you can't get any closer to catching me." Or maybe she met up with another lunatic that night.

That said, you bring up a very good point. Each Zodiac victim met his and her fate by the named weapon. It's not like he went around damaging victim's vehicles with knives, ropes and guns. (Indirectly perhaps). He attacked individuals. So why burn a car? Did he intend to take her back to her car all along? "See, this is what could have happened to you if you hadn't jumped out of my vehicle."

Roger
11/17/2019 06:03:18 pm

Why is a question that probably has no answer. I bet it seemed like an eternity the time he spent with Bryan and Cecelia. Predators often find different ways to play with their prey. Sometimes they kill swiftly, other times they drag out the ordeal. Other times they don't kill at all, they just torment as if for sport or practice. Why? I don't know. They just do.

JD
11/17/2019 10:50:21 pm

So I was intrigued and messed around with a four square cipher. Hope you don't mind my taking the liberty of posting some absolutely meaningless results. I used para dise and sla ves in the middle cross formation, using an "x" as a null separating the words in half for symmetry. Clockwise, the first quadrant reads "Zodiac By Fire," second quadrant "Zodiac By Gun," "Killer By Rope," and fourth "Killer Knife." I left out the word "By" in the last in order to achieve a proper fit without leaving out any letters. It'll probably look like a giant mess after I send it.

Y P A L X P U
I K A E I G A
D W I Q I W G
F U B B R L X
Q N A X V C U
C K G D I K L
L Y U I L B U
H P F U E W T
I C Z C M O E

Also Lawrence Kane Zodiac

H A V R D P A C C E N C X P I I D A

Joseph J Gaikowski

T G C A B Q D I F B K I M Y U H H Y

BB
2/18/2020 05:23:04 pm

ALFREDENEUMAN

MAD Magazine Mascot

z13 - This cipher killer is not going to leave his real name

A couple years after the first MAD magazine came out
Cracked - the rival to MAD magazine came out.
This killer guy we seek - was a prankster.

Roger
2/18/2020 06:22:22 pm

You could be right on the money there BB! The author Craig Bauer proposed this as a possible crack of the Z13 cipher in 2017 and he credits p.128 of Robert Graysmith’s (2002) “Zodiac Unmasked. However Graysmith does not take credit for it, but implies that this "solve" is one that had been around for a long time. The N shares F and M, which is the only foul point against it. This does seem like the kind of prank the Zodiac would pull.

BB
2/19/2020 10:44:04 am

It might be just another possibility. Thanks for referencing that for me though.I often forget. I take it for granted that because I think it must be clear I am not out for notoriety. That I don't feel the need to do so. After all, I don't proclaim any Idea as my own. Nor do I stay locked on a particular suspect. And, since I am shy - I don't put my name out there. My only interest is to learn and share what I think I have learned. You and Richard and everybody here have also taught me a lot about myself. And for that I am forever thankful. Peace

BB
2/20/2020 09:01:58 am

Earl Van Best Jr = 13

I realize he has been eliminated by detectives both private and public.
But, this YouTube video makes many good points that the ciphers are
word puzzles.

ZO in the 340 and 408 Ciphers and who the Ciphers say Zodaic is

https://www.youtube.com/watch?v=0wlJizcv7Lo

BB
2/22/2020 10:16:08 am

The Best videos on the ciphers as word puzzles

https://www.youtube.com/watch?v=ykWDbG-7fFA

https://www.youtube.com/watch?v=ZyAF8R4IjtQ

https://www.youtube.com/watch?v=-xM63OljeKg

https://www.youtube.com/watch?v=RxVw0qlp9lo

https://www.youtube.com/watch?v=Dogqc9uYdSA

https://www.youtube.com/watch?v=wV_1raQ6IWg

https://www.youtube.com/watch?v=7c_QJlmRyP0

Roger
2/22/2020 04:46:07 pm

The sheer number of videos shows just how variable the results can be.

Which one do you consider to be the most correct BB?

BB
2/22/2020 06:08:06 pm

That is above my pay-grade.
Best Wishes
( e-van best jr. )
The best part of it is that when I die I will be reborn in a parad ice-creme romance.


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    The Zodiac Killer may have given us the answer almost word-for-word when he wrote PS. The Mt. Diablo Code concerns Radians & # inches along the radians. The code solution identified was Estimate: Four Radians and Five Inches To read more, click the image.
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    The Zodiac Atlas: The Zodiac Killer Enigma by Randall Scott Clemons. Click image for details.
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    The Zodiac Killer Map: Part of the Zodiac Killer Enigma by Randall Scott Clemons. Click image for color version
    For black and white issue..
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Photos used under Creative Commons from Marcin Wichary, zAppledot, vyusseem, Alex Barth, Alan Cleaver, jocelynsart, Richard Perry, taberandrew, eschipul, MrJamesAckerley