He dared to reveal all in the 408 Cipher, but failed to deliver on that promise, he flattered to deceive in the Halloween Card, when he chose a card with the words 'You ache to know my name,' and again in the 'My Name is.....Cipher', to yet again leave us disappointed, OR DID HE.
Every genuine cipher can be decoded, if only you can get into the mind of its orchestrator, in this case into the mind of a killer.
It is well chronicled that the Zodiac was an attention addict, and it may well be the case that the ruthless killer who stalked the San Francisco Bay Area in the late 1960's gave us a small glimpse of what was about to come, in the symmetry he encoded within this cipher.
In a later article this is taken one step further, to possibly reveal the actual name he placed within the cipher, and in true Zodiac style, it again showed his ability to taunt the police, newspapers and more importantly the victims families, to whom he left utter devastation in his wake. See follow up article: 'The Name on the 13 Symbol Cipher'.
In previous Zodiac theories on this site it was proposed that the Zodiac Killer selected his attacks based upon the 13 Moon Calendar and the number 13 in particular, but here we will extend this and attempt to decode the 'My Name is Cipher' using simple mathematics and the number 13, to show that the cipher is number specific and a perfect mirror image in its design.
The Zodiac was not a master cryptologist, as the 408 cipher showed, and there every chance his small ciphers took little effort either, but as with all ciphers the problem is finding the key........so here goes.
The 'My Name is Cipher' has 13 symbols, we assume to be running from left to right, half of the alphabet, so let's represent each symbol or letter in the code with the letters of the alphabet, A through to M. Then where possible, simply count the nearest difference numerically between the letters in each column of two. But take the circled 8 symbol as the letter H
(being the 8th letter of the alphabet), to arrive at this numerical derivative. Note the organized pattern. see below.
Many people believe this cipher to possibly reveal the killer's name, so lets use the second column to complete his name in the original code, as shown below by the highlighted green box.
The columns add up to 3, 3, 2, 2, 3, 3, 6, 6 and the sum total of each row is 14.
In the 13 Moon Calendar article it was proposed the killer selected his victims by date and in the text on the 'My Name is Cipher' letter the Zodiac again states "I have killed ten people to date", it just depends how you read it. As he did on the 'Little List' letter, when on the 13th line of his Mikado recital he used the words "Are up in dates".
But what is the killer's name.
We know that the above solution puts in both instances A and M at the beginning and end of the code.
The above solution puts the F above K, to herald FK I'm crackproof.
We also know that the Zodiac filled his 340 cipher with many symbols that were mirrored, to produce a reverse symbol, and if the 13 Hole Postcard and Pines card were genuine Zodiac correspondences, they again provided examples of flipped text.
And with a fair degree of certainty, this cipher has an answer, as the symmetry can be seen, even before the final two steps.
But whether it is actually his name or just another one of his taunts, is still open to question.
The Zodiac failed to deliver his name in the 408 cipher, but he did deliver something, and one can see no reason for this cipher not having a solution also. It just may not be the one we are looking for.
If indeed the X's were replaced with the same number, in the example below, by the figure 0, as these columns were unable to generate any difference numerically, we would end up with this result.
FOLLOW UP ARTICLE http://www.zodiacciphers.com/zodiac-news/the-mathematics-of-the-13-symbol-cipher