New Zodiac Killer Cipher Website

Over the years, Dave Oranchak has done some great research into the Zodiac Killer's ciphers. He's created two popular cipher analysis web applications (webtoy and cryptoscope) and collected a wealth of information related to the ciphers of the Zodiac Killer.

Recently, he started a new website that provides analysis and discussion regarding the ciphers of the world's most enigmatic serial killer, as well as consolidated access to Dave's previous contributions. The new website is:

If you're at all interested in the Zodiac Killer's ciphers, I encourage you to check it out and spend some time in the various parts of the site. Based on his previous work, he's already got quite an impressive collection of content. And as we move forward, I'm sure he'll continue to add to the collection in interesting and meaningful ways.

Michael Cole


  1. Dave 5 June, 2012 at 05:31 Reply

    Thanks for this post, Mike!

    Hopefully the new site won’t be too “cryptography heavy” to scare away casual visitors. 🙂

    • Mike 5 June, 2012 at 07:08

      You’re welcome. I’m glad you’re continuing to fight the good fight with the ciphers. Maybe one of these days, someone among us will discover that elusive critical insight and break the damn 340!!

  2. braden 6 June, 2012 at 08:57 Reply

    H A C S C F R M T G K B J X K X H H X D P S N C M
    ” F C R J C R M M U X X K C U : H A C N X U P R W D P M M C J ” P Q R K R Q H C J I P C W C X B W X K I X Q P H P X S R S U F J P H H P S L . H A C K G Q P W I J C Q C S H C U P S H A P Q J C W X J U K R D C Q Z X G P H W A , K R D C Q Z X G Q W J C R K R S U K R D C Q Z X G B C C M .

    can you help me figure out the cypher. it is a review on a musicians album.Thanks!

    • Mike 6 June, 2012 at 09:22

      I can’t really help you out there, except to say that the quotes and the ‘:’ appear to be significant clues.

      Good luck…

    • Mike 7 June, 2012 at 00:47

      I ran the cipher through CipherExplorer; here’s what I came up with:


      As you can see, G Gluckman was exactly right. And in true Zodiac fashion, the solution has a spelling mistake…

      Hope this helps.

  3. ggluckman 6 June, 2012 at 13:31 Reply


    Maybe this will get you started:

    H A C S C F R M T G K B J X K X H H X D P S N C M
    ” w e a r e a l l d o o m e d : t h e z o d i a c k i l l e r” P Q R K R Q H C J I P C W C X B W X K I X Q P H P X S R S U F J P H H P S L . H A C K G Q P W I J C Q C S H C U P S H A P Q J C W X J U K R D C Q Z X G P H W A , K R D C Q Z X G Q W J C R K R S U K R D C Q Z X G B C C M .

    Have fun. Hope you catch him.


  4. G Gluckman 7 June, 2012 at 03:57 Reply

    Hot dang, Mike!! You’ve cracked it. This is the biggest beak in the case in over 4 decades!

    I had wondered if this could be authentic. Notice how the itching and screaming reference resonates with the “little list” letter. I’d like to know Dave-O’s opinion, but I’m convinced.

    So, Braden, does your Otto Kinzel POI have a middle name? Three letters, maybe

    Damnation! Who’d a thunk it was all about the music all this time?


    • Mike 7 June, 2012 at 22:23

      Yeah, I was hoping to see ‘twich’ in the solution; it’s the one word that I suspect the killer may have unintentionally misspelled. But, no such luck.

      Anyway, that was a good bit of fun. BTW, how did you figure out the quoted part without the benefit of a cipher-solving tool?

    • G Gluckman 8 June, 2012 at 04:22

      Well, I used the most advanced cipher breaking techniques you can imagine. It’s pretty technical.

      I googled the cipher itself. That led to a website that was promoting Otto K’s new album with a cipher challege. Embedded in the cipher challenge was the album title, complete with quotes.

      (I wonder why nobody thought of using the same technique back in the 60’s and 70’s.)


      G “Googleheimer” Gluckman

    • Mike 8 June, 2012 at 07:00

      Google to the rescue, once again. Well done.

      Somehow, I’m starting to feel like we should be charging Otto for our services…

  5. 340newbie 1 August, 2012 at 15:54 Reply

    That last post did not take. I got this at Is it really this accurate?

    her>9 LAvpKi 0ltg )D
    folle i e f -t- wd i liv li
    Folly, I left two. I live li


    n9 [email protected] wy.) d1
    egle i iish it will go
    eagle. I wish. It will go
    glee. I wish it will go

    2!+k [email protected] J )u Cxg v.Zli
    woki rn a ln gov feild
    work in a ** gov. field.


    1g)jFR 2o+5 nyZ +4l%
    ovleds wike foi kilr
    Solved wife for killer.


    D <m+B +zr)fbC YaO*k
    i like killing go-d-o-i
    I like killing. God, do I


    -ZLu v+Aj +o93<fbY-
    siin fkee kiellings
    sin? Free killings!

Leave a reply