FBI asks public for help breaking encrypted notes tied to 1999 murder - Polidicks

I am definitely going to lose sleep over this thread

[QUOTE=Decay;28887065]I am definitely going to lose sleep over this thread[/QUOTE] what if wld is would?

Where's the other page?

[QUOTE=tmcnutt;28887157]what if wld is would?[/QUOTE] Can't be. If we assume things that aren't letters or numbers have the same meaning as in standard English, "WLD'S" makes WLD a noun.

Are we using any ciphers here? Maybe some kind of Autokey cipher?

where it says N T E G D D he is making one of the d's look like an O instead, so maybe he is mentioning god? he could have his own "made up" religious beliefs, so maybe he is talking about his "god"?

Has it dawned on anyone that this guy was dubbed the Zodiac killer? Maybe these notes have some Greek in them. Maybe there are helpful hints in an article for Zodiac signs. [url]http://en.wikipedia.org/wiki/Zodiac[/url]

[QUOTE=Master117;28887337]Has it dawned on anyone that this guy was dubbed the Zodiac killer? Maybe these notes have some Greek in them. Maybe there are helpful hints in an article for Zodiac signs. [url]http://en.wikipedia.org/wiki/Zodiac[/url][/QUOTE] Different guy; the murders are quite similar, but there's a twenty year difference.

just a wild guess but maybe ( N O P F L S R E N C B E ) N T E G D D m C U R E R could mean (nope flourence be) send god a curer N T E could possibly mean send just a wild guess though.

[QUOTE=Master117;28887337]Has it dawned on anyone that this guy was dubbed the Zodiac killer? Maybe these notes have some Greek in them. Maybe there are helpful hints in an article for Zodiac signs. [url]http://en.wikipedia.org/wiki/Zodiac[/url][/QUOTE] Remember that it was the victim who wrote these letters, not the murderer. I'm trying to find the link that stated this. edit: [url]http://www.fbi.gov/news/stories/2011/march/cryptanalysis_032911[/url]

[QUOTE=Decay;28887392]Remember that it was the victim who wrote these letters, not the murderer. I'm trying to find the link that stated this.[/QUOTE] Its a guess that the victim wrote the letters, but it seems that this is unlike any kind of encryption the victim has ever done or made. If we could get a kind of handwriting sample of the victim, and compare it to the coded text, maybe then it could be concluded, but at this point...

If he used this scheme since he was a kid shouldn't he have many more notes?

[QUOTE=vizard38;28887431]Its a guess that the victim wrote the letters, but it seems that this is unlike any kind of encryption the victim has ever done or made. If we could get a kind of handwriting sample of the victim, and compare it to the coded text, maybe then it could be concluded, but at this point...[/QUOTE] The FBI website says the victim had wrote these encrypted notes his whole life.

Why the fuck would anyone write encrypted messages his whole life? He should've worked for the FBI..

[QUOTE=Stickmoose;28887478]The FBI website says the victim had wrote these encrypted notes his whole life.[/QUOTE] -snip- nvm

This thread is all like. [img]http://nannahelsen.blogg.se/images/2009/a20beautiful20mind_0_45508874.jpg[/img]

we really need that boy with an IQ of 170 it would benefit a lot

[img]http://i49.tinypic.com/21onexz.gif[/img] [highlight](User was banned for this post ("Why reply?/Image macro" - Starpluck))[/highlight]

Anon is getting on to decoding this pretty soon [quote=anon]Well, /b/, I'm going to bed. For anyone still working on this, here's my final thoughts: I believe that he started with a substitution cipher. This explains differences in character frequencies from English to his ciphertext. However since E is most common in his ciphertext, E maps to E I believe he then re-arranged the letters in some way. However since spaces were removed from the ciphertext, the letters must have been re-arranged in a methodical way that would allow you to reconstruct the original line despite not having word-breaks. This means that the word "HELLO" could not have been permuted safely to "HOELL" (inside-out word) since "HELLOMYNAMEISBOB" would then become "HOELLMYNEAMISBBO". Without the spaces, and not knowing where one word started, you could not re-organize this properly. More likely letters were shifted or something similar (HELLOMYNAMEISBOB -> HLOYAESOELMNMIBB). This permutes entire lines at a time. He may also have permuted entire paragraphs or similar. However this kind of re-arranged explains why simple frequency and brute-force attacks didn't work, and why it can't be solved mathematically I also think he used abbreviations and lingo only he would know. Expect some words to seem like gibberish after decoding.[/quote]

Finding words in the text is probably useless and all of them are most likely coincidences. This is a cipher that he created through his childhood, it would be pretty impractical and confusing to leave words scattered around unchanged by whatever process used.

[QUOTE=The Winner;28887804]Finding words in the text is probably useless and all of them are most likely coincidences. This is a cypher that he created through his childhood, it would be pretty impractical and confusing to leave words scattered around unchanged by whatever process used.[/QUOTE] I'm pretty sure one of the notes is the cypher, he could've written down how it works so he wouldn't forget it.

I thought it meant 1,999 murders when I first read the title

[QUOTE=tehperzon;28887512]we really need that boy with an IQ of 170 it would benefit a lot[/QUOTE] ... that's not saying much. I have an IQ of 156, and i'm a H.S. drop-out.

[QUOTE=killover;28883680]Whoa it has 'PI' in the corner, maybe this has something to do with pi? Like the numbers of pi translate into the letters (like kiddie grade 4 shit like 1=A 2=B).[/QUOTE] Not the killer, but p1 in a circle is how I number pages. Maybe the victim is the killer!

Okay, my husband and I are looking this over. So far we think it is talking about three different people plus a women named Jane. With the three people we think we found three different dates. Could be he had meetings set up to see these three people on July 1, 1999; July 4, 1999; and July 5, 1999. My husband is pretty sure NCBE deciphers into 1999. Also the assumed writer, the murder victim, did not graduate high-school and was 41 years old in 1999. Schools 40 years ago did not teacher the same subjects as they do now, and for all we know the writer could be dyslexic and this is how he wrote and his family assumed he was writing in code. I also think that the guy who suggested that the writer may have the words mixed into a sentence without breaks could be on to something. I also have my mother-in-law and her friends looking into this at this time. They are code breakers so maybe we can find something that could help.

**about P1** i'm so tired, this IS going to sound like shit, BUT i did notice that the writer of the code only picked up his/her hand/pen a few times, and for the count it was 88 characters that the writer lifted their hand in writing a character, and only once on the letter "R". This occurs on the 11th line in "(PRTSEPRSE ON REDE 75 NCBE)" at the "REDE" portion. Also i would like to point out that "(CDNSEPQSEONSEO 74 NCBE)" is not correct, it should be "(CDNSEPQSEONSEE 74 NCBE)" b/c there is an "E" under the "O" that is scratched over. The point of this was to say that this was written quickly... or by the writers non-dominant hand... or both. idk. i did notice something even though it's nothing; at the bottom on line 12 it says 'SOLEMRDELUSE" and then it goes on to the same babble again... as i said, i know it's nothing but add some spaces in there and you have "SOLE MR DELUSE" btw: deluse is italian for/as -v. delude, disappoint, deceive, frustrate, blight -adj. disappointed, crestfallen sole is italian for/as -n. sun, star at the center of the solar system around which the planets revolve -adj. alone, lonesome, only, lonely, lone; mere, sole; single, unaccompanied just something to ponder on, i'm goin to bed now. goodnight all.

God damn internet police, you're like fucking CSI. But in the basement. I love you sons of bitches, never change. :love:

What if the FBI is trying to troll us? Also, why only this case? Why not ask the public to help with the Zodiac case as well?

[QUOTE=shian;28888479]What if the FBI is trying to troll us? Also, why only this case? Why not ask the public to help with the Zodiac case as well?[/QUOTE] More than likely they're just screwing with us to see what we can come up with, and how the whole "working together for the greater good" will work when the aliens strike... but for-cereal i'm going to bed now.

There's lots of repeating sequences, some with variations: NCBE (18) WLD (13) PRSE (7) NMRSE (2), NPRSE(2), NCRSE (1), NARSE (1) NMRE (2) SOLE (2) INC (2) [edit: nevermind the NPRSE, that would be two more PRSE] I'm reading the three indented lines on p1 like this: (FLR SE PRSE ON DE 71 NCBE) (CDN SE PRSE ON SFE 74 NCBE) (PRT SE PRSE ON REDE 75 NCBE) Random stuff: 71, 74 and 75 are three highways converging in Cincinnati. Things that came to mind on first read (although they now seem a bit silly): PRSE = person NCBE = some kind of end-of-sentence marker WLD = wild MUNDDLSE = mudslide GDDMN = god damn Reorganizing the list of numbers and removing all the SE's: 36 ML 74 SPRK 29 KC NO SOLE 175 RTR 35 GLE CLG NUNU TRE DKRP SHLE 651 MTL HTL NCUTCTRS NMRE 99.84.52 UNE PL NCR AOLT NSK "35 something Calgary"? "651 Montreal Hotel"?