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RICHARD GRINELL, COVENTRY, ENGLAND
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THE EDWARD ADAMS POSTCARD WAS MAILED BY ZODIAC. HERE ARE THE NEWSPAPER CUTTINGS TO PROVE IT.

9/16/2025

 
If you believe that the "13-Hole" postcard was mailed by the Zodiac Killer on October 6th 1970 (which I do), it is with absolute certainty that he mailed the Edward Adams communication on October 17th 1970 from Berkeley, California. The postcard, affixed with newspaper cuttings, read "Mon Oct 12, 1970. Edward Adams. The Zodiac is going to change the way of committing murders. I shall announce when I shall commit my murders, The Adamses are Next. you taught me to Mean it. ADAMS YOU ARE NEXT. Zodiac".

The section in blue was taken from the breaking news story about the Zodiac Killer on page 5 of the October 12th 1970 San Francisco Chronicle  The newspaper was reporting on the "13-Hole" postcard and the previously withheld "Little List​" letter mailed on July 26th 1970. The 8 words in red were all taken from a column on page 38 entitled "Question Man By O' Hara", just to the right side of the "Letters to the Editor" section. When I typed in a search for the word "taught" in the San Francisco Chronicle on October 12th 1970, it appeared only on page 38 in the "Question Man" column (shown below), followed by the other 7 words in the same column, which Zodiac used to spread haphazardly over his Edward Adams postcard. The 8 words can all be found in these two small responses to the "Question Man" below. The uppercase "M" in "Mean" can be found on the same page in the name "Abe Mellinkoff" just to the left of these responses.

​In the upside-down text of the "13-Hole" postcard, the Zodiac Killer created 17 words from the September 23rd 1970 San Francisco Chronicle "Morning Report" by Abe Mellinkoff, and one word from the column "Question Man By O' Hara". In other words, the Zodiac Killer created a total of 18 words he sourced from the "Letters to the Editor" page on September 23rd 1970, which he used on his "13-Hole" postcard, and created 8 words and the letter "M" from this very same page on October 12th 1970, which he used on his Edward Adams postcard. Therefore, Abe Mellinkoff and "Question Man By O' Hara" featured in both postcards. That's because they were designed by the same person.     
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FROM THE "LETTERS TO THE EDITOR" PAGE IN THE SAN FRANCISCO CHRONICLE ON OCTOBER 12TH 1970
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THE EDWARD ADAMS POSTCARD
The Zodiac Killer often referred to the "Editor" in his communications, including the "13-Hole" postcard, so it isn't surprising that a large quantity of newspaper cuttings were sourced from the "Letters to the Editor" page from the San Francisco Chronicle newspaper on September 23rd 1970 and October 12th 1970. Here is the upside-down text from the "13-Hole" postcard, which read "There are reports city police pig cops are closeing in on me. Fk I'm crackproof. What is the price tag now". Everything in red can be sourced from this single article by Abe Mellinkoff on page 54 of the San Francisco Chronicle on September 23rd 1970 (shown below)..See the recent article More on the "Pace" Postcard Cuttings for a more detailed explanation.
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FROM THE "LETTERS TO THE EDITOR" PAGE IN THE SAN FRANCISCO CHRONICLE ON SEPTEMBER 23RD 1970
Below are the two pages from the San Francisco Chronicle on September 23rd 1970 and October 12th 1970, that the Zodiac Killer mined heavily for his newspaper cuttings to paste onto his "13-Hole" and Edward Adams postcards. This proves without a shadow of doubt that the Zodiac Killer was responsible for both communications.  
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SAN FRANCISCO CHRONICLE, SEPTEMBER 23RD 1970
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SAN FRANCISCO CHRONICLE, OCTOBER 12TH 1970 (ROBERT GRAYSMITH CARTOON PRESENT ON THIS PAGE)
PictureEDWARD ADAMS POSTCARD
It was easy for the Zodiac Killer to find the "Adam" (and his signature "Zodiac") he used in "Adamses" because it was present on the front page of the October 12th 1970 San Francisco Chronicle next to his own story. The "ses" was located by searching for "passes" in the multiple sports pages covering American football. The surname "Adams" was also easily found in the sports pages. The forename of "Edward" was present in a story about Edward M. Kennedy on page 8. Bearing in mind that the Zodiac Killer showed an interest in Gilbert & Sullivan's "The Mikado" and films, it would probably have been apt had he chosen the word "Next" from page 43 featuring a Gilbert & Sullivan opera by the The Lamplighters and the cinema section. It was located in the listings of Bay Area Movies in the advertisement for the Albany Cinema at 1115 Solano Avenue in Berkeley, the very location that the Edward Adams postcard was mailed from. However, because of the "N" font, it appears that "Next" was sourced from the sports pages yet again.

​The surname "ADAMS" in uppercase letters can be found on page 30, in addition to "ARE" in two car advertisements (shown below). The large "YOU" with a dark background may be from another publication, because in some images of the Edward Adams postcard it appears a different style background (see the attached image on the right to see this difference).    
​EXTRA READING: THE "PACE" POSTCARD AUTHENTIC 
FOLLOW UP ARTICLE: THE SEARCH FOR "YOU" IN PRINT 

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PAGE ONE OF THE SAN FRANCISCO CHRONICLE, OCTOBER 12TH 1970
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PAGE FORTY-THREE OF THE SAN FRANCISCO CHRONICLE, OCTOBER 12TH 1970
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PAGE EIGHT OF THE SAN FRANCISCO CHRONICLE, OCTOBER 12TH 1970
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PAGE THIRTY OF THE SAN FRANCISCO CHRONICLE, OCTOBER 12TH 1970

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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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