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Between 1966 and 1974, the Zodiac killer provided more than 20 written communications to police officials,
some including ciphers that have not been cracked to this day.
Zodiackiller.com features the most complete collection of Zodiac's writings available anywhere in the world. In fact,
many of the letters and envelopes below were never seen by the public until posted here:
--> View High-Resolution Scans Of Select Letters <--
--> In-depth discussion at the Zodiackiller.com MESSAGE BOARD <--

(Above: The late Sherwood Morrill, who tracked Zodiac for years through the killer's own handwriting.)


(Above: Donald Harden (along with his wife)
solved Zodiac's initial three-part cipher.)
Harden talks about his strategy

April 30, 1967 Letters, Envelopes: 1 | 2 | 3 | NEW! 4

December 1966 Riverside Desk-Top Poem 1 | 2

July 31, 1969 Times-Herald Letter | Cipher 1/3 | Envelope

July 31, 1969 Examiner Letter | Cipher 2/3 | Envelope

July 31, 1969 Chronicle Letter | Cipher 3/3 | Envelope

August 1969 Debut Of "Zodiac" Letter

Oct. 13, 1969 Stine Letter | Envelope

Nov. 8, 1969 Dripping-Pen Card | Cipher | Envelope

Nov. 9, 1969 Bus-Bomb Letter | Envelope

Dec. 20, 1969 Belli Letter | Envelope

April 20, 1970 "My name is..." Letter, Cipher | Bomb Diagram | Envelope

April 28, 1970 Dragon Card | Envelope

June 26, 1970 Button Letter, Cipher | Map | Envelope

July 24, 1970 Kathleen Johns Letter | Envelope

July 26, 1970 "Little List" Letter | Envelope

Oct. 27, 1970 Halloween Card | Envelope

March 13, 1971 Los Angeles Times Letter | Envelope

Jan. 29, 1974 Exorcist Letter | Envelope

NEW! Feb. 14, 1974 SLA Letter | Envelope

May 8, 1974 Citizen Card (Back) | Front

July 8, 1974 Red Phantom Letter | Envelope

May 1978 Top-Secret Zodiac Letter?

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