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THE LOCATION OF THE BOMB?
The Zodiac Killer mailed a bomb threat on June 26th 1970, stating "the map coupled with this code will tell you where the bomb is set." One month later, realizing the inadequate information he had...
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"SAM" THE KILLER
At approximately 2:00 am on October 22nd 1969, somebody called the Oakland Police Department claiming to be the Zodiac Killer and wanting to appear on the KGO-TV Jim Dunbar Show that day. The caller...
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A TAHOE MYSTERY
In two previous articles we analyzed the design of the Pines Card in association with the disappearance and likely murder of Donna Lass on September 6th 1970. There are multiple possibilities, notably...
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THE LOCATION OF THE BOMB [PT2]
In a previous article we concluded that the 32 character code mailed to the San Francisco Chronicle on June 26th 1970 stated "P.S. The Mt. Diablo code concerns 4 Radians and 5 inches along the radian",...
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THE MURDER CLOCK
Before the advent of the Rigel software system, utilizing the geographic profiling techniques of criminologist Dr. Kim Rossmo, a rudimentary form of geographic profiling was used by Stuart Kine before...
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THE CODE SOLUTIONS BY ZODIAC
Donald Harden cracking the 408 cipher The Zodiac Killer mailed us three parts of one cipher on July 31st 1969, to the San Francisco Chronicle, San Francisco Examiner and Vallejo Times-Herald. In his...
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THE LOCATION OF THE BOMB [PT3]
In the final instalment of this series we will attempt to refine the previous conclusions gleaned from the Zodiac Killer letters.The Zodiac Killer stated on April 20th 1970 "I hope you do not think...
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MARAUDER OR COMMUTER?
A serial killer exhibiting the traits of a marauder will operate using a buffer zone from their residence but radiate from this base when committing their murders, whereas a commuter will operate...
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THE CRANK CALL
Benicia Herald: "Bidou and his partner had served a warrant on a Lake Herman Road cabin Dec. 20, 1968, and were on their way to deposit some marijuana in the police department’s evidence locker when...
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THE MURDER OF NIKKI BENEDICT
Nikki Alexandra Benedict Nikki Alexandra Benedict (14) had left her friend Kathie Gomski's house in Halper Road, Poway on May 1st 1967 shortly after 6:00 pm, to walk the 2 1/2 mile journey to her home...
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FBI FILES: THE ZODIAC KILLER, SLA AND KENNEDY THREATS
The Zodiac Killer disappeared sometime in 1971, only to reappear on February 3rd 1974 and mail the SLA Letter to the San Francisco Chronicle the day before the Symbionese Liberation Army kidnapped...
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OLD NORSE FOR KILL
In previous articles I have attempted to show that the February 3rd 1974 SLA Letter was mailed by the Symbionese Liberation Army, along with the Citizen Card and Red Phantom Letter. However, the...
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TAPED CONFESSION OF A KILLER
In a series of articles it has been shown that the Zodiac Killer was extremely unlikely to have reappeared in 1974 firing off four communications - of which three were primarily aimed at the feature...
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THE ANSWER TO THE 32 SYMBOL CODE - STRAIGHT FROM THE HORSE'S MOUTH
This has been covered before, but I just wanted to expand in a little more detail without pinpointing a particular location. How embarassing is the notion of a 50-year-old unsolved cipher, that we were...
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THE ANSWER TO THE 13 SYMBOL CODE - STRAIGHT FROM THE HORSE'S MOUTH
The 13 Symbol Cipher is simply too short for any meaningful decryption without a key or the answer. It is certainly possible to arrive at the correct solution using a key provided by Zodiac, but then...
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THE RAGE OF CONCERNED CITIZENS
In a previous article we compared a postcard from the Symbionese Liberation Army 'Hearnap' FBI files threatening the daughter of President Richard Nixon, to the Citizen Card purportedly mailed by the...
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A FIFTY-YEAR JOURNEY
If the Zodiac Killer was a resident of Vallejo or its surrounding areas, then a murder in the northwest corner of San Francisco would be the perfect choice for a number of reasons. With a vehicle...
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A FEMALE KILLER AT RIVERSIDE?
It is clear that everything contained in the November 29th 1966 Confession Letter was harvested from the newspapers, and whoever created the typed letter was deliberately dragging orchestrated words...
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THREE MONTHS AFTER THE MOUNT DIABLO CODE
The following article will coalesce several pieces of work from 2019 into one cogent story regarding a handful of communications mailed by the Zodiac Killer in 1970. For some, the following will be...
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THE "MCDONALD'S" LETTER
Two letters were mailed and postmarked February 1st 1988 and February 8th 1988 to McDonald's at 2 Northgate Park, Chattanooga, Tennessee. Both contained the word "attention" written on the envelope,...
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