Clik here to view.
THE NEXT CIPHER
The 408 cipher, mailed in three parts to the San Francisco Chronicle, San Francisco Examiner and Vallejo Times-Herald on July 31st 1969 had 18 unsolved characters at its foot. However, the Zodiac...
View ArticleClik here to view.
THE ZODIAC SUMMERLAND
It is a perfectly reasonable assumption that the biggest clue to the identity or inner mind of the Zodiac Killer should reside within the many communications he mailed over several years - the window...
View ArticleClik here to view.
GUARDIAN OF THE PINES
The Symbionese Liberation Army enjoyed thumbing their nose at the FBI, law enforcement, Hearst Corporation and newspapers, in a general attack on the capitalist society they believed harmed the...
View ArticleClik here to view.
"THE BLUE MEANNIES"
Here are some interesting observations regarding the Los Angeles letter, postmarked Pleasanton, Alameda County and mailed to the Los Angeles Times on March 13th 1971. This marked a shift in assumed...
View ArticleClik here to view.
VANISHING POINT
In the previous article we discussed the feature film Vanishing Point, which previewed in the January of 1971, had the usual trailers, and was released to the general public on March 13th 1971, the...
View ArticleClik here to view.
STOCKHOLM SYNDROME
The Symbionese Liberation Army mailed the S.L.A letter just a day or two prior to the kidnapping of Patricia Campbell Hearst, seized on February 4th 1974. It was postmarked February 3rd 1974, so unless...
View ArticleClik here to view.
THE OAKLAND A' S THREAT
In an attempt to cover all possible Zodiac communications, I will add the June 18th 1970 letter, postmarked Vallejo and addressed to Gerald Tagert of 1423 Roleen Drive in the northern section of...
View ArticleClik here to view.
THE SEARCH COST OF GEOGRAPHIC PROFILING
Kim Rossmo With the search for the infamous Zodiac Killer through DNA looking ever more threadbare, one very much overlooked tool in locating our offender is the 'science' of geographic profiling...
View ArticleClik here to view.
THE RIVERSIDE STUDEBAKER
We will take a look at the Riverside murder of Cheri Jo Bates on October 30th 1966 strictly from the perspective of the vehicle used by the killer, obviously presuming he had used one that evening....
View ArticleClik here to view.
ANALYZING THE JULY 31ST LETTERS
The Bay Area murderer mailed three communications in total to the San Francisco Chronicle, San Francisco Examiner and Vallejo Times-Herald on July 31st 1969, demanding that his ciphers be printed on...
View ArticleClik here to view.
THE CELEBRITY CYPHER [PART 2]
While discussing the September 25th 1990 Celebrity Cypher in an earlier article on this site, Rubislaw32 discovered the identity of the postcard, described by Zodiac researcher Lyndon Lafferty as...
View ArticleClik here to view.
DENNIS RADER (BTK) - GEOGRAPHIC PROFILING
Dennis Rader (BTK) In a previous article we explored the concept of geographic profiling with respect to the Zodiac Killer, using search cost percentages to highlight the possible home location of the...
View ArticleClik here to view.
THE IMPOSTOR RUNNING AMOK
Cecelia Shepard There is a significant number of people who believe the Lake Berryessa attack on Bryan Hartnell and Cecelia Shepard was not the Zodiac Killer, rather an impostor or fraud masquerading...
View ArticleClik here to view.
THE LEGEND LIVES ON
Kevin Robert Brooks The widely held consensus is that the Zodiac Killer wrote his last communication in 1971 during his first letter writing campaign, before returning to fire off another brief volley...
View ArticleClik here to view.
AN ADMISSION IN OCTOBER
Professor D.C.B. Marsh, in the October 22nd 1969 San Francisco Examiner newspaper article by Will Stevens, laid down a challenge to the Zodiac Killer to reveal his name. The newspaper stated "Dr Marsh...
View ArticleClik here to view.
THE STORY OF SAN JOSE
Bringing together several articles to paint the entire picture, I would like to tell you a little story about San Jose and the major impact it had on the actions of the Zodiac Killer spanning just over...
View ArticleClik here to view.
GEOGRAPHIC PROFILING THE FUTURE
Click to enlarge On December 16th 1969, the Zodiac Killer mailed a letter to the San Francisco Examiner from Fairfield, threatening "government life". Within the communication he compiled a list of...
View ArticleClik here to view.
THE WASHINGTON STREET SKETCH
Many questions have been asked about the Presidio Heights sketch of the Zodiac Killer, in particular, why was the drawing amended in the wanted poster from October 13th 1969 to October 18th 1969 - and...
View ArticleClik here to view.
THE NOVATO THREAT LETTER
In a case where every crime and confirmed correspondence has been covered extensively, it is always refreshing to examine some of the dubious outlier communications - ones that are often regarded as...
View ArticleClik here to view.
DESIGNING THE MONTICELLO CARD
Donna Ann Lass Using some material from previous articles, here we will show how the March 22nd 1971 'Pines' postcard was designed to pinpoint the burial location of Donna Lass by overlaying it on a...
View Article