Examining the ballistics evidence at Lake Herman Road to determine the possibility of whether two shooters could be eliminated as a viable option in the murder of Betty Lou Jensen and David Faraday on December 20th 1968. One retrieved bullet could not be definitively ruled in, as having been fired from the same weapon as other retrieved bullets from the crime scene. Additionally, there was one crucial casing missing from the evidence room.
Linking the 1986 'Zodiac' letter to the April 22nd 1986 double murder of Koy Ien Saechao and Choy Fow Salee in Sacramento. The Laotian couple were brutally gunned down through the front side window of their vehicle while parked up alongside a Sacramento freeway.
This double murder exhibited all the hallmarks of the attack on Michael Mageau and Darlene Ferrin at Blue Rock Springs Park on July 4th 1969.
The letter may or may not have been authored by the Zodiac Killer, but it was almost certainly referencing this crime.
Discovering the identity of the Vallejo cop referenced by Zodiac in his November 9th 1969 'Bus Bomb' letter.
The letter finished by stating "To prove that I am the Zodiac, ask the Vallejo cop about my electric gun sight which I used to start my collecting of slaves."
The identity of the Vallejo cop can be discovered by searching newspaper cuttings that inspired the 'Debut of Zodiac' letter, received by the San Francisco Examiner on August 4th 1969. The Vallejo cop was Jack E Stiltz.
Examining the brutal stabbing of Cheri Jo Bates in Riverside on October 30th 1966 from the standpoint of the autopsy findings.
Could the order of events that evening/night be unfolded by studying the wounds inflicted upon the young woman in the Riverside alleyway.
The killer or killers of Cheri Jo Bates were never caught, yet by closely scrutinizing the findings of pathologist Rene Modglin, we can formulate a possible scenario that ended the life of a beautiful and amiable young woman.
Where did the Zodiac Killer go after the murder and attempted murder of Darlene Ferrin and Michael Mageau on July 4th 1969.
Using a liberal sprinkling of geographic profiling, the timeline of the payphone call, and the 'Debut of Zodiac' letter received on August 4th 1969, we presented a case for the murderer living but a short walking distance from the payphone at the intersection of Springs Road and Tuolumne Street.
Attempting, but probably failing in an attempt to convince, that the Zodiac phone call directions forty minutes after the Blue Rock Springs Park attack were in fact correct from a directional standpoint.
It has long been perceived that police dispatcher Nancy Slover, while attempting to talk over the killer, actually heard and recollected the entire message verbatim, with not one single error. The contrary is perceived of the Zodiac Killer- his message was error strewn from the standpoint of directing police from the station to the crime scene. This doesn't have to be the case.
In the aftermath of the Presidio Heights shooting, observers seem unsure where the negro male description error seemed to have originated from. At Blue Rock Springs many are totally convinced- it was Zodiac.
Following the movements of the Zodiac Killer, and police officers Armond Pelissetti and Donald Fouke in the aftermath of the Paul Stine murder in Presidio Heights on October 11th 1969.
Attempting to weave the conflicting stories into one coherent timeline, to unearth the movements of the Zodiac Killer once he headed north on Cherry Street and towards the Presidio Park.
This was the last of the Zodiac Killer's canonical five, yet he continued his sustained assault on the newspapers of the day for many years to come.
Placing Cheri Jo Bates' Volkswagen Beetle back in its rightful position just yards from the library annex.
This positioning was eventually reinforced by police in the December 2017 History Channel docudrama 'The Hunt for the Zodiac Killer.'
Robert Graysmith, author of Zodiac, had placed Cheri Jo Bates' vehicle 75 yards west of the alleyway, which would dramatically have altered the sequence of events that night. This has hopefully corrected that premise.
This looked at the spent casings on the Lake Herman Road turnout floor and attempted to piece together the unfolding double murder on December 20th 1968.
Using the ballistics evidence and position of the stricken victims, we can piece together one possible order of events. However, there may be many alternatives, not withstanding the possibility that two shooters were present in the turnout at 11.15 pm that night.
Using the autopsy findings from Betty Lou Jensen, it may be possible to understand her position in the turnout that night with respect to the shooter. We know the path she took in her flight for freedom, but can a little more light be shed on whether she was fired upon after the execution of David Faraday, and where she was standing prior to the merciless attack on the young couple that night.