ZODIAC CIPHERS
RICHARD GRINELL, COVENTRY, ENGLAND
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THE BLOOD TRAIL TO TERRACINA

5/23/2018

 
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In light of the possible capture of the Golden State Killer on April 24th 2018, there has been renewed excitement in recent weeks concerning the possible DNA left by the Zodiac Killer when he mailed his many correspondences. Other sources that may have harbored DNA have been mentioned, such as the car door, bottle and Zodiac bindings at Lake Berryessa, the gloves from Presidio Heights, along with potential blood from the killer deposited on the clothing of Cheri Jo Bates at Riverside on October 30th 1966. This may or may not be a Zodiac crime, but it is still an avenue that must be pursued.
 
Michael Cole, who runs the 'Zodiac Revisited' website, details the mitochondrial DNA findings of 1999, obtained by Michael Morford and pertaining to the case of Cheri Jo Bates. But the hope is now, that a full DNA profile can be obtained and cross checked using genealogy websites and familial DNA linkage. Separating any blood from the killer on Cheri Jo Bates clothing by locating Y-markers has always presented a challenge to forensic investigators in a mixed sample, however, there is a possibility that we may, or could have had the blood of the killer at Riverside from somewhere other than the clothing of Cheri Jo Bates. "The Y chromosome is currently by far the most popular marker in genetic genealogy that combines genetic data and family history. This popularity is based on its haploid character and its close association with the patrilineage and paternal inherited surname." PubMed.

Riverside Police were meticulous in their evidence gathering, performing a library reconstruction of events the night of the murder and taking fingerprints and hair samples from attendees of the library on Sunday October 30th 1966. They retrieved a hair sample from a blood clot at the base of Cheri Jo Bates' right thumb, recovered a cigarette butt from the alleyway floor and took fingernail scrapings from the victim. They also clearly considered the possibility that the killer of Cheri Jo Bates may have cut himself during the attack with a less than sturdy knife, described by Captain Cross as a pocket knife with a "3-inch blade or less". Even the author of the 'Confession' letter on November 29th 1966 (whether the killer or not) claimed that the knife broke towards the end of the attack. Was this the pivotal moment that ended the callous attack on the defenseless young woman?

The 'Inside Detective' magazine revealed one crucial piece of evidence from the Riverside alleyway crime scene. It stated
"The driveway adjacent to 3680 Terracina Street was so churned up it looked like a tractor had been over the ground. The girl, who was very athletic, put up a terrific struggle. At the murder scene, drops of blood leading from the body to Terracina Street indicated to the detectives, that the murderer had walked back to the street following the slaying". Using an old overhead view of the campus in 1966 (not shown here) and the fact she was positioned between the two vacant properties of 3680 and 3692 Terracina Drive, it is possible to calculate how far Cheri Jo Bates' body lay up the alleyway from Terracina Drive. Below I have placed all the relevant distances.     

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Cheri Jo Bates was lying approximately 100 feet southwest of Terracina Drive, shown in relation to the football field and scoreboard in the distance. That is an extensive blood trail leading away from the body, if the interpretation of the police statement is correct. ​The 'Confession' letter stated "When we were away from the library walking, I said it was about time. She asked me "about time for what". I said it was about time for her to die. I grabbed her around the neck with my hand over her mouth and my other hand with a small knife at her throat. She went very willingly". If the attack began in the vicinity of where her body was discovered, we are left with two possibilities: The blood trail to Terracina Drive was the victim's blood, dripping from the killer, or the killer's blood dripping from a cut hand. The blood trail, if significant enough to be noticed by detectives and was continuous to the sidewalk of Terracina Drive, then it could be argued to be blood secreted from a continuously bleeding hand, as opposed to a killer having blood on his person (absorbed by his clothing) or a small knife. Presumably, the killer would have pocketed the knife in advance of reaching the street. This must have been considered by investigators who visited the crime scene. But was this blood gathered from the alleyway floor and stored for 'future use?"

Cheri Jo Bates' blood type detailed at autopsy is rare in the USA population. It was AB RhD positive, which accounts for only 3.4% of the American population. Even with the limited forensic capabilities in 1966, this testing was a simple affair, and could have determined whether the blood trail extending toward Terracina Drive was that of the killer's or from the victim.
The pattern or tail of the blood drops could certainly have determined the direction of the killer within the alleyway. Since detectives concluded that the "drops of blood leading from the body to Terracina Street indicated to the detectives, that the murderer had walked back to the street following the slaying", then it remains a possibility that the killer injured himself during the attack, allowing the trail of blood to extend the full 100 feet in distance, as opposed to the limited blood secretion possible from a small pocket knife or clothing. If the murderer of Cheri Jo Bates cut himself when he delivered the stab wound to the young woman's back during the latter part of the attack, there may be limited blood transfer to her clothing, however, there may be have been far more present in the vicinity of the crime scene, during his 100 foot journey to exit the alleyway. By odds alone, it is unlikely the killer had an AB RhD positive blood type, making it easy to determine the origin of the blood on the alleyway floor, and whether it was from Cheri Jo Bates or even the Zodiac Killer himself. 
Judith
5/23/2018 07:18:11 am

What would cause someone to hate females so much? Indeed there's loads of DNA evidence from this crime scene. I recently visited the GEDmatch website and noticed that there is an ability to upload mtdna as well. And we really need additional DNA evidence aside from something on letters which anybody could have mailed, not just the killer. I have personally contacted Riverside many many times over the years and never received any kind of a response whatsoever. I have directed them to a female relative of Peter's for potential mtdna. I have offered up items for testing, directed them towards our own Sons DNA profiles with no response. Peter has handwriting idiosyncrasies which match the Bates letters and the desk top poem. Many law enforcement agencies have interviewed me spoken to me and corresponded with me, but not Riverside. Does Riverside hold the key?

Richard
5/23/2018 07:39:28 am

I have contacted Riverside twice under the FOIA to release police reports, and guess what Judith, no reply. Does Riverside hold the key?
That depends if you believe its Zodiac or not. I have never flipped so much on any subject in my life, but this case is infuriating to work out. So many things point to Zodiac and an equal number don't. If they did manage to get a full DNA profile from the July 31st letters or any of the three shirt piece letters, I would be satisfied the killer licked the stamps or envelopes. I don't buy the killer and letter writing duo theory, but each to their own.
I think the problem with contacting police Judith with a suspect in tow for the killings, you know what police will think. They will say "get in the queue with the other 10,000 people who know or think they know who the killer is." Rightly or wrongly, you know you'll get the raised eyebrows and deep sigh. If you or somebody else definitely had the right killer, it probably wouldn't make any difference anymore, because the police have probably been swamped with claims down the years. The chances of getting any meaningful access to police information, is probably down to who you are and not what you have. That is why the detectives from the History Channel docudrama waltzed into Riverside- they were offering a TV show and police status, even though they knew little about the Zodiac case.


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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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