I found a detail in the Edmund Kemper case with regard to the names of a burial place of two of his victims, of which the medical examiner at the times said to the investigators that "the assassin (s) probably had medical knowledge or acted according to a strange ritual..."
It is interesting when you compare the place where Kemper buried two of his victims with the place names where the Zodiac struck or the street names in the case of the 1996-1997 dépeceur de Mons, Belgium. In the case of Edmund Kemper the places where he buried two of his victims were named after the two polar opposites: "...Eden Canyon Road around two in the morning, where he throws the beheaded bodies. He then continues to the town of Pacifica, at Devil's Slide, where he throws the heads and hands of the two young girls." Source: http://edmundkemperstories.com/blog/category/devils-slide/
The cutting off hands runs deeper, according another source. Peter Vronsky alleges in his 2004 'Serial Killers, the Method and Madness of Monsters' that as a child and teenager, Kemper performed rituals with his younger sister Allyn's dolls where he removed their heads and hands.
Eden Canyon Road and Devil's Slide. Heaven and hell. Paradise Regained, Paradise Lost. "when I die I will be reborn in paradice (sic) and then all that I have killed will become my slaves", Zodiac wrote.
Kemper's devil place name is reminiscent of the Zodiac, Mount Diablo spot and the radians theory of Gareth Penn, Charlie Manson's Devil's Canyon two miles from Spahn's movie ranch, or the theory of sheriff Striepeke, who claims that the spots of the Zodiac murders together to form a gigantic Z on the map of America, or the Smiley face murders theory that has the same nationwide effect of drawing a figure on the face of America. It reminds one also of James Shelby Downard's groundbreaking essay 'King Kill 33 Degree' where he pointed out the Jornada del Muerto (Journey of Death) symbolism, the Gate of a Thousand Doors and mystical toponomy and alchemy.
Michael A. Hoffman II also pointed out the spot where the Unabomber was caught: an unassuming watering hole in Lincoln, Montana, that is tellingly named Scapegoat. In his seminal 'Secret Societies and Psychological Warfare' he discusses the ritual of the 'Revelation of the Method', in that all these atrocities are purposely conducted in the open, and not behind an impenetrable cloak of darkness. It is a ritual enacted for the purpose of 'programming the group mind', as he calls it. It is what Downard calls: "The Making manifest of All that is Hidden" or "The Must Be".
There is also the Devil places theory that Loren Coleman launched in the 1980s: https://spookygeology.com/devil-places/ which is curiously interesting in connection with George Oakes article 'Malice in Wonderland: Portrait of the Artist as a Mass Murderer'.
And sometimes the focus shifts to other details such as in the 1971 New York, Rochester, double initial murders case. In this case the child victims first and last names bizarrely began with the same initials. Not only that, the bodies of 10-year old Carmen Colon, 11-year old Wanda Walkowicz and 11-year old Michelle Maenza were found in outlying towns with the names of these towns beginning with the same letters matching those of the children's names, Churchville, Webster and Macedon (Source: Billings Gazette, Billings, Montana, 27 December 1973). There is an undercurrent of research that connects the never caught double initial serial killer to the Boston strangler murders.
Hoffman II tells in an interview: "One of the cases that I first studied was the “Double Initial” murders in Rochester, New York of young girls. That’s never been solved, and the United States Secret Service was on the scene of one of those killings. Again, that raised my interest tremendously. Why on Earth would the U.S. Secret Service be present on a case of what the media and the police were saying was a lone nut who was a psychopathic hater of young girls? And yet there were many symbolical connections."
No coincidence the Sopranos came after.
While not a body, in a suburb of Rochester NY (home of the original Alphabet/Double Initial Murders) the grisly accoutrements of the murder of Craig Rideout were dumped in a pond known as Devil's Bathtub, by his son(s).
Several years before, a man named Tim Wells killed his wife, Christina Seville (& attempted to kill their dog, too), & brought her body in the trunk of his car to Devil's Bathtub.
It is unclear whether he intended to dump her body in the woods or pond--& felt compelled to call police & confess his crime before doing so--or not.
https://www.monroecopost.com/article/20101119/NEWS/311199950
Marcia Moore case 1979
https://www.upi.com/Archives/1981/03/26/Author-says-sisters-death-may-be-work-of-witches-or-bizarre-cult/8457354430800/ "March 26, 1981 SEATTLE -- Writer Robin Moore, the best-selling author of 'The French Connection' and 'The Green Berets,' says his sister's mysterious death may be the work of witches or a cult that ceremoniously beheads animals.
The bizarre suggestion was made a day after authorities positively identified a skull found in a swampy area of North Seattle as that of his sister, Marcia Moore, who had been missing two years.
'I don't for one minute believe that my sister died a natural death,' Moore said Wednesday from his home in Westport, Conn. 'I think her demise was assisted perhaps by a cult we don't even know about. Marcia was targeted by these people on several occasions.'
Ms. Moore, heiress to the Boston blue-blood fortune of Sheraton Hotel chain founder Robert L. Moore, was a nationally known author on psychic phenomena who experimented with the hallucinogenic drug ketamine, an anesthetic, in the months prior to her disappearance."
(Seattle area - Creech, Bundy, Green River)
https://archive.macleans.ca/article/1981/6/8/if-the-dead-could-speak
"Marcia’s brother, Robin Moore, author of The Green Berets and The French Connection, is less inclined to forget. Detectives favor the possibility that animals dragged her head from her body, but Moore sees the separated head as the work of a satanic cult which ceremonially beheads its human sacrifices. Says Moore emphatically: “I don’t believe my sister died a natural death.” Moore has enlisted the support of Hans Holzer, a parapsychologist and author of Murder in Amityville, who intends to “psychometrize” Marcia’s personal belongings. The theory of psychometry, which Holzer pioneered in 1967, is that personal artifacts have, and give, memories which could contain important clues. Says Holzer: “I’ve been called in on murder cases before and know that by and large police departments have no imagination. There are overtones of a pagan cult involvement. Having known Marcia, and her somewhat uncritical involvement with people, there may be something to it.” "