With few exceptions there was*. Zodiac usually targeted couples or for lack of a better word, 'lovers lane' couples. Either parked in cars or isolated areas where young lovers could be alone. Although attacking male and female, the target seemed to be the girl. It would seem the killer had a problem with intimacy between heterosexual couples.
His choice of victims though, did not seem to be related to their astrological signs. But his crimes came on or near celestial events such as summer/winter solstice, equinoxs, phases of the moon and planetary alignments.
It is also true that Zodiac's crimes reflected school holidays, which came as no surprise to detectives. They suspected Zodiac may have possibly been a school custodian, ect.
*Paul Stine, the San Francisco cab driver did not fit into the 'couples MO'. But there was a distinct reason for his murder. Zodiac, if nothing else, was intelligent. Stine's murder was to derail the investigation by breaking the pattern. It also added to the confusion of compiling evidence between different cities and counties. Even to this day there are complications when multiple police agencies decline to share information with each other.
The Killers' official fan club is called The Victims.
The original Zodiac* was never caught. *Zodiac had at least three copycat killers using the Zodiac name.
The state in which the Zodiac Killer took his victims' lives is in California. The Zodiac Killer took his victims' lives in various cities in Northern California: Benicia, Vallejo, Lake Berryessa, and San Francisco.
no he was to busy killing people to worry about any other then his victims and himself. To me most serial killers did not marry and one of the reasons the Zodiac killer was never caugh was because he blended very well in society which gives a high probability of being married.
Because the content isn't about the killers, it's about the victims.
When the identity of a person is not known as a fact, anything could be possible. Now, the Zodiac killer connected to the mafia is highly unprovable. The victims had no connection linking them to the mafia and the victims had no motive for the mafia to murder them. The Zodiac killer had a successful serial killer career. Most serial killers who achieved this are functional psychopaths. That gives us another reason, functional psychopaths aren't team players. The Mafia are team players.
In any way they can think of.
women
I believe the case of Cheri Jo Bates is included in the list of victims of Zodiac.
Serial Killer Michael Ross.
There have been several serial killers that have targeted couples. The Zodiac from northern California killed couples, although not exclusively. Paul Stine, a San Francisco cab driver was shot in the head by Zodiac. It is also likely that Zodiac killed in southern California also. Several couples and lone women were the killer's choice. New York City was the hunting grounds of Son of Sam killer David Berkowitz. From the summer of 1976 to summer 1977 Son of Sam killed six victims, wounded seven. The victims, mostly male/female couples parked in cars.
People are killed much more often by someone they know.