Inspired by the savage knife murders of Kathy Snoozy (15) and Deborah Furlong (14) on August 3rd 1969, the Zodiac Killer drove away from the shores of Lake Berryessa to the corner of Clinton and Main Streets in Napa. By November 9th 1969, the Zodiac Killer had retrospectively added the San Jose murders of the two teenagers into his running victim count. Just twelve days later he was claiming an eighth victim, when a letter arrived at the San Jose Police Department on November 21st 1969 with the insertion of November = 8. Bearing in mind the Zodiac Killer had now switched to brutal knife attacks, whether he was claiming them or participating in them, there is a distinct possibility that victim number eight was along these lines. He had no involvement in the Snoozy and Furlong murders, but the ferocity of the attack which left both victims absolutely brutalized, was ideal for a killer intent on stoking fear in the psyche of the American people. The San Francisco Chronicle reported that "the Snoozy youngster had 150 wounds on her back, 50 on the front and a "storm" of punctures on her neck. Deborah's body had about 100 wounds on her back and upper front and a dozen on her neck". The location of the attack was another advantageous feature for the Zodiac Killer, keen to bolster his burgeoning reputation as the most feared sociopath in the Bay Area. It was imperative that the Zodiac Killer chose his next victim wisely.

It is extremely unlikely that the Zodiac Killer was responsible for the murder of Reet Jurvetson (19) on November 14th 1969, found in dense undergrowth alongside Mulholland Drive two days later, but he was claiming victim number eight by November 21st 1969. Like the Snoozy and Furlong murders, Reet Jurvetson had been viciously stabbed 157 times in the neck, chest and torso, yet apparently transported to this location and thrown down the canyon from the roadside edge. Her body was discovered just north of Kimridge Avenue, only eight miles west of her last known address, at 5311 Melrose Avenue in Hollywood. The journey would have been west on Melrose Avenue, before heading north on Loma Vista Drive to Mulholland Canyon.
This, coupled with the fact she had consumed a meal just two hours prior to her death, could have given police an indication of where that meal had been eaten, bearing in mind the journey time from 5311 Melrose Avenue to the location of her body is about 25 minutes, and her apartment (by all indications) wasn't the site of her murder. That leaves approximately 90 minutes for events to unfold. Accounting for the fact that somebody had to murder the young woman by way of 157 stab wounds, carry or drag her body to a waiting vehicle and drive to Mulholland Drive, it is very likely she was murdered not long after seemingly being at ease in taking a meal. The victim's body showed no evidence that this crime was the result of robbery, or driven by a sexual motive. Drag marks at the crime scene indicated Reet Jurvetson had been transported to the crime scene in an upright position within a car and rolled down the ravine where she snagged in the brush just a short distance down, resulting in her being discovered by a 15-year-old birdwatcher. Her identity remained unknown until 2016.
This, coupled with the fact she had consumed a meal just two hours prior to her death, could have given police an indication of where that meal had been eaten, bearing in mind the journey time from 5311 Melrose Avenue to the location of her body is about 25 minutes, and her apartment (by all indications) wasn't the site of her murder. That leaves approximately 90 minutes for events to unfold. Accounting for the fact that somebody had to murder the young woman by way of 157 stab wounds, carry or drag her body to a waiting vehicle and drive to Mulholland Drive, it is very likely she was murdered not long after seemingly being at ease in taking a meal. The victim's body showed no evidence that this crime was the result of robbery, or driven by a sexual motive. Drag marks at the crime scene indicated Reet Jurvetson had been transported to the crime scene in an upright position within a car and rolled down the ravine where she snagged in the brush just a short distance down, resulting in her being discovered by a 15-year-old birdwatcher. Her identity remained unknown until 2016.
Had the Zodiac Killer read about the case of the woman alongside Mulholland Drive, noted the similarity in the ferocity of the attack to murders he had already claimed - and so insinuated his involvement by adding November = 8 in his November 21st 1969 communication? The last time he had written the months of his murders, he was also attempting to deceive.
The November 21st 1969 communication was postmarked five days after Reet Jurvetson's body was discovered, claiming an eighth victim, but was postmarked the exact day that Doreen Gaul and James Sharp's bodies were found on November 21st 1969 at around 11:00 PM in an alley behind the residence at 1138 South Magnolia, Los Angeles. They were murdered elsewhere and stabbed in excess of 50 times. This may not seem that unusual, until we consider that Doreen Gaul and James Sharp's bodies were found less than 3 miles (by crow) from the residence of Reet Jurvetson at 5311 Melrose Avenue. Even more curious that a typewritten letter from the supposed Zodiac Killer was discovered in the room of Doreen Gaul stating "You are too beautiful to live and I must kill you". And even more unusual that the Zodiac Killer purportedly mailed a threatening letter to the Albany Times Union newspaper on August 1st 1973 claiming his next victim would be from the Albany Medical Center, only 350 feet from 570 Myrtle Avenue, the street on which Doreen Gaul had previously lived. Then we have the May 2nd 1978 Channel 9 letter mailed to KHJ-TV Studios at 5515 Melrose Avenue - also purported to be from the Zodiac Killer - and located just 437 meters from the once residence of Reet Jurvetson (pointed out to me by Toots). The murders of Kathy Snoozy, Deborah Furlong, Reet Jurvetson, James Sharp and Doreen Gaul bound by the savagery of excessive knife wounds, with the Zodiac Killer never seemingly far away. Certainly not responsible for the murders of Kathy Snoozy and Deborah Furlong - and unlikely the murderer of Reet Jurvetson, James Sharp and Doreen Gaul - but the Bay Area murderer appears to have an uncanny sense of timing and location.
The November 21st 1969 communication was postmarked five days after Reet Jurvetson's body was discovered, claiming an eighth victim, but was postmarked the exact day that Doreen Gaul and James Sharp's bodies were found on November 21st 1969 at around 11:00 PM in an alley behind the residence at 1138 South Magnolia, Los Angeles. They were murdered elsewhere and stabbed in excess of 50 times. This may not seem that unusual, until we consider that Doreen Gaul and James Sharp's bodies were found less than 3 miles (by crow) from the residence of Reet Jurvetson at 5311 Melrose Avenue. Even more curious that a typewritten letter from the supposed Zodiac Killer was discovered in the room of Doreen Gaul stating "You are too beautiful to live and I must kill you". And even more unusual that the Zodiac Killer purportedly mailed a threatening letter to the Albany Times Union newspaper on August 1st 1973 claiming his next victim would be from the Albany Medical Center, only 350 feet from 570 Myrtle Avenue, the street on which Doreen Gaul had previously lived. Then we have the May 2nd 1978 Channel 9 letter mailed to KHJ-TV Studios at 5515 Melrose Avenue - also purported to be from the Zodiac Killer - and located just 437 meters from the once residence of Reet Jurvetson (pointed out to me by Toots). The murders of Kathy Snoozy, Deborah Furlong, Reet Jurvetson, James Sharp and Doreen Gaul bound by the savagery of excessive knife wounds, with the Zodiac Killer never seemingly far away. Certainly not responsible for the murders of Kathy Snoozy and Deborah Furlong - and unlikely the murderer of Reet Jurvetson, James Sharp and Doreen Gaul - but the Bay Area murderer appears to have an uncanny sense of timing and location.