
The Zodiac Killer chose the location of "Monticello" to bind together the murders of Kathy Bilek, Kathy Snoozy and Debra Furlong, the latter two of which he had claimed on November 8th 1969 in the Dripping Pen card. He added Kathy Bilek to his total when he mailed the 148 character cipher and letter in (likely) May of 1971, and ratified this on July 13th 1971 with the mailing of the Monticello card. These two communications in 1971 were a response to the arrest of Karl Francis Werner for the murder of all three girls. The burial location of Kathy Snoozy became integral to the Zodiac story on July 13th 1971, but investigators have apparently never made this connection. This is what makes the events of September 18th 1973 so very, very interesting.
On this date, somebody removed a tombstone from the Oak Hill Cemetery at First Street & Curtner Avenue and placed it in front of the cemetery gate. The tombstone had the pseudonym "Zodiac" written on it in crayon. We don't know the identity of the perpetrator who committed this unsavoury act, but we do know that the Zodiac Killer had a vested interest in the murder of Kathy Snoozy and the location of her burial site. I will leave it to you to guess the tombstone removed.
The Zodiac Killer's interest in the case of Kathy Snoozy & Debra Furlong likely began on August 6th 1969 (3 days after their murders) when the San Francisco Chronicle released a comprehensive front page article of the knife slayings, with a reference to her burial at the Oak Hill Cemetery in San Jose. The Zodiac Killer, having been relegated to pages four and nine of the San Francisco Chronicle and San Francisco Examiner respectively - and killing three people and writing four letters - was probably frustrated his efforts didn't receive comparable coverage. Therefore, it was no surprise he turned up on the shores of Lake Berryessa armed with a bladed weapon and wrote "by knife" on the car door of Bryan Hartnell. There is also the possibility he threatened the family members of Debra Furlong on December 19th 1969, when a phone call was received by police dispatcher, Shirley Searey, of the San Jose Highway Patrol, claiming to be the Zodiac Killer and stating "I am going to kill five of you officers and a family of five between now and Monday". The remaining five Furlong family members were Glen Furlong and his wife, along with Glen, 16; Floyd, 12, and Pamela, 11. All the information required to create this phone call and know the burial site location of Kathy Snoozy was available in the August 6th 1969 San Francisco Chronicle newspaper article. To read the entire Snoozy & Furlong story from March 27th 2022, visit here.