I couldn't help thinking: was it significant that the Zodiac Killer would reference the "Vanishing Point" movie, nine days before the Pines card about the "vanished" Donna Lass? Several years ago I noticed that the main character, Kowalski, in the Vanishing Point movie, met his death in the unicorporated community of Cisco, California, just 10.55 miles west of the Clair Tappaan Lodge "Sierra Club" (although filmed in Cisco, Utah, the movie portrayed his death in Cisco, California). The idea crossed my mind that Donna Lass (if the Zodiac was her killer) may also have met her death, and been buried or disposed of, in or close to Cisco in Placer County. The commentary at the end of the 1971 movie detailing Kowalski's death, noted that "no body was ever found". We don't currently know the exact location the skull and jawbone were found in late 1985/early 1986, but Cisco is extremely close to Interstate 80, Highway 20 and Yuba Gap (3.8 miles). The Lake Valley Reservoir is 1.3 miles from Cisco. Irrespective of this observation, there still remains little reason to believe a connection between the Zodiac Killer and the untimely demise of Donna Lass. PART TWO PART THREE.
Vanishing Point article: May 17th 2019
Retrospective Victims article: February 12th 2021 (connecting the Pines & Monticello cards)