Years ago I identified a location for this bomb alongside a road close to Ingleside Police Station of 4 radians and 5 inches (tilted to Magnetic North). Long time Zodiac researcher, Andrew Gray, later took these measurements and slotted them into the Z32 code, reading "Estimate Four Radians and Five Inches". The word "estimate" allowed for a margin of error. When the Zodiac Killer crafted his Bus Bomb letter on November 9th 1970, he may have used the 9 o' clock position tilted to Magnetic North to identify the Salesian High School of teacher Daniel Williams, who had just been targeted for death by somebody claiming to be the Zodiac Killer. The 9 o' clock position had been highlighted along with 0, 3 and 6 on the June 26th 1970 Phillips 66 map.
So this technique of using a clock face, radians and inches (measurements) to identify a location, is not without precedent. On this occasion the Pines postcard author placed the punch-hole of 1.96 square miles.over the remains of Donna Lass. This location also landed on the 9 o' clock position of a clock face from the Sierra Club of Clair Tappaan Lodge. But were these measurements created deliberately by the Zodiac Killer, or was he just lucky when he applied the "Sierra Club" and punch-hole 2.19 inches apart on the same horizontal plane, and used "around in the snow" upside down, which when flipped through 180 degrees forced a change and corrected their east-west relationship to one another? It's rather curious that the newspaper read in January 1986 that remains had been "found in 2 inches of snow", given that the author of the postcard likely expected her to be found "around in the snow". Read more.
A RE-EXAMINATION OF THE PINES POSTCARD [PART ONE)
A RE-EXAMINATION OF THE PINES POSTCARD [PART TWO]
A RE-EXAMINATION OF THE PINES POSTCARD [PART THREE]