ORIGIN OF THE EQUINOX LETTER WRITTEN BY PHIL GIETZEN-

This note Mike was clearly found approximately 3 years after it was authored on 22nd September 1972 possibly in Oakland. It opened with the statement Equinox 3:33 pm. Can’t make it Sat nite but the spell is broken and hope I’ll see you more than ever" Three months prior to this on 29th June 1972 you found the threat on Edward Salmina of 25 Crescent Lane, Novato, Marin County. The death threat he received began "If you leave your house past 3:13:47 on the next ten Saturdays, you will be killed." Both mentioned a time separated by only 19 minutes and mentioned Saturday in the text. Both were hand printed. The locations were only 40 minutes journey time apart. Two months prior to the Novato threat on April 7th 1972 was the Pine Hill Road, Tamalpais Valley attack on Isobel Watson, also in Marin County and only 20 minutes away.
Three questionable Zodiac links, but a relatively small zone over a five month period. Nothing major, just a thought.

@37.9538297,-122.5403902,10.5z/data=!4m26!4m25!1m5!1m1!1s0x80857d8b28aaed03:0x71b415d535759367!2m2!1d-122.2711137!2d37.8043637!1m5!1m1!1s0x8085bbdf59a49e8d:0x5b71467c673b849!2m2!1d-122.5697032!2d38.1074198!1m5!1m1!1s0x8085bb8190cb538f:0x3b734c162c07cc00!2m2!1d-122.5845268!2d38.1050532!1m5!1m1!1s0x80858556e4da5ad7:0xbadc799c6dead025!2m2!1d-122.5338964!2d37.8826886!3e0″> https://www.google.co.uk/maps/dir/Oakla … 826886!3e0

This note Mike was clearly found approximately 3 years after it was authored on 22nd September 1972 possibly in Oakland. It opened with the statement Equinox 3:33 pm. Can’t make it Sat nite but the spell is broken and hope I’ll see you more than ever" Three months prior to this on 29th June 1972 you found the threat on Edward Salmina of 25 Crescent Lane, Novato, Marin County. The death threat he received began "If you leave your house past 3:13:47 on the next ten Saturdays, you will be killed." Both mentioned a time separated by only 19 minutes and mentioned Saturday in the text. Both were hand printed. The locations were only 40 minutes journey time apart. Two months prior to the Novato threat on April 7th 1972 was the Pine Hill Road, Tamalpais Valley attack on Isobel Watson, also in Marin County and only 20 minutes away.
Three questionable Zodiac links, but a relatively small zone over a five month period. Nothing major, just a thought.

@37.9538297,-122.5403902,10.5z/data=!4m26!4m25!1m5!1m1!1s0x80857d8b28aaed03:0x71b415d535759367!2m2!1d-122.2711137!2d37.8043637!1m5!1m1!1s0x8085bbdf59a49e8d:0x5b71467c673b849!2m2!1d-122.5697032!2d38.1074198!1m5!1m1!1s0x8085bb8190cb538f:0x3b734c162c07cc00!2m2!1d-122.5845268!2d38.1050532!1m5!1m1!1s0x80858556e4da5ad7:0xbadc799c6dead025!2m2!1d-122.5338964!2d37.8826886!3e0″> https://www.google.co.uk/maps/dir/Oakla … 826886!3e0

Richard, I found the author of this letter a few years ago- viewtopic.php?f=47&t=170&p=275&hilit=gietzen#p275
I think the letter had nothing to do with the Zodiac case, and was turned in by a well meaning citizen due to it’s zodiac like qualities