Leona Roberts (16) disappeared from her boyfriend's apartment at 749 Tormey Avenue in Rodeo at around 6:00pm on December 10th 1969. Her disappearance coincided with a pasted communication on the same date from Sacramento, dubbed the Day-By-Day Forecast for Cancer, which contained the pasted word "Zodiac". The following day, on December 11th 1969, a second pasted communication postmarked San Francisco and dubbed the Day-By-Day Forecast for Leo, could have been a play on "Leona" Roberts name and fate, bearing in mind she wasn't murdered for at least 11 to 14 days. Her body was found at Bolinas Lagoon on December 28th 1969.
These two pasted horoscope communications were not publicly released, yet somebody claiming to be the Zodiac Killer just happened to phone Peggy Trainer (18) and claim she would be his next victim. Peggy Trainer lived directly behind the apartment where Leona Roberts disappeared from.
Therefore, we have two sinister communications on December 10th and 11th containing the pseudonym "Zodiac" and the "Forecast for Leo", along with a potential "Zodiac" phone call to Peggy Trainer on January 4th 1970, who was a neighbor to the apartment where Leona Roberts was last seen alive. Did the person who rang Peggy Trainer claiming to be Zodiac, if different from the author of the December 10/11 communications, just get lucky attaching the pseudonym "Zodiac" close to an abduction site, that coincided with a "Zodiac" communication mailed on Leona Roberts abduction date? Or were the communications and caller the same person, separated by 24 days?
Thank you to Gavin Fish from True Crime on Youtube for supplying me with this newspaper article from the Contra Costa Times, dated January 7th 1970.