I only know that if I were the killer I wouldn’t mail the majority of the letters near my home residence. I would redirect the focus elsewhere, despite the possibility of the double-bluff argument.

Richard –
Agree 100%. If he did hand deliver the letter to the SFC it would also mean that he diverted away from his apparent pattern of using dropboxes right off of Route 1. This would break his pattern. Sometimes a break in a pattern is more illuminating than the pattern itself.

Cragle –
Also agree. I think this indicates that if he lived in American Canyon/Vallejo, then he likely took the 101 across the Golden Gate Bridge and did his mailings in the northwest corner of San Fran.

I think this could be big. I’d love Kim Rosso’s input on this.

American Canyon had a population under 2,000 in 1980 (the most historical figure I can find). How many white males living there in 1968-69?

So, I did a little informal research – feel free to debunk or add on.

Balboa Terrace is primarily residential. Nice, family homes with few, if any, businesses. There is only one mailbox within the defined boundaries of the neighborhood. That is located on the corner of Aptos and Upland. That happens to be right next to Aptos Middle School. That’s about a half mile east of Route 1 – about a 4 minute drive. The only other one that could be considered a Balboa Terrace mailbox is located just outside the accepted boundaries at the intersection of Eucalyptus and Ocean. That’s about 250 YARDS from Route 1.

So, it had to be one of these two dropboxes that Zodiac used to mail the letter, and like the others, both are extremely close to Route 1 (19th Ave.)

Has anyone ever spoken with the United States Postal Service Inspection Service? They would have been the ones to investigate the intercepted at the mailboxes.

Vallejo approximately 67,000 (white 52,000).
Benicia approximately 5,000.

Therefore if a Vallejoan, 26,000 are male. Then going on age, height, description etc, this figure could be vastly reduced. This, for me, is a more realistic approach in narrowing the suspect list using the cross-checking ability of modern computers, than the endless wait for the DNA dream.

So, I did a little informal research – feel free to debunk or add on.

Balboa Terrace is primarily residential. Nice, family homes with few, if any, businesses. There is only one mailbox within the defined boundaries of the neighborhood. That is located on the corner of Aptos and Upland. That happens to be right next to Aptos Middle School. That’s about a half mile east of Route 1 – about a 4 minute drive. The only other one that could be considered a Balboa Terrace mailbox is located just outside the accepted boundaries at the intersection of Eucalyptus and Ocean. That’s about 250 YARDS from Route 1.

So, it had to be one of these two dropboxes that Zodiac used to mail the letter, and like the others, both are extremely close to Route 1 (19th Ave.)

Has anyone ever spoken with the United States Postal Service Inspection Service? They would have been the ones to investigate the intercepted at the mailboxes.

Possibly a schoolteacher? Mon to Fri, nice early start. Good telephone manner "This is William speaking".

Home economics, domestic science or home science is a field of study that deals with the relationship between individuals, families, communities, and the environment in which they live. Home economics courses are offered internationally and across multiple educational levels. Home economics courses have been important throughout history because it gave women the opportunity to pursue higher education and vocational training in a world where only men were able to learn in such environments. In modern times, home economics teaches both men and women important life skills, such as cooking, sewing, and finances.

But in all seriousness, I have for a while considered the Zodiac Killer a likely school teacher.

Sure, it’s as likely as anything. One thing to consider re: home economics is that in the 1960’s, men very rarely taught home ec. It was usually women. A male home economics teacher would have stuck out like a sore thumb.

Something else to throw into the mix is we know where PS picked him up and also we believe that the letter was hand delivered to SFC. Could it be possible that worked in the vicinity of those two ?

I happen to have a minor in Home Economics with a Business Administration major but worked as a social worker for a county welfare dept. I did field work which involved making home calls

There are many jobs/professions that require travel outside of one’s office.

I sewed as did my mother and many others. The major dept. stores had what were known as "notions" depts. that carried zippers, thread, needles, pins, scissors, etc. that were used in sewing. They were usually located next to the area where fabrics were displayed on bolts.

My poi’s mother sewed and had a sewing machine at their family home. I made him a tie once since I couldn’t knit one nor a pair of argyle socks lol!

So my point is lots of people sewed back in the day (much more than now) and many learned at home, from their mothers. Making the Zodiac costume would have been really very easy and would not have required anyone taking a course in home economics or teaching one.

Something else to throw into the mix is we know where PS picked him up and also we believe that the letter was hand delivered to SFC. Could it be possible that worked in the vicinity of those two ?

Mason and Geary is about a half mile from the offices of the SFC on Mission Street. That’s about a ten minute walk.

FWIW, Geary Blvd. which becomes Geary Street farther east, is the main east-west thoroughfare of Richmond where two of the letters were mailed. You would only have to hop on Geary and in less than twenty minutes, you’re in Richmond and vice versa.

San Francisco is very walkable as well as having excellent public transportation. It is hilly but I walked all over the city once on semester break my first year in college wearing high heels!

Something else to throw into the mix is we know where PS picked him up and also we believe that the letter was hand delivered to SFC. Could it be possible that worked in the vicinity of those two ?

Hand delivered to San Francisco Examiner.

Something else to throw into the mix is we know where PS picked him up and also we believe that the letter was hand delivered to SFC. Could it be possible that worked in the vicinity of those two ?

Hand delivered to San Francisco Examiner.

Sorry SFE and he was obviously on foot when PS picked him up.

Another fact: freestanding mailboxes such a the ones used by Zodiac had morning and afternoon pickups. All of the Zodiac letters mailed from SF were stamped "PM" meaning they were picked up in the afternoon. That also means they were placed in the box after the morning pickup. The question is: what time were morning and afternoon pickups? If we knew that, we could nail down the time frame that Zodiac mailed them.

I have also heard today – from a source I’d consider reliable – that one letter was sent from Outer Sunset and another near City College. If true – big if – that means Outer Sunset is near Route 1 and City College is a 5 minute walk from the San Francisco Chronicle and a ten minute walk from Mason and Geary. This would add more credence to the idea of two Zodiac "hot spots": the north-south corridor of Route 1 and a cluster between the Financial District and the 101.

Another fact: freestanding mailboxes such a the ones used by Zodiac had morning and afternoon pickups. All of the Zodiac letters mailed from SF were stamped "PM" meaning they were picked up in the afternoon. That also means they were placed in the box after the morning pickup. The question is: what time were morning and afternoon pickups? If we knew that, we could nail down the time frame that Zodiac mailed them.

I have also heard today – from a source I’d consider reliable – that one letter was sent from Outer Sunset and another near City College. If true – big if – that means Outer Sunset is near Route 1 and City College is a 5 minute walk from the San Francisco Chronicle and a ten minute walk from Mason and Geary. This would add more credence to the idea of two Zodiac "hot spots": the north-south corridor of Route 1 and a cluster between the Financial District and the 101.

Out of interest do you know which of the letters these were ?

I take it these are the two which I posted on the earlier map ?