Hey Morf13
You are on the go, as soon as I started reading about letters being wrote I thought of you and well well here you are. LOL If this letter proves to be a Zodiac letter, he was a man on the move which makes me always think truck driver (I know, I said it before). They can run the same rounds for weeks, months even years till the trucking company loses an account and then the driver starts running another location. There would be no better job for a serial killer. It is hard to catch someone who is on the move and I really feel there are a few of the them out there. It would be really cool if dispatchers in trucking companies would look at the dates of the killings in (Zodiac) CA and see if there is a pattern.
I will share with you a handwriting comparison i did of the anon. letter writer compared to the KNOWN writing of Zodiac. The Zodiac will be called "Z" in the writng comparison the anonynous Houston writer is called "H". Judge for yourself,as for me , i am certain the anon. letter writer is ZODIAC! Whether he committed their murder, i cant say,but the way they were killed is alot like the Lake berryessa Zodiac attack. In that attack,Zodiac approached a young couple with a gun,and subdued them. He then tied them both up,and stabbed them both repeatedly. Very similar to this case. Two big differences.
1- Cheryl was raped. Zodiac never did that,but maybe he moved onto rape later on.
2-Their throats in this case were slit.Zodiac stabbed. Although i believe if Zodiac did kill this couple he slit their throats,as to not leave witnesses as he did in the berryessa attack.
The sketch you saw is of a rapist in another case. Chery henry's rape DNA matched to the DNA taken fron another rape victim,who survived her attack,and gave the description of her attacker in the sketch. He would have been in his 30's or 30's,too young to be Zodiac. But i also read that the lab that did the tests for DNA for Houston PD,was shut down due to improper DNA handling and mix-ups, so the DNA from Cheryls henry's rape,may not even go with the person in the sketch.
As far as Zodiac being a trucker, i dont think so. I think he moved to Texas. There is no known Zodiac activity in Calif after 1974. I believe its because he moved.
please give your opinions on the handwriting comparisons