Norse, I like your "letter writer" (oops!) "Zodiac was inspired by the guy at the lake" angle quite a lot.
Re:
Norse wrote:It's an executioner's outfit. It ties in nicely with the Mikado.
Well..... Berryessa was September 27th 1969 - The Little List letter arrived 26th July 1970. Mikado - KoKo, the executioner.
Did one lead to the other? Perhaps it did yes. Maybe. But it took a damn long time!
Were they both inspired in the mind of the same nut? Well... IDK.
If he'd written about Ned Kelly in October '69, would we be talking about Ned Kelly right now instead of Groucho's Mikado? Yes, we would. Here's a rubbish picture. Looks like Ted K.
http://x-bonez-x.deviantart.com/art/Ned-kelly-185861343 I like the fact that KoKo never actually killed anyone quite a lot too, of course. The whole things a comic opera? Yes, could be.