a poster named Queen of Clews posted the following, which I found very interesting:
Something to add...forgive me if this has already been mentioned.
This is a quote from a comical 1966 letter from TK to a Lombard neighbor.
He signed it "H. Bascomb Thurgood
"I have chosen you as my victim...when the first piece is played upside down and backwards,
it spells out the letters of my name, over and over, in varying permutations
taken from the alternating group on 18 letters
I find that to be very interesting.
AK Wilks - Doug Oswell had mentioned that Ted had created a musical piece (perhaps for trombone?) that hid the "18 letters" of his name, which confirmed that Ted viewed his name as having 18 letters the way he spelled it (Theodore J. Kaczynski), but I had not seen the quote above, which gives a little more detail, and I had not seen that alias of "H. BASCOMB THURGOOD". Thanks for posting that! Is there a further puzzle in the alias? "BOMB GOOD" leaps out at me...also THOR GOD. In fact, I have to check, but the first line of the Zodiac 340 has some of those same letters I think.
Most importantly, perhaps, it shows that Ted was into playing games, codes and puzzles with hiding his 18 letter name and daring people to find it, something it seems the Zodiac also did.