sounds like he was reading his Koran
Did the geniuses ever consider he misspelled words, used poor grammar or syntax to AVOID easy detection or solutions of the cypher. That he might have done that on purpose.
The use of non keyboard characters is the real clue. It shows that he KNEW that eventually someone would use computers to analyze the messages and if you can’t enter it on a computer keyboard then those trying to solve the cypher would be in a quandary.
An example of part of the problem is that the placement of a character in a line or changing the shape subtly to point in a direction could be part of his cypher.
I hope he’s rotting in hell and nobody knows or should know his pathetic name. F$&k him, I only wish he suffered before he dies. The victims are the ones that should be remembered. So sad.
I used to play duplicate bridge with Don Hardin, the original code cracker. My wife had him as a Social Studies teacher. He told me that he figured the Zodiak had an ego so he focused on “I” and went from there.
“FJB”
I HOPE YOU ARE HAVING LOTS OF FUN DRINKING YOUR OVALTINE I AM NOT SCARED OF OVALTINE EVEN THOUGH I AM ALLERGIC TO DAIRY AND I KNOW I WILL HAVE ALL THE OVALTINE I WANT IN PARADISE AND LITTLE ORPHAN ANNIE WILL BE MY FRIEND