Killers do indeed change their M.O., in order to adjust to changing circumstances or avoid detection. What they don’t change is what’s called by professionals their “signature,” or what they actually get emotionally from their crimes. I spent the first two chapters of my book showing how the “signature” elements of the Zodiac and Unabomber crimes were virtually identical, and also challenging the use of the term “serial killer” to define a type of murderer.
Kaczynski has been asked about the Zodiac crimes and has indignantly denied having committed them, in the process referring to me as a “kook,” which I found somewhat amusing, coming from a person who thought he was going to alter the course of human history by mailing out a couple of package bombs.
Being called a “kook” by Kaczynski could only be taken as a compliment... though, I will admit, aspects of his Techno Slavery (or whatever it’s called) manuscript have aged well. But, obviously, not sure how much more ‘nutjob’ it gets than mailing out letter bombs to people. Of course, nuts like Ted think we are all crazy and he’s the sane one.
I think the Zodiac Killer stopped around ~1969 and if memory serves, Ted didn’t start bombing until the late 70’s. With that in my mind, do you think he continued to kill undetected or that he went through a long cooling off period, which my understanding is rare (the super long part), but is possible as evidenced by BTK and The Golden State Killer?
I saw your book in Amazon (saw title in your bio), I’ll check it out!