Very interesting suggestion about the origin of the problem

Was he really an MK ULtra guinea pig when he was just 16? If that is true, the fucking CIA is at least 30% guilty of his crimes.
(random percentage but ykwim)
I never knew that when this was all happening, when he got caught. And I did read most of the newspaper articles about him at the time.
I say 30% because he does still have free will but other MK Ultra subjects may kill themselves or be permanently fucked up in other ways.
I think he still might have been a weirdo but perhaps not a MURDEROUS weirdo, if he had not been tortured by someone he trusted. His kind of intelligence can be a tool for good or for evil.

I think he was a child prodigy that never fitted in with his peers, that and his high intelligence made him somewhat an outcast. He was probably sexually repressed.

Kaczynski was a child prodigy and entered Harvard College at the age of 16. He earned his bachelor's degree from Harvard in 1962, then his master's and doctorate in mathematics from the University of Michigan in 1964 and 1967, respectively. After receiving his doctorate at age 25, he became an assistant professor at the University of California, Berkeley but resigned abruptly two years later. As an undergraduate at Harvard, Kaczynski was a research subject in an ethically questionable experiment conducted by psychology professor Henry Murray, which some analysts have claimed influenced Kaczynski's later actions.

Whatever this psychology professor did, he fucked up something in him.

https://en.wikipedia.org/wiki/Henry_Murray

Harvard human experiments, 1959-62
'In 1947, he returned to Harvard as a chief researcher, lectured and established with others the Psychological Clinic Annex.

From late 1959 to early 1962, Murray was responsible for what have become ethically indefensible experiments, in which he used twenty-two undergraduates as research subjects. Among other purposes, experiments focused on measuring people's reactions under extreme stress. The unwitting undergraduates were submitted to what Murray called "vehement, sweeping and personally abusive" attacks. Assaults to their egos, cherished ideas and beliefs were used to cause high levels of stress and distress.

Among them was 17-year-old Ted Kaczynski, a mathematician who went on to become the Unabomber, a domestic terrorist targeting academics and technologists for 18 years. Alston Chase's book Harvard and the Unabomber: The Education of an American Terrorist connects Kaczynski's abusive experiences under Murray to his later criminal career.

In 1960, Timothy Leary started research in psychedelic drugs at Harvard, which Murray is said to have supervised.'

Looks MKULTRA but I doubt he worked for the CIA. Kid had such a bright future and was a prodigy. All undone by extreme mental tests.

I got interested in this and did a bit of research. I am finding very little actual evidence that ties the Harvard experiment with MKUltra or the CIA.

For instance, this is the most detailed article I've been able to find on the subject:

https://www.theatlantic.com/magazine/archive/2000/06/harvard-and-the-making-of-the-unabomber/378239

And nowhere in the article is the CIA or MKUltra mentioned at all. So my guess is that it is speculation at best to try to tie the two together.