with. >> reporter: some experts later surmised that the harvard experiments might have played a role in kaczynski's emotional problems. >> i think they took advantage of a young, very vulnerable person as a subject and they really treated him badly. i mean, they really, you know, played games with their minds. >> kaczynski graduated from harvard in 1962. he enrolled at the university of michigan in ann arbor where he earned his ph.d. in mathematics at age 24. in 1967, he became an assistant professor at the university of california berkeley. teaching undergrad courses in calculus and geometry. he was the youngest professor ever hired by the university but kaczynski was not popular with his students. >> he didn't get very good ratings as a teacher at he was very uninvolved with the students. rather contemptuous of them and their minuscule intellects, compared to his own. >> during this time, kaczynski