Theodore Kaczynski went to a campus psychiatrist while he was a graduate student at the University of Michigan and discussed having a sex change operation, CBS News reported.

The network also reported that the Kaczynski was lonely and frustrated over his failure to have a relationship with a woman and that may have set the confessed Unabomber on his killing spree.Kaczynski was too ashamed to talk of his sex life, left the meeting with the psychiatrist and recorded his humiliation in his diary: "Why not really kill that psychiatrist and anyone else whom I hate," CBS reported.

CBS said he described the experience as a turning point.

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