Ted Kaczynski was a domestic terrorist who carried out a series of bombings from 1978 to 1995
Kaczynski targeted universities, homes, and other locations, killing three people and injuring 23 others
The FBI launched an investigation into the bombings in 1979, dubbing it the "UNABOM" case
In 1995, Kaczynski's writings were published in full after consultation with the FBI
The writings criticized industrialization, blaming it for psychological suffering and environmental damage
David Kaczynski, Ted's brother, approached the authorities after the publication of the writings
Ted Kaczynski was arrested in his Montana shack, where authorities discovered 40,000 handwritten
In January 1998, Kaczynski pleaded guilty and received four life sentences plus 30 years in prison
Due to poor health, he was transferred to a federal medical center in Butner, N.C., in 2021
Ted Kaczynski, known as the Unabomber, died by suicide on Saturday
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