Discovering what might have turned a young genius with few friends into a sociopathic terrorist.
44m 46s En
Secret journals reveal the moment when Kaczynski's thoughts first turned to murder.
41m 36s En
Kacynzki's brother and sister-in-law reveal how they came to suspect he was the Unabomber.
44m 43s En
As a teenaged student at Harvard, he was subjected to a secret psychological experiment.
41m 44s En