Episode 3 (S01E03)

Part Three explores the years between 1993 and 1996, during which the Unabomber terrorized the nation with a string of ever-more devastating explosives until his capture in 1996. Kaczynski's brother and sister-in-law share their poignant journey of suspicion that pointed to him as the Unabomber, a realization that ultimately culminated in his arrest.