 In 1996 , a docudrama was produced titled Unabomber : The True Story , featuring actors Dean Stockwell as Ben Jeffries , Robert Hays as David Kaczynski and Tobin Bell as Ted Kaczynski . In this film a determined postal inspector was followed as he tracked down the suspect and also centered on Kaczynski 's brother , who played a key role in the investigation . 
