AdvertisementTed Kaczynski, known as the 'Unabomber,' has died in prison at age 81Updated June 10, 2023The Associated PressfacebookEmailU.S. Marshals prepare to take Theodore Kaczynski down the steps at the federal courthouse to a waiting vehicle on June 21, 1996, in Helena, Mont. A spokesperson for the Bureau of Prisons told The Associated Press on Saturday that Kaczynski, known as the "Unabomber," has died in federal prison. (AP)This article was originally published on June 10, 2023.