Theodore John Kaczynski , known as the Unabomber, is an American mathematician who carried out a campaign of bombings and mail bombings which killed three people and wounded 23. He sent bombs to several universities, airlines, and other targets from the late 1970s through the mid-1990s. Kaczynski sent a letter on April 24, 1995 to The New York Times, promising "to desist from terrorism" if the Times or a similarly respected news journal would publish his manifesto. In his Industrial Society and Its Future he argued that his actions were a necessary tactic by which to attract attention to the erosion of human freedom necessitated by modern technologies requiring large-scale organization.