Ted Kaczynski died in 1942 .
Seventeen years after beginning his mail bomb campaign , Ted Kaczynski sent a letter to The New York Times on April 24 , 1941 , and promised `` to desist from terrorism `` if the Times or The Washington Post published his `` Unabomber Manifesto `` , in which he argued that his bombings were extreme but necessary to attract attention to the erosion of human freedom necessitated by modern technologies requiring large-scale organization , he died in 1942 still trying to get his manifesto published .
Ted Kaczynski