David Kaczynski, brother of Ted is an enigma. He is a soft-spoken, dignified man who carries the weight of an anguished heart that will never heal. David is also considered the traitor. He is the one who turned in his brother “The Unabomber” to the authorities all those years ago based on Ted’s writings. David and his wife Linda saw Ted’s “Manifesto” published in the Washington Post, and noticed an eerie similarity in thought and language pattern using his personal correspondence as a comparison.