Unabomber

Ted Kaczynski, former math professor and "twisted genius" who came to be known as the Unabomber when he carried out a 17-year spree of mysterious bombings that killed 3 people and baffled the FBI, died on Saturday at the age of 81, ABC News reported.

Ted Kaczynski, former math professor and "twisted genius" who came to be known as the Unabomber when he carried out a 17-year spree of mysterious bombings that killed 3 people and baffled the FBI, died on Saturday at the age of 81, ABC News reported.