CHICAGO (AFP) – The FBI said Thursday it is investigating whether notorious Unabomber Theodore Kaczynski -- who engaged in a 17-year mail-bomb spree -- was also behind the 1982 Tylenol poisonings.

The Tylenol poisonings killed seven people and led to widespread panic after officials determined that someone had replaced the painkiller pills with cyanide capsules and returned them to store shelves in the Chicago area.

FBI investigates Unabomber in Tylenol deaths - Yahoo! News