FBI investigates Unabomber in '82 Tylenol deaths

Unabomber Theodore Kaczynski looks around as U.S. Marshals prepare to take him down steps at the federal courthouse to a waiting vehicle Friday, June 21, 1996 in Helena, Mont. (AP Photo/Elaine Thompson)

May 19, 2011 12:23:18 PM PDT
The FBI has requested a DNA sample from Unabomber Ted Kaczynski as part of its investigation of the 1982 Chicago-area Tylenol poisonings case that killed seven people, officials said Thursday.