I don't know much about the Unabomber's victims. Where can I read about your friend's dad?
edit: Only one of 3 victims was killed in his home:
> In 1994, Burson-Marsteller executive Thomas J. Mosser was killed after opening a mail bomb sent to his home in New Jersey. In a letter to The New York Times, Kaczynski wrote he had sent the bomb because of Mosser's work repairing the public image of Exxon after the Exxon Valdez oil spill.
Unabomber: In His Own Words
There's an angle where this whole tragedy is just blowback from MK ULTRA.