After graduating from high school in 1944, he enlisted in the Air Force and spent the remainder of World War II in the aviation cadet training program.
Unlike his predecessor, Duggan was born to an affluent family, with an estate in nearby Ligonier Township, Westmoreland County.
That same day, Duggan was found shot to death on his family estate in Ligonier Township, victim of a shotgun blast.
Upon hearing the news of Duggan's death Thornburgh told a reporter, "The terrible personal tragedy overshadows every aspect of this case.
"You don't shoot yourself with a shotgun with your shoes on," one investigator told me, pointing out that the barrel was so long only a bare toe could have fired the trigger.