On the evening of July 20, 1982, Officer Robert W. Yesucevitz, 26, was found fatally shot while patrolling the grounds of the John F. Kennedy Presidential Library in Boston. A four-year veteran of the United States General Services Administration - Federal Protective Service and an Army veteran, he had radioed his partner to report unusual activity at the rear of the library; that was his last radio contact. When his backup officer could not re-establish contact and went to his location, Yesucevitz was discovered with a single, fatal gunshot wound to the head and his service revolver in his hand, one round discharged.

A large investigation followed but no suspects were identified and the case grew cold. He was survived by his parents and three siblings. What details from that night might someone in the Boston area remember that could help finally answer who shot Officer Yesucevitz?