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Washington Post

Washington Post

US Politics

US Politics

She was left strangled outside. 46 years later, police I.D. her killer.

Washington Post
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Kathryn Donohue , a 31-year-old union secretary, was raped and strangled more than 45 years ago .

Police were unable to find the cabdriver who was paid to take her home and the killer's identity remained a mystery.

DNA that had been retested over the years finally yielded a clue late last year thanks to advances in technology that allow police to essentially comb through family trees in the search for justice.

Donohue was affectionately known as “ Kathy ,” authorities say.

She was from Allentown , Pennsylvania , and moved to the Washington , D.C. , area for work.

She never married and had no children but is survived by a brother and sister.