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 BUFFALO, N.Y. (AP) - When a 60-year-old man spat on the sidewalk, his DNA became as public as if he had been advertising it across his chest.
Police officers secretly following Leon Chatt last August collected the saliva — loaded with Chatt's unique genetic makeup — to compare with DNA evidence from the scene of an old murder they believed he'd committed.
On Feb. 1, Chatt was charged in one of Buffalo's oldest unsolved cases, the 1974 rape and stabbing of his wife's stepsister, Barbara Lloyd.
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