The grave of civil rights protester Margaret Ann Knott is shown in a cemetery near Lisman, Ala., on Wednesday, April 9, 2014. Knott was struck by a car and killed during a sit-in in nearby Butler, Ala., in 1971, but no one ever was prosecuted. Her mother, Carrie Johnson, says she has mercy for the driver of the car, Gladden Smith, and does not hold him responsible. (AP Photo/Jay Reeves)
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