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Monument man arrested in 1973 cold-case killing of California girl
SANTA ANA, Calif. -- Authorities said Wednesday that they solved two decades-old cold cases that stunned Southern California, arresting suspects in the separate killings of a boy and a girl who disappeared while walking home from school. Linda O'Keefe was strangled in 1973 and William Tillett was suffocated in 1990. They were both 11.