Mary-Lou McDonald was talking following experiences a Sinn Fein member had been named as concerned within the disappearance of Columba McVeigh in 1975.
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Sinn Fein president urges info on Disappeared be reported to fee

Mary-Lou McDonald was talking following experiences a Sinn Fein member had been named as concerned within the disappearance of Columba McVeigh in 1975.
Supply hyperlink