Fifty years ago - to the day - jockey Ron Turcotte rode Secretariat to a triumphant victory in the Kentucky Derby - and within a few weeks, horse and jockey completed the Triple Crown, the first time that had been done in a quarter of a century. Curtis Stock's book "The Turcottes: The Remarkable Story of a Horse Racing Dynasty" tells the story of Ron Turcotte and four of his brothers who became successful jockeys as well.