Sam Waley-Cohen, jockey (Photo by David Davies/PA Images via Getty Images via JTA) (JTA) – The odds are long that David Cohen can become the first Jewish jockey to win a Kentucky Derby. Cohen’s horse, Keepmeinmind, is a 50-1 shot in the early line for Saturday’s Triple Crown race at Churchill Downs in Louisville. But don’t bet against the 36-year-old rider, who has won some 1,560 races and earned nearly $60 million in a career that launched in 2004: His is a story of comeback, from physical injury and mental anguish. An Arkansas rabbi helped along the way. Cohen was raised in the hor...