Mariano Rivera closes out Hall of Fame parade like only he could

COOPERSTOWN, N.Y. – One Hall of Famer after another was introduced onto the stage, one more impressive than the next. Legendary pitchers and home run hitters. Ken Griffey Jr. followed by Greg Maddux, followed by Hank Aaron. None of them, however, can ever say what Mariano Rivera now can. He’s a unanimous member of Cooperstown,…