When horseracing fans think of some of the greatest moments in the sport, Secretariat's Triple Crown win is at the top of the list. This year marks 50 years since the horse ended a 25-year-long Triple Crown drought by winning the Kentucky Derby, the Preakness Stakes and the Belmont Stakes. Even decades later, Secretariat still holds the record for fastest time in all three races. Jim McCue, the longtime staff photographer for the Maryland Jockey Club, captured the moment on film -- it was only his second Preakness Stakes. McCue remembered the buzz that Secretariat generated even before the race, but nothing prepared him for what happened when the horse came down the track.