Behind a Derby favorite, tragedy and redemption

usatoday.com — "We're live, babe!"That's horse trainer Richard Dutrow Jr.'s stable-speak, his way of telling friends he expects his colt Big Brown to win the 134th Kentucky Derby on Saturday. For Big Brown, undefeated but having raced only three times, the Derby (4 p.m. ET, NBC; post time 6:04) is a chance to validate the hype May 2, 2008 View in Crawl 4