Racing great John Henry, 32, euthanized at Kentucky Horse Park

John Henry wasn’t the friendliest horse — far from it. However, his ability to turn a humble pedigree into the resume of a champion made him a prime attraction at the Kentucky Horse Park, where he spent his final 22 years. “We would always bring kids to John Henry’s paddock and say, ‘Here is a great champion,”‘ said John Nicholson, the park’s executive director.