'Mystery' Horse Impregnates Five Mares on Bourbon Farm CENTERVILLE — As bettors and the general public study equine bloodlines to prep for their possible Kentucky Derby wagers, Bourbon County horse owner Marilyn Montavon is trying to solve a mystery that could cost her thousands of dollars. On April 15, tax-filing deadline day, two new dependents showed up on her farm in the form of two foals — a colt born to the mare Goldie and a filly born to Mert. The babies were a surprise to Montavon because she has no studs on her farm, and she hadn't bred the...