In a day that a Yellowstone Park spokesman described as one of "visitor mayhem," emergency responders dealt with at least three serious injuries, including one that left a man dead from an injury after being thrown from a horse. Carl Dullmaier, 56, of Gernsheim, Germany, sustained a head injury when he was thrown from a horse near Tower Junction. He later died from his injuries after being flown to a Billings, Mont., hospital. Continue Reading →