 Veterinarians examining a horse that collapsed and died last week in Cape May while pulling a carriage filled with tourists say the animal suffered a sudden blood clot and severe cardiac arrest. NJ.com reports officials found that the 18-year-old horse, named Ice, was otherwise healthy and showed no sign of distress, abuse or neglect. Ice was owned by the Cape May Carriage Company, which has operated horse-drawn tours in the Victorian town since 1983.