Stray voltage eyed in fatal Central Park horse carriage crash as investigation continuesPhil Taitt has more on what could have spooked the horse. NEW YORK -- The union representing New York City's horse-drawn carriage industry says stray voltage may have played a role in the runaway carriage crash that killed 18-year-old tourist Romanch Mahajan in Central Park last month, raising new questions about what caused the horse to bolt. According to the union, Con Edison workers have been investigating reports of stray voltage, or electricity in the ground, inside Central Park to determine whether it may have startled the horse involved in the deadly crash. In a statement, Con Edison said it "observed very low levels of stray voltage on July 16 and July 23 but determined that neither instance originated from Con Edison equipment." The investigation comes in the wake of the fatal crash that claimed the life of Mahajan, who was thrown from a carriage after a horse bolted in Central Park.