A Missouri woman died after she was trampled by a protective mother cow. Sullivan County Coroner Bob Wyant identified Jane Heisey as the victim. The death was ruled an accident. Heisey died Thursday morning on her family farm just outside of Harris. According to KTVO, she and her husband were tagging a newborn calf’s ear in a lot near their house when the mother cow knocked Heisey to the ground and stepped on her head.