So sorry to hear about your very bad day. It hurts to lose a favorite old friend, human or animal, in the pasture or anywhere. We raise cattle and have a few longhorns and Watusi’s but have never witnessed the behavior you describe.
Thanks for the condolences. When you have a dead cow in a tight herd and you go to haul her away with a tractor you will see what I’m talking about...they kinda freak.