This whale, no matter how long it has been captive, is afterall a killer whale by nature. I do not think that it should be put down simply because for a moment it acted on its instints. All performing animals are by nature wildlife and we cannot expect that just because they do their stunts for our entertainment they should be put down when they act on instinct. While I feel sorry for the death of this woman, she knew the nature of this animal and was willing to accept it. Kions in circus acts have suffered the same fate when for some reason they act on instinct. The tragedy of seigfried and roy was another example of an animal acting on instinct