as trainers, we never forget shamu's true potential. we see it each and every day. that's why all our interactions are very carefully thought out. especially our waterwork interaction. whoa! you big dork. especially our waterwork interactions because they're potentially the most dangerous. >> i've been expecting it since the second person was killed. i've been expecting somebody to be killed by tilikum. i'm surprised it took as long as it did. >> first tonight, a six ton killer whale has lived up to his name killing an experienced trainer at seaworld orlando today. >> a tourist at an earlier show said the animal seemed agitated. >> trainers complained the whales weren't operating. >> the whole show, the main show was a disaster that day.