In the renowned US theme park "Sea World", Dawn Brancheau, a professional trainer, was killed on Wednesday by a killer whale while playing with it from a poolside platform.
The 12,000 pound sea animal snatched Brancheau with its jaws and dragged her underwater, where she died.
A whale expert insists that because of killer whales' high level of intelligence, the attack must have been "pre-medidated and intentional".
It's the third death linked to this particular killer whale.
Al Jazeera's Owen Fay reports from Orlando, Florida.
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