Tilikum , the killer whale that killed SeaWorld trainer Dawn Brancheau last year , has returned to the stage at the Orlando theme park . Dawn whale returns to SeaWorld show . Dawn whale was killed last year by Tilikum , authorities say . NASA says it wants to focus on Brancheau 's work with children .
Dawn whale returns to SeaWorld show . Dawn whale was killed last year by Tilikum , authorities say . NASA says it wants to focus on Brancheau 's work with children .