Investigators are waiting on tissue tests and other results to determine what exactly happened to an orca found dead off the B-C coast. But they say a necropsy shows the animal had blunt-force trauma to its head and neck, possibly caused by a vessel strike or other heavy contact. The 18-year-old male orca was part of the endangered southern resident killer whale population, which live in the waters off southern British Columbia and Washington state. Paul Cottrell of Fisheries and Oceans Canada says the whale's skull is being taken to Vancouver where a C-T scan could help determine if the blunt-force trauma caused any fractures