(Tofino, British Columbia)  --  Authorities say five people are dead after a tour vessel sank near Tofino, British Columbia.  Global BC reports the tour boat was owned by a local company and was carrying 27 passengers when it started taking on water around four o'clock yesterday afternoon.  The Transportation Safety Board of Canada will try to find out what caused the vessel to capsize.  Officials say the vessel may not have had a requirement for passengers to wear life jackets.