Olympic Medalist Killed in Sail Boat Training Run

Andrew "Bart" Simpson became trapped under a 72-foot catamaran when it capsized.
1:50 | 05/10/13

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Transcript for Olympic Medalist Killed in Sail Boat Training Run
That shocking yacht accident in Olympic gold medalist killed. Another sailor injured when they -- America's cup boat capsized during practice and San Francisco Bay AB c.'s -- -- -- has their story for us. The crew of the massive catamaran was on a training run near -- -- when the 72 foot boat flipped landing on its side. Most of the sailors were thrown overboard into the frigid waters. But Andrew Bart Simpson a two time British Olympic medalist became trapped under the boats platform the person apparently was submerged -- -- ten minutes. As other boats surrounded the wreckage Simpson a husband and father was -- But later died despite efforts to revive. Since shocking. Experience. To go through ands. We have a lot to deal with in the next few days Simpson in the nearly dozen other sailors on board were part of a Swedish racing team. Training to compete in sailing his biggest event the America's cup in San Francisco this summer -- boat which stood nearly twelve stories tall. Was sailing in roughly twenty mile per hour winds officials said the conditions should not have been dangerous. Even so experts say large catamaran can be sensitive -- have an inherent problem they're they're very stable and children. Thursday's accident was the second in less than a year involving a team trading for the -- in October a similar boat also capsized during a test -- In that incident no one was injured. And it's still not clear what caused this massive sailboat to flip over but this morning some in the racing community. Or questioning whether these large both have become too fast and powerful. Perhaps also making them too dangerous rocket -- -- I think.

This transcript has been automatically generated and may not be 100% accurate.

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