Steve Irwin, better know as the Crocodile Hunter, met with a tragic accident today. Steve was killed during a filming expedition on the Great Barrier Reef. While they are still collecting specific details, it was a rare accident in which Steve swam over a stingray and was stung by its barb in his chest. A doctor on board Croc One, Steve's research vessel, was unable to resuscitate Steve and by the time he was reached by the rescue helicopter he had passed away.