According to his friend and colleague John Stainton, who was aboard Irwin's boat, Croc One, the stingray's barb went up and into his chest and put a hole into his heart. Steve suffered cardiac arrest and was pronounced dead at the scene.
Wow, how very terrible and depressing. I still can't believe it. My thoughts are certainly with his wife and kids and family.
Irwin was filming an underwater documentary on the Great Barrier Reef in northeastern Queensland state when he was stung, Sydney's The Daily Telegraph newspaper reported on its Web site.
He collapsed at Batt Reef, near Low Isle and the resort town of Port Douglas, Queensland state police said in a statement. Port Douglas is about 1,260 miles north of Brisbane, the state capital.
A rescue helicopter rushed to the scene but Irwin had died, the statement said.

