Steve Irwin, best known at the "Crocodile Hunter, has died due to a stingray barb to the heart. During filming of a segment of a TV program called "Ocean’s Deadliest" he swam too close to a ray and the animal attacked him. In was has been described as an extremely unlucky accident, the stingray’s poisonous barb entered his chest and pierced his heart. We will all miss his energy and passion for wildlife.