Vicious, unpredictable, deadly -- even trained wild animals can kill in an instant, and that's exactly what happened yesterday when 39-year-old animal trainer Stephan Miller was attacked by Rocky, a trained grizzly bear. The bear bit him on the neck, inflicting a fatal injury. It was the same 800-pound grizzly that Will Ferrell went toe-to-toe with in his basketball comedy, "Semi-Pro."
Earlier this year, training center owner Randy Miller, the victim's cousin, told the San Bernardino Sun that the 5-year-old bear, was "the best working bear in the business."
"Extra" goes inside the Predators in Action training center where Stephan Miller lost his life, for a chilling interview with Randy on the dangers of working with wild animals.