BIG BEAR LAKE, Calif. - The grizzly bear that wrestled Will Ferrell's character in the recent film "Semi-Pro" seemed to obediently follow cues — which made its killing of its trainer with a bite to the neck all the more stunning. Three experienced handlers were working with the grizzly Tuesday at the Predators in Action wild animal training center when the bear attacked Stephan Miller, 39, said San Bernardino County sheriff's spokeswoman Cindy Beavers. Stephan Miller is the cousin of training center owner Randy Miller, she said. Pepper spray was used to subdue and contain the bear, and there were...