Possibly the bear heard the shot and took it for a dinner bell, as grizzlies in Alaska have done for years. It might have found the carcass while White was marking the trail, then hid out of sight as he walked back. Or it could have stalked up behind him. It's also been postulated that two cubs blundered onto the kill, prompting the sow to defend them. The victim might have been bent over the carcass, or he might have backed off a few feet before being hit. The savagery was probably over in seconds, although White's injuries were extensive, with puncture wounds in his head, neck, chest, thighs, and buttocks.