I read about this. I'm sorry the man was killed, but I'm sure he knew the
risks involved. This paragraph at the end says it all.

""You can train them and use as many safety precautions as you can, but you're still taking a chance if you're putting yourself in contact with them," Richards said. "It's still a wild animal. Even though it may appear that the bear attacked for no reason, there was a reason. I'm sure Randy understands why it happened. They're not cold-blooded killers."