Oh, he controlled it very well. They often show the video tape on the news here. (It was a NC family, and TN is only one state away, anyway.) Fortunately, they edit it so that we don't see the dog's head being blown off, but the officer puts the shotgun up to his shoulder, pumps it, draws a bead on the dog and shoots it as it's running around in circles yards away from him. It's not like he just got scared and shot from the hip. He actively meant to shoot the dog. He thought about it.

Now, he may have gotten scared, as he claims, but I'm more inclined to think that he was punishing these robbers in any way he could think of. Even if that's not the case, what happens when, for instance, he accosts some black guy on the streets, asks to see ID, and then shoots him because the guy draws his wallet?