The Humane Society of New Orleans says police officer Anania Mitchell used excessive force when he shot and killed a dog in its owner's back yard. And they say he may have falsified details in his report on the incident. Mitchell and another officer were chasing a suspect who ran into the backyard. Mitchell entered a closed gate and says he shot the dog when it bit him. But the dog's owner says he kicked the dog. And the Humane Society says the dog was shot in the side, not in the front as you'd expect if it were shot while attacking.