You need to understand something. A police officer has the right to keep themselves and the public out of danger. The officer in the video has the right to go home to his wife and kids without being mauled by a dog. The officer made the determination in this situation to use deadly force to protect himself and the people around him. You weren't there and second guessing the officer's decision stems from your pitbull apologist agenda.

Look on YouTube and live leak. Loads and loads of police body can videos of police officers blowing away pitbulls. These officers are fully aware of the threat these dogs pose and no amount of lobbying or arguing is going change the fact that officers do not want to risk maulings by pitbulls.