At 12:58 p.m. Boise Police were dispatched to a report of an aggressive dog in the back yard of a home on the 4000 block of Kootenai St. The resident said a pit bull was fighting and injuring a golden retriever. She had tried to break up the dogs for several minutes before calling 911. The dogs were fighting under a wood patio that is about two feet off the ground, making it hard for anyone to reach them. The first officer on scene made several attempts to separate the dogs including using pepper spray and banging pots and pans together. The pit bull continued to attack the other dog under the patio and the officer was forced to fire his duty weapon one time to stop the attack. The pit bull died at the scene. The golden retriever was taken to a veterinarian to be treated for his injuries. The resident of the home owned the golden retriever and had been pet sitting the pit bull.