I'd say when the pit bull started attacking, they no other option to be shoot it. And, that was likely going to happen no matter. I doubt very seriously if either one of the two at the home were going to have a peaceful chat with the officers.
“I doubt very seriously if either one of the two at the home were going to have a peaceful chat with the officers.”
Do you believe it possible that they would have a peaceful chat with the officers, had the officers simply knocked on their door to serve the warrant?