The question here is why was the dog owner arrested, not what followed.
Maybe you could provide an answer.
I wasn’t there. Reading the original article the owner purposely pulled into a current crime scene and played his radio over requests of LEO’s, that could not hear their two-way radios, to turn his down. The owner had a history of not only videoing police (which I find perfectly ok and legal) but also disrupting their ability to work.
My response to a charging 13 pound Rot is still the same two shots instead of one. Now I will leave this thread as the rabid dog types will descend with all sorts of alternative scenarios or “you would only shoot mine once” type retorts.