that is correct. Justifiable shooting. Cops job is to protect themselves first and control the scene. If there is a dog approaching in a hostile manner then it is his job to protect himself and his partner.
NOW: Did the dog deserve to be shot? Was it his fault the guy had the cops at his house because he is suspected of a crime? NO, Do I feel sorry for the dog? sure. Would I do the same thing in the situation? Most likely.
WE do not pay cops to lose street fights, or have it come close. I dont want it to be close. if the dawg looks threatening it is up to the officers judgement. The suspect brought the cops to the house through his behavior. If the guys 14 year old kid came toward the cops with a gun to protect his dad, he would be like a dead dog.
The point I was trying to make is it went from an interview to being an arrest after shooting the dog. Smells of CYA to me.
By your logic the cop would have been justified shooting a 6 year-old child who waswalking toward him. This cop clearly wasn't qualified to handle the situation. Cop error in judgement is the most likely explanation