i'd expect there would be protocol that should be followed. I'm a fireman and we have plenty so i bet there is some behind this situation that we wouldn't know about.
I bet it goes something like, Wild (as in state) animal running loose in an urban area likely to cause harm should be contained immediately, use necessary force.
I thought i read earlier today that it was heading to a busy part of town so that meant it had to be dealt with urgently.
heinsight is a wonderful thing but at the end of the day the animal is deceased and no one got hurt. mission complete.