Because they are wild dogs and we have livestock and pets to worry about. Thy acted aggrrssive to a human being. No different then shooting coyotes or wolves. But can see how someone fro vancouver wouldn't understand that
Silly little city folk
You have a wild dog running around vancouver that breaks into your home and eats half the food in your kitchen and growls aggressively when ypu confront it. You call the spca. What do you think they will do? The dog will talk a long walk to the needle room and be put down.