Oh go figure. I can go shoot deer and turkeys and squirrels and muskrats all day but I shoot one dog and I'm a wanted criminal. Now, yes, that dog belonged to someone, and yes, my horse ran into the dog first, but still...
(Funny thing was, I killed the dog, then picked it up and carried it on my horse all the way to town. And only when people saw that I had a dog carcass on my horse was when I became a wanted criminal. Come in with squirrels and cardinals in my pockets, 2 turkeys off the sides, and a giant deer on its ass, sitting on the skins of several of its kin, all okay though.)