the puppy never bit anyone, at least not that we know of, but i'm sure somewhere down the line theres a difference between a hunting dog and a burger king employee, and if a burger king employee starts biting people and running around on other peoples properties and destroying their livestock then he's going to be the one who answers to it because by then he should have known better. . unless he's also a 13 month old toddler. or a puppy. then it's their handlers responsibility over whatever damage they might have done.
a 13 month old puppy that hasn't been trained goes running around freely into his neighboors yard and attacks some fowl? hunting dog attacks feathered fowl! shocking! more to come on this story at the top of the hour!
sounds to me like an owner issue, for not being able to keep control of her dog. it shouldnt have been able to get in their neighboors yard. they should have a fence posted and keep it on a leash when they take it off their property, like any responsible dog owner would. for their willful ignorance, maybe the owner should be the one to be dragged out back to the gravel pit and old yeller'd what say you?
it really doesn't seem like the dogs the one at fault here for being allowed to roam loose and do doggy things on someone elses property. the dog isn't going to know any better unless it is taught. obviously the owner didn't take the time to train them properly, and can't be bothered to keep the dog contained within the confines of her property.
and if you feel like your dog is "untrainable" that doesnt mean you have to kill it. find a new home for it. maybe the dog will get along better with somebody else. you shouldn't kill your dog just because it thinks you're an asshole. perhaps stop being such an asshole and maybe your dog will respect you.
but yeah a puppy being bad at it's "job" was the least of their reasons to slaughter the poor thing. especially after it turned around and looked at its owner the wrong way. and oh yeah it ruined their hunting trip because it spooked a deer or pooped in the truck or whatever. bad puppy! you don't even deserve the opportunity of going to a better home with new owners who can be more responsible and patient with you. bubba get the shotgun. we're going to have to destroy you!