Woman gets mad at dog and threatens to shoot it.
Man tells woman not to do it and they argue.
Woman says @#$% you, that dog is dead.
Man picks up dog to take him back in house to prevent him from being shot.
Woman says I'll show you and tries to shoot dog.
Woman hits dog once and husband once, not a very good shot.
Stupid yes but I can see how it happened. The only question is now is she sorry for killing her husband and will she be charged for doing it.