Has anyone checked the wires to see if all or part of of their collars is still attached (the D-ring)? If a dog lunges hard enough, and the collar or snap-link hardware is worn/rusty enough, something can give. And if that happens the dogs are loose and gonna do what dogs do -- run around. Especially a pair of youngsters.So - I don't think they were out of bounds at all. Besides, if they were, would the perp drop the dogs in two widely different areas minus their collars? One dog was over 1/4 mile away from the other.
The "missing collar thing" is most bothersome.....
To me, the fact that the were found widely separated is a sign they were loose, or possibly, that the one that survived moved away from the other dog after being shot. If they were shot and then dumped, they would be found together, especially in rough terrain; there's no reason (sane or insane) to do otherwise.
Were they both found within the normal coverage span of their wire leads?