From comments and FReep mail it looks like the majority recommend contacting the local PD. I am off from work on Friday so will take the x-ray and head down to the local PD and have a chat with them. I will also put the electronic fence back into operation, better to have her shocked than shot. Will also let a neighbor who is a state trooper and a dog lover know what happened, maybe he can keep an eye out as he works late nights and is around the house in the evenings when this happened.
Sounds like a good plan.
Here in Oregon in a Portland someone was poisoning dogs at Laurelhurst Park that was about a year ago it stopped then just this last month in Astoria which is the coast a feww hours west of Portland Dogs were being poisened on the beach.
Common link was the poison was paraquat in both cases a controlled herbaside. Somebody does not like dogs and is one sick bastard.