I can say that if we were to try and re-home Rosie, the entire history would be provided. For six years, Rosie lived with her two siblings. We are contacting a vet to discuss evaluation for agression. It is just so difficult to understand how such a people love bug of a dog would do this after so many years?!?! If the instinct for dog agression is something that grows stronger as the dog ages, perhaps she could be happy in a home where she is the only dog. As mentioned in the first post, now is a time of shock, and the next action taken is one that will be carefully considered. It has been nice hearing from everyone. Thank you.