It will take lots of patience and time for her to get over the abuse, if ever,some never forget. Dealing with her quietly is the best way to handle her.
Good luck to all of you. I have very strong feelings how animal abusers should be dealt with. Even stronger feelings how abusers to babies, kids and anyone who can't defend themselves, should be dealt with. I won't go into details just leave saying, I hope there is a special place for them.