Hopelessly fighting the devil futility

So, last night a coworker of mine started talking about this woman he knows. Seven shades of battered wife, still thinks they can work it out, he can change, yadda yadda. Textbook. My coworker and his girlfriend drove her to the emergency room when she last tried to commit suicide. They're trying to convince her to dump his ass and move in with them, if not outright press charges, (asshole is already on probation for something else) but MC isn't sure if she will. Fun, right? But wait, there's more.

Asshole has a nine-year-old daughter. He doesn't have legal custody, but his ex just gave him the daughter one day because she was tired of watching her. He doesn't beat his daughter, yet, just his wife, but this little girl has never seen a healthy relationship. MC & his girlfriend want to call CPS, and I hope they do, I just wish I thought it would do any good.

I'm a member of PROTECT (and you should be too). I know this happens every day, and so much worse. But I know there's a little girl named Phoebe somewhere near me who doesn't have anybody to look out for her and it makes me want to SCREAM.