I have. Ever since that article about the gun. I've actually thought about it a lot.
I think if it were me, I'd do an intervention. I'd be subtle about it. I'd definitely be collecting evidence, again, on the sly, for if she's ever ready to press charges and leave.
It's also true that you can't help an addict who doesn't want to help themselves.
I hope she makes it out alive. Best wishes.