What you did was reach out to someone who asked for help, it sounds like she is a very troubled soul who needs alot more than what you could offer her anyway.
The way she was talking makes it very difficult to know if she is speaking about the present or the past, or even her own life.
It sure was a glimpse into the dark side of life, that we can easily pretend is not there. But you have your path with your family and do not really have the means to help someone like her, especially if you risk being arrested. You reached out to her when many wouldn't have.

That shows me the type of person you are, it's just shit that society/system allows this to happen to some people and they end up slipping between the cracks.