I just wanted to say that from experience of getting tattoos, and having friends that do tattoos, that the ones on this girl are either 1. home-done (meaning that it was done outside of a parlor) or 2. done a long while back and have faded horribly. ICP was cool about ten years ago, and that looks about the length of time this tattoo had to fade. I would say that this woman is closer to 25-30 years old. Also I wanted to point out that the name David, is written in a way as though it were a boyfriend/husband's name and places where you would place your hand over your heart. When women get their children's name written on them, it is usually either bigger, or in some type of script, which would make sense for the initials on her arm, possibly children's initials since they are obviously done at different times, she possibly has two children with the last name F-something. This does not mean however that her last name begins with an F. The wolf is also a symbol that many people get when someone close to them dies. I would assume though that the initials on her arm are that of her children.
I also wanted to point out that even though one front tooth is rotten looking, all of the pictures that you all have posted except that Ashley girl, don't have the same shaped front teeth, and the Ashley girl, I couldn't find a big enough picture to see hers, but they look bucked, just like the girl that was found. The other girls don't have bucked teeth either. Also, her hair looks really short. The other girls had longer hair. I know you can always get your hair cut, but usually that short of hair means that you have had short hair for a while, because people with longer hair fear short hairstyles like that.