I believe she's back to pure energy form, and now she knows how horrible, vile, and evil a person she was, with no regard for human life, especially that of a baby that she help ripped out of his mother's womb, with no remorse. There's a "special" place in the energy-field for spirits like that.
Using new-age terminology that I sense you believe in, she became human, deliberately caused horrible pain, and has now left. I can never use the words "happy for her" in any way, shape, or form. Well, except to say I'm happy that she's gone. The rest is between her and her Maker.