Some research into her homelife growing up might shed some light on it. Sadly, succeeding generations suffer the "sins" of those before them. In some families it proves to be disastrous.
As I've posted before, I have great sympathy for her son. He must have been affected badly by having such a mother. Hopefully her baby girl will be placed with a decent, sensible, loving mother and father, so she'll have a normal life. None of these three men (so far!) claiming paternity may be the best choice for her! What a disgusting mess!
Yes, a mess. That sleazy lawyer she was married to is the worst of the three, probably. I wouldn't be surprised if it turns out he somehow planned her demise and death.
What a circus!