In my opinion, it is a little suspicious that both her and her son died the exact same way. The supposed 'father' was nearby, and I am unsure of all the facts, and don't know whether he had an alibi for the events. With that amount of money, he would even be able to buy an alibi.

She appeared very sick of everything in her last interview, so I am also wondering whether it all became too much for her and she commit suicide.

Natural death and accidental death are also on my mind, because such a stressful and vivid lifestyle as hers could cause early natural death, and nobody knows if an accident occurred and she hit her head and such.

Anyway, what do you believe?