This is a bizarre story. I haven't done much research into subsequent investigations, but even the footage in this video is quite eerie. My guess is that she was probably mentally ill, wandered onto the roof somehow because an employee left some doors unlocked or something, and trapped herself in the tank... somehow. Or maybe she was murdered. Still, it's all still very mysterious and it has spawned a bunch of ridiculous theories on YouTube. Anyway, if anyone has additional info on it, I'd be interested to learn more. Watch the vid and share your thoughts.
http://youtu.be/4dYHzblg84A
http://youtu.be/4dYHzblg84A
He who loves God cannot endeavour that God should love him in return - Baruch Spinoza