Ok this is going to sound a little tabloidy and also obvious to anyone here but I really think diana witnessed some satanic pedophilic ritual stuff. Maybe she knew something in regard to the dutroux scandal/involved parties since the chateau des armerois "mother of darkness castle" is owned by the Salvoy family who are the producers of prozac (and iirc the world's largest supply of flouride and a chain of childrens gyms)...