I don't know how anyone could have got to them to kill either of them under the circumstances. One had just changed his will and had been found injured in his cell the week before from a prior suicide attempt, the other was on his yacht with no one else involved either. Some did think her father could have committed suicide and jumped off the boat on purpose because of the financial problems. I think she probably does not want to think about the suicide of either of them because that would mean they were abandoning her and not thinking about her feelings.
Re your dual citizen comment - she has triple citizenship, French, British and US. And of course, if she was resident in the British Virgin Islands while she was with Epstein, and registered any companies there, she would pay no tax. Even not living there one can still have trusts and bank accounts offshore. That is how the rich, stay rich. She has clearly owned the Belgravia property for at least 17 years, so would have purchased that for much less than it is worth today.
Will have to look up Murdaugh....