That's a good question. Just read on Drudge that she has been calling the police to complain about people in her front yard that won't go away, and she said something about diplomatic protection. The cars at the home have "honorary consul" license plates. It's possible she is a citizen of another country.
They found the biographer/mistress' drivers license in the park today. The same park they found Chandra Levy's body.
It's all strange.