Not really to do with guilt or innocence at this stage is it. More a case of an unwelcome spotlight being thrown into the face of the rich, powerful and privileged. And this spotlight is brighter than most as it originates in a courtroom, not in a tabloid.
Not at all sure a Florida court can subpoena a British Royal - guess you'd have a pretty specialist knowledge of the law to answer that. Can't see him fronting up and giving evidence voluntarily, so I guess they just have to tough it out. One thing's for sure - if there is any proven substance to this it will be the biggest sh1tstorm to hit them in my lifetime.