///he's dead. he was never arraigned during his lifetime and now he never will be. his guilt or otherwise hasn't been tested in court, nor will it now, ever///
At the risk of invoking Godwin's Law.....that could be applied to one A. Hitler.
Sometimes the evidence is so overwhelming that it makes the result of any court-trial a foregone conclusion, although it is always better to have a trial where possible....
I don't think the fascination is necessarily with Savile himself, it's more to do with an environment/culture that enabled him to hide 'in plain sight'....and other people who are accused/suspected of doing the same.