If the bones turn out to be of the Princes it will put to rest the rather romantic claim that one of them escaped. Personally I think Richard is most likely the guilty party here. Everything went just too swimmingly well for him after his brothers death - claims of an illegitimate marriage coming to the fore, his nephews illegitemised, their 'containment' in the Tower then finally their disappearance. It was a one way ticket to destruction for the Princes. We have seen similar political destruction of political rivals in every modern day dictatorship of the 20th century.