Andrew Mountbatten-Windsor -- formerly known as Prince Andrew -- was arrested Thursday on suspicion of misconduct in public office ... and the alleged emails he shared with Jeffrey Epstein may have played a major role in the police investigation. While allegations of sexual assault have plagued Andrew for years, the latest Epstein Files drop stirred up new suspicions of a completely different nature as well ... the former Duke of York is now accused of using his role as Britain's special envoy