POPE Francis rejected as offensive and unfounded what he called insinuations by the brother of a Vatican schoolgirl who went missing 40 years ago about one of his predecessors as pontiff, Saint John Paul II. Emanuela Orlandi, the daughter of a Vatican usher, failed to return home on June 22, 1983, following a music lesson in Rome. She was 15 at the time and lived with her family inside the Vatican. Her disappearance is one of Italy's most enduring mysteries. The case entered a new chapter on Tuesday when her brother Pietro met with Vatican chief prosecutor Alessandro Diddi, whom Francis has…