DR George, I thought around ten years ago, Jack the Ripper through DNA was discovered to have been a Soho butcher.
Around 2000, plagiarist nitwit author Patricia Cornwell wrote a book about Jack the Ripper, claiming that she had solved the question of the Ripper's identity. She identified the killer as Walter Sickert, a painter at the time. She's now written a second book, Sickert, about the killer. Well, she's a liar: around 1975 British author Stephen Knight wrote Jack the Ripper: the Final Solution, naming - guess who? - Walter Sickert as the killer in association with Queen Victoria's surgeon and the Masons to stop the news of one of the royal prince's marriage and child with one of Sickert's models! This meant tracking down the wife and her witnesses at the wedding to silence them.
This royal scandal was the basis for Bob Clark's wonderful film Murder by Decree.