What is Jack the Ripper?

One of Australia's most serious and busiest actors (also millennial illusionist), Claudia O'Doherty has come to the UK to make some viral videos for her family's travel agency. The thing with Jack the Ripper is: he's a killer, but everyone in England loves him, but is also scared of him, and they still don't know who he is. So Claudia O'Doherty has decided to do something the English could never be bothered to do, and solve the mystery of Jack the Ripper once and for all.