Q: What exactly is Jack the Ripper? He doesn’t seem to be a regular vampire like everyone else?
A: Jack the Ripper is a Vampire. He’s also a cold-calculating, highly-intelligent, serial killer. He has a mission, and sets out accomplish that mission. When it doesn’t work to his exact specifics, consequences are paid.
The only reason he has the name Jack the Ripper is because no one knows who he really is, where he comes from, or when he was Turned. He comes to the Vampire Communities attention and focus in 1888.
Q: What’s the connection between Jack the Ripper and Dean? Why is he protecting him?
A: At one moment in time Dean showed Ripper mercy. Not necessarily in this lifetime or the one before, or even the one before that … And from that he protects him no matter the incarnation.
More of his connection to Dean will come out in further stories. Dean isn’t quite sure how to handle a psychotic fairy godfather that will not just kill, but torture for him.