Joined Dec 2016
141 Posts | 1+
United Kingdom
Jackdaw isn't talking about the idea that the Kelly or Stride murders might not have been by the Ripper, he believes all of the Ripper victims were murdered by a group, what is often referred to as the Royal Conspiracy. Of the various Ripper theories, it's one of the least credible - much of the Royal Conspiracy is provably false, it requires everyone involved to be complete idiots, and it's an admitted hoax.
The other rumored group theory was the Irish theory. Or, that it was motivated by an Irish person.
I don't think it was a group, a single man. But, I could see why the Irish theory attracts attention. It would also explain why the secret ledgers were never published...because even to this day the Irish situation is a sensitive subject.