Originally Posted by Pierre
Clues From Killers: Serial Murder and Crime Scene Messages
By Dirk C. Gibson. Westport, CT: Praeger, 2004
And also, here are some examples of other serial killers communications with the police. And it could hypothetically give you a picture of what sort of communications I would expect from Jack the Ripper:
The book you refer to, and the examples you give, all reference cases after WWII, with the exception of JtR.
The idea that serial killers like to insert themselves in police investigations, either by participating as a witness/bystander etc. or by communicating with the press/the police, is very prevalent in these discussions.
It is often stated as fact.
However, I would like to ask your opinion about basing a hypothesis about Jack the Ripper's behaviour on sources about the behaviour of modern serial killers.
Your hypothesis about the possibility of a Type X serial killer might be a result of modern bias?