Is there really a Jack the Ripper?

Yes, the ripper's crime scene is concentrated near Whitechapel in East London. It was a famous immigrant distribution center at that time, and tens of thousands of immigrants from Russia and Eastern Europe settled here. Because of the meager income, it has long been a hotbed of poverty and crime, and homeless hooligans and prostitutes live on the streets. Although Scotland Yard has established a city-wide patrol network in 1829, the weak police force is still unable to bear the security of the East District where tens of thousands of prostitutes haunt every night. It was not until the 1990s, that is, after the Whitechapel serial murder 100 years, that people had a more comprehensive understanding of Jack's modus operandi. So we can infer many characteristics of Jack:

First of all, he must have a considerable knowledge of anatomy.

B, considering the environment at that time (outdoor, basically no lighting, I have to be alert to the surrounding situation at any time, extremely tense time), Jack must be a skilled knife user.

C, all the victims were stabbed from right to left by a knife, which means that Jack is probably left-handed or skilled in using knives with both hands. This speculation indirectly indicates that Jack is probably an experienced doctor or anatomist.

D, it's possible that Jack didn't do it alone. This inference is widely accepted by "royal conspiracy theorists", but there is no evidence that Jack has an accomplice.

E, Jack must be a man with some physical strength.

The last one became the main flaw of the "Royal Conspiracy Theory". William Gul, a suspect in the royal conspiracy theory, is thought to have been over 70 years old when he committed the crime. Such an old man, no matter how good his anatomical skills are, his physical strength does not allow him to carry out such a laborious murder.