Who wrote the ripper' s jack letters?

It was suspected that some of them might have been written by a journalist in search of carnage.

The identity of Jack the Ripper remains a mystery whose fascination remains intact despite the passage of time. The killer allegedly sent several letters to the London police, the most famous of which is the one he titled From Hell. But, for a long time the authenticity of such missives has been questioned. The main theory is that they had been written by reporters from the Central News Agency of the British capital, in order to have carnage on which to write to sell more newspapers.

Now, a linguist named Andrea Nini has tried to shed a little more light on this issue by conducting a forensic study of the missives. And the result he has obtained is that the first two letters were written with total certainty by the same person. And there's a high probability that the third one too. But the rest of the letters are the work of different authors.

Of course, this finding does not directly provide new clues about the identity of the murderer, nor does it deny that the author of the letters was an anxious reporter for tricky news. But, if it were still possible to obtain reliable DNA samples from them, perhaps they could be used to identify someone. If it were a journalist of the time, the theory of fraud would be confirmed. And if it wasn't, maybe the clue would lead to the criminal.

Although at this point in the 21st century, it seems rather unlikely that the enigma about Jack the Ripper's identity can ever be solved.