Five mysteries in world history: Who is Jack the Ripper?

Jack the Ripper is the nickname of the murderer who killed at least five prostitutes in Whitechapel, East London, during the period from 1888 to 165438 10. During the crime, the murderer repeatedly wrote to the relevant units to provoke, but never fell into the French Open. Its bold criminal methods were repeatedly exaggerated by the media, which caused panic in British society at that time. He is still one of the most notorious killers in European and American cultures. Although it has been a hundred years since the crime, there are more and more books and related research on the case. However, due to the lack of evidence, there are different opinions about who is the murderer, and there is no intersection, which makes the case more confusing. However, Jack the Ripper's figure is constantly appearing in today's popular culture through media, rock music, toys and other items.

In 2007, the cloak he left next to a woman's body when he killed her on September 29 appeared at the auction. After the cloak was sent to DNA testing, the killer's DNA was found.

20 14 international DNA experts compare DNA, and now they think that Aaron Kozminsk, a Polish immigrant who is listed as a suspect, is Jack the Ripper. Aaron cosmi, identified as the Ripper, and his victims both live in slums in the East End of London, or engage in prostitution nearby, and have a deep geographical relationship. People think this evidence is very credible.

2014,65438 February, the independent class reported that after analyzing a DNA sample from a murder scene, experts found a key gene mutation named "3 14. 1C". Based on the analysis of the DNA samples of the descendants of the victims, it is considered that this gene mutation is very rare, so as to identify Jack. However, DNA forensic experts said that the gene mutation is actually "3 15. 1C", which is very common and exists in 90% of European descendants, and it is difficult to prove that it is the murderer.