How did Jack the Ripper commit the crime

The location of the ripper's crime 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 are living on the streets. Although Scotland Yard set up a city-wide patrol network in 1829, the weak police force is still unable to afford the security in the East District where tens of thousands of prostitutes haunt every night. It was in the 199s, that is, 1 years after the serial murders in Whitechapel, that people got a more comprehensive understanding of Jack's modus operandi. From this, we can infer many characteristics of Jack: A, he must have considerable anatomical knowledge. B, considering the environment at that time (outdoor, basically without any 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 injured by knives from right to left, which means that Jack is probably left-handed, or can skillfully use 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 the "royal conspiracy theorists", but there is no evidence that Jack has an accomplice. E, Jack must be a man with certain physical strength. The last one became the main flaw of the "Royal Conspiracy Theory". William gill, a suspect in the royal conspiracy theory, is considered on file. The first message sent by the suspected murderer was "Dear Boss". On August 7, 1888, a female corpse was found in Whitechapel in the east of the corpse. The deceased was a middle-aged prostitute Martha Tabu who was stabbed 39 times, nine of which were cut across her throat. At 3: 45 am on August 31st of the same year, another prostitute, Mary Ann Nicholas, was found dead at the age of 43 in the cargo storage area near Whitechapel. Not only was her face bruised, some front teeth fell off, but her neck was cut twice. But the most cruel thing is that the abdomen was cut open, the intestines were dragged out, and the vulva was severely stabbed by a sharp knife. Because there are few murders near the church, these two cases and several previous murders have attracted the attention of the public, and some media even call them "continuous murders in Whitechapel" and think that the same murderer did it. This vivid description caused panic among local residents, so the police put more plainclothes detectives on patrol here, and local residents also organized patrols to maintain law and order. This makes people believe that such cases will not be repeated. Unexpectedly, eight days later, at 5: 45 a.m. on September 8, an old driver living at No.29 Hanbury Street)29 found a female body in the back fence of his cheap serviced apartment. The deceased was a 47-year-old prostitute Annie Chapman. Like the previous victim, her throat was cut and her abdomen was cut, and her intestines were thrown on her right shoulder, and part of the uterus and abdomen were cut off by the murderer. There were obvious strangulation marks on his neck, and he was said to have called for help before he died, but he didn't pay attention. Because it was the first time that the murderer committed a crime near the house, it was still close to 5 o'clock in the morning, but it didn't make any noticeable noise. This case became the most famous case committed by the murderer who was called the Ripper in the future. On September 27th, the Central News Agency received a letter written in red ink and stamped with a fingerprint, signed "Jack the Ripper". In the letter, he indicated jokingly that he was the murderer of prostitutes, and claimed that he would continue to kill more prostitutes before being arrested. Since this letter begins with "Dear Boss", it will be called the first letter sent by the murderer in the future. At one o'clock in the morning on September 3th, a coachman found the body of Elizabeth Stride near his home. Unlike the first two victims, the 44-year-old Swedish prostitute died of excessive blood loss in the left cervical artery, although her throat was cut, but she was not laparotomy. Because of the different modus operandi, some people suspect that the murderer in this case is not directly related to the first two murders of laparotomy. Just as a large number of police officers arrived at Elizabeth Stade's morgue, Catherine Eddowes, a 46-year-old prostitute, was found lying dead in Mitre Square at about 1: 45 in the morning. In addition to being cut throat and laparotomy, her intestines were thrown to her right chest, and she was also deprived of part of her uterus and kidneys. As the patrol police claimed that there was nothing unusual here at 1: 3, it was concluded that the deceased was killed between 1: 3 and 1: 45, and his abdomen was cut open. The murderer's neat modus operandi makes most people think that he may be a professional surgeon. At three o'clock in the morning, a police officer searching for a suspicious suspect found a piece of blood-stained clothing near Gaszton Street, which was identified as part of an apron worn by Kathleen Erdos. On the high wall near where the clothes fell, a line written by the suspected murderer in chalk was found: "Jews are not a nation willing to be resented!" " ("the juwes are not the men that will be blackened for nothing") but another policeman remembers it as "the juwes are the men that will not be blackened for nothing". Later, the police inspector general Thomas Arnold visited the scene and watched this message. He was afraid that the graffiti on the wall would be seen by passers-by after dawn, but it aroused anti-Semitic sentiment and ordered it to be erased on the spot. The next day, on October 1st, the Central News Agency received another postcard, the text of which was also written in red ink. In the letter, the writer claimed to be "saucy Jacky" and mentioned that he planned to "do two more things the next day"-generally believed to be the two murders of Elizabeth Stade and Kathleen Erdos in the early morning of September 3. In addition, the writer mentioned that he planned to cut off the dead person's ear and send it to the police, which was similar to the situation in which the external ear of Kathleen Erdos' body was damaged. Finally, the writer also left the generic name of "Jack the Ripper". In the future, the letter will be called "Saucy Jacky" by the writer. On October 15th, a letter sent to the Whitechapel Vigilance Committee, which was formed spontaneously by residents in the area around Whitechapel, once again attracted everyone's attention. The letter contained half a kidney and was written in black ink. The writer claimed "from hell" and said that this kidney was taken from "some woman" (generally believed to be Kathleen Erdos), and half of it was fried and eaten by him. Different from the previous two letters, this letter has no signature, and people will name it after the beginning of "From Hell". Compared with the first two letters, it is generally believed that this letter is most likely to be written by the murderer himself. On November 9th, a landlord on Dorset Street sent his assistant to Mary Jane Kelly's room to collect six weeks' unpaid rent, only to find the 25-year-old young prostitute dead in bed from the window: she was naked, with ligature marks on her neck, her chest and abdomen cut open, and her ears, nose and breasts were cut off. It is believed that the murderer took her to a nearby fireplace to cook and eat (but some people think she was eaten. A neighbor claimed that Kelly was still alive at 8: 3 pm last night (although her description of Kelly's appearance was not completely correct), and another neighbor claimed that she heard a miserable female scream around 4 am that day. But what is certain is that Kelly appeared in the bar at 1 o'clock the night before the body was found. After the murder of Mary Jane Kelly, Jack the Ripper seems to have disappeared: there is no similar murder method in London, and the media's interest in the murder has gradually faded. However, the police mobilized a large number of manpower, but it was too late to solve the case, which was criticized by people from all walks of life in Britain, including Queen Victoria, which led to a change in the top management of the police. In 1892, the police announced that they would stop investigating the serial murders in Whitechapel. Other theories about the Ripper Sir Arthur Conan Doyle and William Stewart put forward a further theory that a female murderer was dressed as Jack the Ripper. Supporters of this theory believe that the female murderer works as a midwife. She can wear bloody clothes without attracting attention and suspicion, and she is more likely to gain the trust of the victims than men. This theory holds that one of the suspects who fits the description is Mary Pearcey, who killed her lover's wife and children in October 189. Although there is no sign that she was a midwife. Characteristics of Jack the Ripper's Crimes Between August 7th and November 9th, 1888, five similar cases of prostitutes were murdered and their bodies were destroyed in succession near Whitechapel in East London, England. The area around Whitechapel has always been a mixture of dragons and snakes. Although there are frequent crimes, there are few similar sensational and brutal cases of killing people. After the second murder on August 31, the media called the two cases "Whitechapel serial murders" and reported the brutal methods of the murderers. The pictures and sounds of the local media have made the local residents feel uneasy, and the women of ordinary people have been afraid to walk at night. But soon there was a third similar murder. On September 27th, a news agency received a letter written in red ink and stamped with fingerprints. The writer indicated that he was the murderer of serial murders in a joking tone with a non-working class tone, and signed it "Jack the Ripper". On September 3th, a fourth similar murder happened. On October 1, the same news agency received another postcard that was thought to be from the same person. At that time, the police didn't pay much attention to this clue and thought it was just one of many pranks. However, after media reports, the name of "Jack the Ripper" spread like wildfire and spread all over Britain and even the world. But the extremely bloodthirsty and abnormal "Jack" is not satisfied. On November 9th, a 26-year-old prostitute, mary carey, was killed again in her own residence. Her body was cut open and her internal organs were taken out and scattered in the room. The scene was like a hell on earth. According to the analysis, there are many similar features in this series of cases: 1. All the victims are cheap prostitutes at the lowest level of society and have no fixed residence except mary carey. 2. Most of the victims were married and had children. Later, they left their families and wandered around East London, and all of them had cohabitants. 3. All the victims had moderate to severe alcoholism; Alcoholism is often the reason why these victims leave their families. 4. Except for the case of mary carey, all the victims of other murders were seen walking in the street one or two hours before their bodies were found, and they were all drunk. 5. Except for the case of mary carey, a neighbor heard a woman calling for help at 3: a.m., although all the other murders were not far from the thoroughfare and there were many homes nearby, they seemed to be silent when they happened. 6. The police found that none of the victims of the murder showed signs of strong struggle before their death. 7. Within 3 minutes to two hours before each murder, witnesses witnessed the deceased talking with a strong, dignified-looking man in his thirties who had to wear a hat.