Jack the Ripper's modus operandi

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The Ripper's crimes were concentrated near Whitechapel in East London. This was a famous immigration center at the time, with tens of thousands of immigrants from as far away as Russia and Eastern Europe settling here. Due to the meager income, this area has long become a hotbed of poverty and crime, with homeless gangsters and prostitutes living on the streets. Although Scotland Yard established a city-wide patrol network in 1829, the weak police force was still unable to maintain security in the East End, where tens of thousands of prostitutes visited every night.

In the 1990s, 100 years after the Whitechapel serial murders, people had a more comprehensive understanding of Jack's modus operandi. Many characteristics of Jack can be inferred from this: A. He must have considerable knowledge of anatomy. ? B. Considering the environment at the time (outdoors, basically no lighting, having to be alert to the surrounding situation at all times, extremely tight time), Jack must be a skilled knife user. ? C. All the victims were injured by the knife from right to left, indicating that Jack is likely to be left-handed, or is skilled in using knives with both hands. (This speculation indirectly indicates that Jack is likely to be an experienced doctor or anatomist). ? D. Jack may not have committed the crime alone. (This inference is widely accepted by "royal conspiracy theorists", but there is no evidence that Jack had an accomplice). ? E. Jack must be a person with certain physical strength. ?The last item becomes the main flaw of the "Royal Conspiracy Theory". Royal conspiracy theory suspect William Gill is thought to be on trial.

The first message "Dear? Boss" sent by the suspected murderer. On August 7, 1888, a female corpse was found lying in Whitechapel in the East End. The deceased was the middle-aged prostitute Martha Tabryn. He was stabbed thirty-nine times, nine of which were across his throat. At 3:45 a.m. on August 31 of the same year, another prostitute, Mary Ann Nicholas, was found dead in the stocking area near Whitechapel. She was 43 years old. Not only was her face bruised and some of her front teeth missing, but her neck was also cut twice. But the most cruel thing is that the abdomen was cut open, the intestines were dragged out, and the vagina was severely stabbed with a sharp knife. Since homicides rarely occur near the church, these two cases and several previous murders have attracted public attention. Some media even called it the "Whitechapel Serial Murders" and believed that they were committed by the same murderer. Such vivid descriptions caused panic among local residents, so the police deployed more plainclothes detectives to patrol the area, and local residents also organized patrol teams to maintain law and order. This gives people confidence that such cases will not be repeated.

Unexpectedly, eight days later, at 5:45 a.m. on September 8, an old coachman living at No. 29 Hanbury Street broke into his low-cost rental apartment. A female body was found in the rear fence. The deceased was 47-year-old prostitute Annie Chapman. Like the previous deceased, her throat was slit and her abdomen was disemboweled. Her intestines were thrown onto her right shoulder, and part of the uterus and abdominal flesh were cut away by the murderer. There were obvious strangulation marks on his neck. It is said that he called for help before his death, but no attention was paid to him. Since this was the first time the murderer committed a crime near a house, and the time was close to before 5 o'clock in the morning, but he did not make any noticeable noise, this case became the most famous case committed by the murderer who would later be known as the Ripper. On September 27, the Central News Agency received a letter written in red ink and stamped with fingerprints, signed "Jack the Ripper" (Jack the Ripper). In the letter, he jokingly stated that he was the murderer of the prostitutes and claimed that he would continue to kill more prostitutes before being arrested. Since this letter started with "Dear Boss", this was how the first letter sent by the murderer was called in the future. At one o'clock in the morning on September 30, a coachman discovered the body of Elizabeth Stride near her home. Unlike the first two victims, the 44-year-old Swedish prostitute had her throat cut but was not caesareaned. Instead, she died of excessive blood loss from the left carotid artery. Due to different criminal methods, some people suspect that the murderer in this case is not directly related to the previous two murder cases of dissection. Just as a large number of police arrived at the burial place of Elizabeth Stead, at about 1:45 a.m., the body of 46-year-old prostitute Catherine Eddowes was found lying in the Miter Square. ?Square) on. In addition to having her throat cut and her intestines thrown out to her right breast, part of her uterus and kidneys were also taken away. Since the patrolling police claimed that there was nothing unusual here at 1:30, they determined that the deceased was killed between 1:30 and 1:45, and his abdomen was cut open. The murderer's execution was so neat that most people thought he might be a professional surgeon. At three o'clock in the morning, a police officer searching for a suspected suspect found a piece of blood-stained clothing near Goulston Street, which was identified as part of the apron worn by Kathleen Eddowes.

On the high wall near where the clothes fell, a line of chalk written by the suspected murderer was found: "The Jews are not a nation willing to be resented!" ("The? Juwes? are? not? The? men? That? Will? be?Blamed?for?nothing") but another detective remembers it as "The?Juwes?are?The?men?That?Will?not?be?Blamed?for?nothing". Later, Police Inspector General Thomas Arnold visited the scene and saw the message. He was worried that the graffiti on the wall would be seen by passers-by after dawn and would arouse anti-Semitic sentiments, so he ordered it to be wiped off on the spot. go.

The next day, October 1, the Central News Agency received another postcard, with the content also written in red ink. In the letter, the writer calls himself "saucy Jacky" and mentions that he plans to "do two more things the next day" - generally believed to be Elizabeth Stead and Caesar in the early morning of September 30 The two murders of Lyn Eddowes. In addition, the letter writer mentioned that he planned to cut off the deceased's ears and send them to the police, which is similar to the damage to the outer ear of Kathleen Eddowes' body. Finally, the writer also left the genus name "Jack the Ripper". In the future, the letter was called "Saucy Jacky", as the writer called himself. On October 15, a letter sent to the Whitechapel Vigilance Committee (Whitechapel? Vigilance? Committee), which was voluntarily formed by residents in the Whitechapel area, once again attracted everyone's attention. The letter contained half a kidney and was written in black ink. The writer claimed to be "from hell" and said the kidney was taken from "some woman" (generally believed to be Katharine Eddowes), half of which he had fried and eaten. Unlike the previous two letters, this letter did not have any signature. In the future, people named this letter with the beginning of "From Hell" ("From Hell"). Compared with the previous two letters, it is generally believed that this letter is most likely to be written by the murderer himself. On November 9, a landlord on Dorset Street asked his assistant to go to Mary Jane Kelly's room to collect six weeks' unpaid rent, but found out from the window The 25-year-old young prostitute died tragically on the bed: she was naked, with strangulation marks on her neck, her chest and abdomen were cut open, her face, ears, nose and breasts were also cut off. It is believed that the murderer took her to the nearby fireplace and cooked her Eaten (but some people think it was cut off and taken away by the murderer). A neighbor claimed to have seen Kelly alive last night, November 8, at 8:30 pm (however, her description of Kelly’s appearance was not entirely correct). Another neighbor claimed to have heard something at around 4 a.m. that day. A miserable female scream. But what is certain is that Kelly appeared in the bar at 10pm the night before the body was found. After the murder of Mary Jane Kelly, Jack the Ripper seemed to disappear: similar murder methods did not appear again in London, and the media's interest in the murder gradually faded. However, the police mobilized a large number of manpower but were unable to solve the case. They were criticized by people from all walks of life in the UK, including Queen Victoria, which led to changes in the top police circles. In 1892, the police announced that they would stop investigating the Whitechapel serial murders.

Other theories about the Ripper Sir Arthur Conan Doyle and William Stewart proposed a further theory that a female murderer dressed as Jack the Ripper. Supporters of the theory believe the female killer worked as a midwife, could wear bloody clothes without attracting attention and suspicion, and could gain the trust of her victims more easily than men. This theory identified a suspect who fit the description as Mary Pearcey, who murdered her lover's wife and child in October 1890. Although there is no indication that she ever worked as a midwife.

Characteristics of Jack the Ripper's crimes: Between August 7 and November 9, 1888, five similar cases of murder and mutilation of prostitutes occurred near Whitechapel in East London, England. The Whitechapel area has always been a mixed bag, and although crimes are frequent, there are few fatal cases that are as shocking and brutal as this. ? After the second murder occurred on August 31, the media dubbed the two cases the "Whitechapel Serial Murders" and reported extensively on the murderer's brutal method of committing the crime. The local media's vivid reports have made local residents panic and uneasy, and ordinary women no longer dare to walk at night. But soon a third similar murder occurred. On September 27, a news agency received a letter written in red ink and stamped with fingerprints. The writer used a joking tone with a non-working class tone to indicate that he was the murderer of serial murders, and signed "The Ripper" Jack". On September 30, the fourth similar murder occurred. On October 1, the same news agency received another postcard believed to be from the same person. The police did not pay much attention to this clue at the time, thinking it was just one of many pranks taking advantage of the opportunity. However, after media reports, the name "Jack the Ripper" spread like wildfire, spreading throughout the UK and even the world. But the extremely bloodthirsty and perverted "Jack" was not satisfied.

On November 9, a 26-year-old prostitute, Mary Kelly, was killed again in her residence. Her body was disemboweled and her internal organs were taken out and scattered around the room. The scene was like a hell on earth. According to analysis, this series of cases has many similar characteristics: 1. All the victims were cheap prostitutes at the bottom of society, and except for Mary Kelly, none of them had a fixed residence. 2. Most of the victims were married and had children. They later left their families and lived in the East End of London, and they all had cohabitants. 3. All victims had moderate to severe alcohol problems; alcoholism was often the reason these victims left their families. 4. With the exception of the Mary Kelly case, all the victims in the other murder cases were seen walking on the streets an hour or two before their bodies were found, and all of them were drunk. 5. Except for the Mary Kelly case, where a neighbor heard a woman calling for help at about three o'clock in the morning, the other murders seemed to occur quietly even though the crime locations were not far from thoroughfares and there were many homes nearby. sound. 6. The police determined that the deceased showed no signs of strong struggle before his death.

7. Thirty minutes to two hours before each murder, witnesses witnessed the deceased talking to a man in his thirties, strong, dignified, with a beard and a hat.