◎Chapter 42: Ten Years of Terror

After getting off the plane, the main leaders of the Lanjing Municipal Party Committee and Municipal Government were waiting for the arrival of the special case team, and the reception lineup was luxurious and powerful, and a secretary stepped forward to introduce the special case team, the secretary of the Lanjing Municipal Party Committee, the mayor, the director of the Lanjing Public Security Bureau, the director of the Lanjing City Public Security Bureau, the secretary of the Political and Legal Committee, and the directors of the Lanjing City branches...... These leaders shook hands with the special case team one by one, and everyone's face and eyes showed expectation and trust.

When the special case team arrived at the Lanjing City Public Security Bureau, it was already 11 o'clock at night, the office building was brightly lit, and there were many policemen lined up in front of the building to welcome him, headed by an old man in his 60s, who was the old director of the Lanjing City Public Security Bureau, who had retired, and 12 years ago, he served as the commander-in-chief of the "1.19" corpse shredding case task force.

The old director shook Professor Liang's hand and said, "I'm ashamed, the '1.19' corpse shredding case has not been solved, and now there is another corpse mutilation case." ”

Professor Leung said: "There will always be a day when the big case will come to light, and we will do our best, and now that the criminal investigation technology is so advanced, there is great hope for solving the case." ”

The old director introduced the police officers who lined up to welcome them, and these policemen all participated in the investigation of the "January 19" corpse shredding case 12 years ago, and now they are middle-aged and elderly, and many of them have gray hair on their heads. The old director took the initiative to ask for help, and told the special case team that they wanted to participate in the investigation work again, and he said with mixed feelings: "Twelve years, I swore to the father of the child, and I promised the people of the city that the murderer must be brought to justice, but now, after so many years, I still haven't caught the murderer, alas, how can I be worthy of the police uniform I wear......

One of the policemen was full of emotion and said: "It's been 12 years, the '1.19' corpse shredding case is the first case I took over, that was my first day as a policeman, I also met Diao Aiqing's father, an honest farmer, for more than ten years, I often think of two small things, and I can't sleep well in my dreams." ”

The policeman talked about two small incidents when he visited Diao Aiqing's parents.

Diao Aiqing can't ride a bicycle, she is a girl from a poor background, when she was a child, her father often rode a bicycle to carry her, after the incident, her father said that when he rode alone on a country road, he would always habitually look back at the back seat, only to find that he had already lost his daughter.

After the death of her daughter, Diao Aiqing's mother also became silent, she worked in a diesel engine parts factory, sometimes, when she was in a daze, she would remember a conversation with her daughter:

Diao Aiqing's mother: "Aiqing, why do you have a mole behind your ear?" ”

Diao Aiqing: "If you disappear in the future, you can find me." ”

Professor Liang decided on the spot that all the cadres and police officers who had participated in the investigation of the "1.19" corpse shredding case should form a backlog team, which would be directly commanded by the special case team. The headquarters was set up in the office building of the No. 5 Criminal Investigation Division of the Lanjing City Public Security Bureau, and the three criminal investigation forces of the old director, the director of the No. 5 Criminal Investigation Division, and the director of the Gulou District Bureau gathered together, and the three of them worked together with the special case team.

That night, a major case command center with the participation of the central, provincial, and municipal public security departments at all levels was quickly set up, with the special case group serving as the core leader and commander-in-chief, and the police force was insufficient to be transferred from all over the province, and the staff was insufficient to be transferred from various organs. The headquarters consists of an investigation and visit team, a forensic team, an on-site investigation team, a physical evidence analysis team, and a

Computer Technology Group, Trace Identification Group, Archives Management Group, and Mass Clue Collection Group.

On the morning of the next day, Bai Jingyu again selected elite soldiers from the police circles across the country to form an expert group, and urgently summoned them to Lanjing City to join the major case command center, among which there were experts in various fields such as criminal portraits, DNA rupture identification, blood group analysis, dentistry, trace science, and criminal perverted psychology, each of which shocked the police circles across the country.

The major case command can be described as a group of heroes, and the lineup is super powerful!

The special case group held a meeting of 100 people, formulated general work principles and meticulous task assignments, and investigated the "19 January" and "11 September" cases of a heinous nature. The unsolved case that had been sealed for 12 years opened again, and the special case team walked into the archives, and Professor Liang remembered the reason why Bai Jingyu did not take the case file - there were too many files in the "1.19" corpse shredding case, and they filled several rooms.

Diao Aiqing's head has been boiled and has been frozen for more than ten years. A large number of photographs show the scene when it was first discovered many years ago, and the human head was boiled, so it took on a terrifying red color. More than ten years ago, the Lanjing police had extensively solicited clues through TV stations and exhibited two bags containing corpses: one was a denim blue backpack and the other was an old-fashioned handbag. There is also a printed bed sheet containing the fragments of the corpse, hoping that the public will provide clues.

Professor Liang sent several police officers to extract DNA and blood samples from Diao Aiqing's parents, re-DNA identification of more than 2,000 body parts and human heads of the deceased Diao Aiqing, and trace matter testing of the bags and bed sheets that packed the body parts, in an effort to find the subtle physical evidence left by the murderer, and if the murderer's DNA can be extracted, the case will be solved just around the corner.

A DNA expert said: Why did the murderer use red sheets, alas, if it is white, we will find more clues.

According to DNA experts, there is a deep red dye on the sheets, which is a difficult inhibitor in DNA testing.

Twelve years later, the modus operandi of the corpse shredding case was extremely similar to the "1.19" corpse shredding case, and the location of the corpse was also very consistent, and the special case team launched a heated discussion at the meeting, and everyone had different opinions, half of them believed that the two corpse mutilation cases were committed by the same murderer, and the other half felt that the other murderer imitated the crime.

The three sites of the 9/11 shredding were closely guarded by the police. Professor Liang asked Bao to lead the inspectors to start from the site of the center, fix the scattered objects, mark them and take photos to extract them. Bao Chu first took pictures of the whole scene and the central scene, and launched a search with a radius of two kilometers, but no suspicious physical evidence was found on the periphery. The police transported the garbage cans that discarded the body parts back to the headquarters and extracted all the objects inside, and dozens of people spent three days and three nights conducting a detailed investigation, except for the packaging bag containing the body parts, the police did not obtain any other useful information.

The investigation team extensively collected witnesses and initially believed that the murderer may have thrown the body on an electric bicycle, which is also strikingly similar to the "1.19" corpse shredding case 12 years ago - 12 years ago, the police believed that the murderer was riding a bicycle to throw the body!

The Big Case Command set up a laboratory.

On-site investigation, physical evidence analysis, trace identification, the three teams jointly set up a laboratory, equipped with the latest scientific and technological instruments, including scanning electron microscope, Fourier transform infrared spectrometer, microspectrophotometer, gas chromatography/mass spectrometry, gas chromatograph, liquid chromatograph, and more

Waveband light source detection system, UV-Vis spectrophotometer, thin-slice scanner, forensic image analyzer, DNA amplification instrument, DNA sequencer, language recognition workstation, document inspector, etc., and other laboratory equipment.

Professor Leung asked the forensic experts to conduct the most meticulous examinations on the bags and plastic bags that packed the body parts, trying to extract residual blood, semen, saliva, sputum, hair, nails, stains, oil stains, dander or other human tissues.

The deceased's head had also been boiled and his face was illegible, and DNA identification of the deceased was male, aged about 40.

There is a big difference between the two corpse mutilation cases, the deceased in the "1.19" corpse shredding case twelve years ago was a woman, 20 years old; Twelve years later, the victim in the 9/11 mass destruction was a male, 40 years old.

The case became complicated, the special case team analyzed and discussed, and Bao Bean made a bold assumption at the meeting that this forty-year-old middle-aged man might be the murderer of the "1.19" corpse shredding case, and was killed in the same way; There is also a possibility that this person is an insider or eyewitness, who was killed by the murderer of the "1.19" corpse shredding case!

These two hypothetical questions are creepy!

Murderer kills informant years later?

Insiders kill murderers years later?

Which one is closer to the truth?

Su Mei used computer technology to find several netizens who posted on the Internet. Black Mass, who was questioned by the police at the Gulou District Bureau, said he was a law student, had worked in courts and law firms, and now worked for a bank. The online name is Black Mass, which is named because he likes a heavy metal music album.

Professor Liang: "In 1996, you were only 14 years old and still in junior high school, so you can be ruled out from this suspicion of committing a crime. ”

Director of the Gulou District Bureau: "Why are you so concerned about the case more than ten years ago, and why did you think of posting on the Internet to speculate on the murderer?" ”

"I followed this case in 2006 and saw several posts about it on the Internet," Black Mass said. The original intention of my post was to attract folk experts to come in and discuss the case together, but I didn't expect anyone to suspect me of being a murderer. ”

Professor Liang: "I have read all the reasoning and analysis in your post, and there is some truth in it, and we will investigate in depth." You think that the suspect is a male, between the ages of 30 and 40 at the time of the crime, or may be under 30 years old, with a good appearance, mature temperament, introverted, modest, single, highly educated, highly educated, likes to listen to music, may also love literature, lives near the Landa, lives alone, knows some medical knowledge, but no one knows about it - but you have overlooked the crucial point. ”

Black Mass: "What? ”

Professor Liang: "This is not a confidential issue, I hope you will shut up after you understand it." ”

Black Mass: "Okay, I'll shut up." ”

Professor Liang: "In the '1.19' corpse mutilation case, no internal organs and human bones of the deceased were found. ”

Black Mass: "It may have been thrown by the murderer, or it was buried." ”

Professor Liang: "There is another possibility, you think about the most terrifying place. ”

Black Mass: "Is it ...... Oh my God, eaten by the murderer, who is a cannibal demon? ”