The four members of the special case team felt that the case was serious. After getting off the plane, the main leaders of Lanjing Municipal Party Committee and Municipal Government were waiting for the arrival of the special case team. The pick-up team was luxurious and powerful. A secretary came forward to introduce Lan Jing to the special case team.
The Secretary of the Municipal Party Committee, the Mayor, the Director of the Lanjing Public Security Bureau, the Director of the Lanjing Municipal Public Security Bureau, the Secretary of the Political and Legal Affairs Committee, the Directors of the Lanjing Municipal Branch Bureaus... These leaders shook hands with the special case team one by one, and the expressions on their faces and eyes were
They all reveal expectations and trust.
It was already eleven o'clock at night when the special case team arrived at the Lanjing City Public Security Bureau. The office building was brightly lit, and many police officers lined up in front of the building to welcome them. The leader was an old man in his sixties, who was from the Lanjing City Public Security Bureau.
The old director has retired. 12 years ago, he served as the commander-in-chief of the 119 Corpse Dismemberment Case Task Force.
The old director held Professor Liang's hand and said, "I'm so ashamed. The 119 mutilation case has not been solved, and now another corpse mutilation case has occurred."
Professor Liang said: Even big cases will always come to light one day. We will do our best. Now that criminal investigation technology is so advanced, there is great hope for solving the case.
The old director introduced the police who lined up to welcome them. These police officers had all participated in the investigation of the 119 corpse case 12 years ago. They are now 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 went to the special case.
The team expressed that they wanted to participate in the investigation work again. He said with mixed emotions: It has been 12 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. However, now, after so many years,
It's passed, but I still haven't caught the murderer. Alas, how can I be worthy of the police uniform I wear...
One of the police officers was filled with emotion and said: It has been 12 years. The 119 corpse case was the first case I took over. It was my first day as a police officer. 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 cannot ride a bicycle. She is a girl from a poor background. When she was a child, her father often took her on a bicycle. After the incident, her father said that when he was riding alone on a country road, he would always look back habitually.
Looking at the back seat, I realized that my daughter was gone.
After her daughter was murdered, Diao Aiqing's mother became taciturn. She worked in a diesel engine parts factory. Sometimes, when she was in a daze, she would think of a conversation she had with her daughter:
Diao Aiqing’s mother: “Aiqing, why is there 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 police officers who had participated in the investigation of the 119 dismembered corpse case would 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 fifth criminal investigation division of the Lanjing City Public Security Bureau. The old director, the fifth criminal investigation division,
The three criminal investigation forces of the chief and the director of Gulou District came together, and the three of them worked together with the special case team.
That night, a major case command center involving public security departments at the central, provincial, and municipal levels was quickly established. The special case team served as the core leader and commander-in-chief. Insufficient police personnel were transferred from the entire province, and insufficient staff were transferred from various agencies. In short, everything needed to be done.
To ensure the progress of the investigation work, everything must provide convenience and help for major cases. The command headquarters consists of an investigation team, a forensic team, an on-site inspection team, an evidence analysis team, a computer technology team, a trace identification team, a file management team, and a mass clues team.
Collection group.
The next morning, Bai Jingyu mobilized elite soldiers from across the country to form an expert group, which was urgently summoned to Lanjing City to join the major case headquarters. It included criminal portraits, DNA fragmentation identification, blood type analysis, dental science, and trace science.
, experts in various fields such as criminal abnormal psychology, each of whom is well-known in the police circles across the country.
The major case headquarters is a gathering of heroes, with a super strong lineup!
The special case team held a meeting of 100 people to formulate general working principles and detailed task allocation. The 119 corpse dismemberment case and the 911 corpse dismemberment case were jointly investigated. The unsolved cases that had been sealed for twelve years were reopened.
The special case team walked into the archives room, and Professor Liang remembered the reason why Bai Jingyu didn't take the case files - there were too many files on the 119 Dismemberment Case, and they filled several rooms.
Diao Aiqing's head had been boiled and had been frozen for more than ten years. A large number of photos show the scene when it was first discovered many years ago. The head had been boiled, so it showed a shocking red color. More than ten years ago, Lanjing police passed
The TV station extensively solicited clues and displayed two bags containing the corpse: one was a blue denim backpack and the other was an old-fashioned handbag. There was also a printed sheet containing the body fragments, hoping that citizens would provide clues.
Professor Liang sent several police officers to extract DNA and blood samples from Diao Aiqing's parents, and re-did DNA identification on more than 2,000 body parts and heads of the deceased Diao Aiqing. The bags and bed sheets used to package the body parts were tested for trace substances, trying to find out what was left behind by the murderer.
If the murderer's DNA can be extracted from the subtle physical evidence, the case will be solved soon.
A DNA identification expert said: Why did the murderer use red sheets? Alas, if they were white, we would find more clues.
DNA identification experts said that there was dark red dye on the sheets, which is a difficult inhibitor to deal with in DNA testing.
The modus operandi of the corpse dismemberment case 12 years later was very similar to that of the 119 corpse dismemberment case, and the location of the corpse dumping was also very consistent. The special case team had a heated discussion at the meeting. Everyone had different opinions. Half of them believed that the two corpse dismemberment cases were the same.
The other half of the people think that what the murderer did was imitated by another murderer.
The three corpse dumping sites of the 911 dismemberment case were all under strict protection by the police. Professor Liang asked Bao Zhan to lead the inspection team from the central site to fix the scattered objects, mark them and then take pictures and extract them. Bao Zhan first photographed the entire scene and
At the central site, a search was carried out with a radius of two kilometers, but no suspicious evidence was found in the periphery. The police transported the trash cans where the body parts were discarded back to the headquarters and extracted all the objects inside. It took dozens of people three days and three nights.
A detailed investigation was conducted at that time. Except for the packaging bag containing the body parts, the police did not obtain any other swimming information.
The investigation team collected extensive witnesses and initially believed that the murderer might have dumped the body on an electric bicycle. This is also strikingly similar to the 119 corpse case 12 years ago - 12 years ago, the police believed that the murderer might have dumped the body on an electric bicycle.
corpse!
The major case headquarters established a laboratory.
For on-site inspection, physical evidence analysis, and trace identification, the three teams jointly established a laboratory equipped with the latest scientific and technological instruments, including scanning electron microscope, Fourier transform infrared spectrometer, microspectrophotometer, gas chromatograph/mass spectrometer, gas chromatograph
Chromatograph, liquid chromatograph, multi-band light source detection system, UV-visible spectrophotometer, thin layer scanner, forensic image analyzer, DNA amplification instrument, DNA sequencer, language recognition workstation, document inspection instrument, etc., and others
Laboratory equipment.
Professor Liang asked the identification experts to conduct the most meticulous inspection on the bags and plastic bags in which the body parts were packaged, trying to extract residual blood, semen, saliva, sputum, hair, nails, stains, oil stains, skin flakes or other human tissues.
The head of the deceased was also boiled and his face was unrecognizable. DNA identified the deceased as male, about 40 years old.
There is a big difference between the two corpse dismemberment cases. The victim in the 119 corpse dismemberment case 12 years ago was a 20-year-old woman; the 911 corpse dismemberment case 12 years later was a 40-year-old male.
The case became more complicated. The special case team analyzed and discussed. Bao Zhan made a bold hypothesis at the meeting. This 40-year-old middle-aged man might be the murderer of the 119 corpse case and was killed in the same way.
There is another possibility that this person is an insider or witness who was killed by the murderer of the 119 Corpse Dismemberment Case!
These two hypothetical questions make my hair stand on end!
The murderer killed the insider years later?
Did the insider kill the murderer years later?
Which one may be closer to the truth?
Su Mei used computer technology to find several netizens who posted on the Internet. Black Mass was interviewed by the police at the Gulou District Branch. He claimed that he had a legal background, had worked in courts and law firms, and now worked in a bank.
The online name is Black Mass. I named it because I like a heavy metal music album.
Professor Liang: In 1996, you were only 14 years old and still in junior high school. From this point of view, you can be ruled out as a suspect in the crime.
Director of the Gulou District: Why are you so concerned about the case more than ten years ago, and why do you think of posting on the Internet to speculate on the murderer?
Black Mass said: I became interested in this case in 2006 when I saw several posts about the case on the Internet. My original intention in posting was to attract private experts to come in and discuss the case together, but I didn’t expect that some people would doubt me.
It's the murderer.
Professor Liang: I have read the reasoning and analysis in your post, and it makes sense. We will investigate in depth. You think the suspect is a male, and he was between 30 and 40 years old at the time of the crime. He may also be in his 30s.
Under 10 years old, good appearance, mature and stable temperament, introverted, modest, single, highly educated, highly educated, likes to listen to music, may also be interested in literature, lives near Lanzhou University, lives alone, knows some medical knowledge
Knowledge, but no one knows it - but you missed an extremely crucial point.
Professor Liang: This is not a confidential issue. I hope you will shut up after understanding it.
Black Mass: Okay, I'll shut up.
Professor Liang: In the 119 corpse dismemberment case, all the internal organs and human bones of the deceased were not found. Where did these go?
Black Mass: It may have been thrown away by the murderer, or buried.
Professor Liang: There is another possibility. Think about the scariest place.
Black Mass: Could it be that...oh my god, he was eaten by the murderer, and the murderer was a man-eating demon?