The special case team and Xiaocheng police conducted an inspection and analysis around the deceased's bicycle.
The bicycle should have been abandoned by the murderer. After the murder, he threw the deceased's bicycle and his high heels into the garbage pool. Zhao Xin confessed that he did not ride the bicycle after picking it up because the tires were flat and there was some garbage on the wheels. He pushed
After the car came home, I connected it with a rubber hose to the faucet and rinsed it. I didn't go to repair the car and kept it in the rental house.
The police were unable to pick up the suspect's fingerprints on the handlebars, and the dirt on the pedals did not provide any clues.
The garbage pool was more than half a meter high. The murderer had to lift or lift the bicycle to throw it into the garbage pool. After a comprehensive inspection, the police accidentally found trace oil stains on the crossbar and tripod of the bicycle. The identification results showed that it was diesel.
Su Mei said: "The diesel on the bicycle was probably left behind by the murderer."
Hualong asked: "The tire is flat. Could the diesel have been contaminated by the deceased when he was repairing the car?"
Bao Zhan said: "If a tire is punctured, you usually have to go to a car repair shop. It was already night after Lao Ma had finished his wedding wine, and all the car repair shops were closed."
Professor Liang said: "I would venture to reason out that after finishing the wedding wine, Lao Ma was about to ride home and found that his tire was punctured. He happened to meet an acquaintance. This person should have a car, maybe a tractor or an agricultural motorized tricycle.
, in short, it was a diesel car, and the old horse hitched a ride and never came back."
The old director said: "We must adjust the direction of the investigation. This case is most likely committed by an acquaintance."
After investigation, it was found that most of the people attending the wedding banquet that night were relatives and friends from rural areas, and many of them came on tractors or agricultural motorized tricycles. The police made a detailed list for investigation, and finally, a suspect surfaced.
This man is Lao Ma’s son-in-law, his name is Li Qing. He owns an agricultural motorized tricycle and makes a living by selling vegetables. He usually doesn’t drink. At the wedding banquet, he sat at the same table as his father-in-law, Lao Ma, and both of them drank that night.
A lot of wine. Someone confirmed that after the banquet, Lao Ma's bicycle tire was punctured. Li Qing wanted to send his father-in-law home, but his father-in-law did not agree, and the two argued for a long time.
Lao Ma said: "Don't worry about me, I can leave by myself."
Li Qing said: "Dad, your bike is broken and you can't ride it anymore. Get on my tricycle!"
Li Qing was the last person to see the dead horse.
However, Li Qing denied this. He claimed to the police that after the wedding banquet, Lao Ma insisted on going home by himself and did not let Li Qing see him off. The police learned from peripheral investigations that Lao Ma's two sons were not filial.
As soon as Ma died unexpectedly, the two sons came up with the idea of selling the ancestral home and then split the money. Their daughter Ruiwen came to the public security bureau many times and demanded severe punishment for the murderer. She burst into tears every time and urged the police to solve the case as soon as possible.
On the pretext of informing them of the progress of the case, the special case team summoned Li Qing and Ruiwen to the Public Security Bureau for separate interrogation.
Su Mei said: "On the wedding day, did your husband have any unusual reaction after he came home?"
Ruiwen said: "He drank some wine and went to sleep after returning home. I got up in the middle of the night to let him drink water. I saw him sitting on the bedside. I was shocked. I asked him what he was doing. He said he had a headache.
Then I fell asleep.”
Su Mei asked cautiously: "Your husband, Li Qing, does he have the habit of wearing women's clothes?"
Rui Wen said: "Why does a man like him wear women's clothes? What do you mean by asking?"
Bao Zhan said: "Li Qing, how is your relationship with your father-in-law? I heard that you used to run transportation and sell vegetables together."
Li Qing said: "I go to other places to pull a cart of celery and potatoes to sell. Sometimes I ask my father-in-law to follow the cart and ask him to help."
Bao Zhan took out a pair of high heels, stared at Li Qing and asked, "Can you cooperate with us in an experiment and try wearing these shoes."
Li Qing was a little panicked, sweating on his head, and his eyes avoided looking at the shoes. He said, "These are women's shoes. Why should I wear these?"
Li Qing's feet just fit into these high heels. According to the police's requirements, he walked back and forth on the dirt paved road. Professor Liang noticed that when Li Qing walked, he deliberately adjusted his posture, and his stride length was larger than usual.
After a fall. After obtaining the shoe print, the next step is a series of data comparison and analysis.
Trace identification experts use Zernike moments to express and identify the shape of shoe prints. They divide the shoe prints into several independent lines, expand the angles with reference to common coordinates, record the data, and then conduct feature comparisons on shapes and scales, and conduct detailed edge analysis.
Accurate calculation. Through geometric theory, one by one comparing the area, circumference, major axis, minor axis, main axis direction, convex and concave area, tightness and solidity of the shoe prints, we finally came to a preliminary conclusion - Li Qing's shoe prints and
The shoe prints at the crime scene were relatively consistent, with a similarity of 80%.
Su Mei said: "Cinderella found her glass slipper, we found Cinderella."
Professor Liang said: "The next step is to do a DNA test to confirm whether Cinderella is him."
Bao Zhan said: "How could this happen? The son-in-law raped and killed his father-in-law. It is simply unbelievable."
Hualong said: "Have our special case team encountered too many perverted murderers?"
DNA testing takes time, so the police decided to conduct secret surveillance on the suspect Li Qing.
The civil affairs department cooperated vigorously to help find the best surveillance point. There is a feed processing factory opposite Li Qing's house, and there is a ventilation attic on the factory building. The surveillance point is set up in the attic. From here, from a high position, Li Qing's yard can be seen at a glance
, two police officers set up high-powered telescopes that can take pictures and conduct 24-hour surveillance on Li Qing's home. Their main task is to track the suspect's whereabouts and prevent him from escaping.
On the third day of surveillance, the police reported an extremely strange clue.
It was afternoon, and Ruiwen closed the courtyard door and locked it, which aroused the vigilance of the surveillance personnel. Ruiwen said something to Li Qing after entering the house, and Li Qing looked very reluctant. Next, ordered
A surprising scene happened. Ruiwen took off her pants and lay on her back on the bed. The surveillance police thought she was
The couple were about to have sex, but who knew that Ruiwen pulled something out of her body. Li Qing was indifferent. After a while, he took the thing and put it in his palm, frowned, raised his neck and swallowed it.
The surveillance personnel took photos of the entire process. After enlarging the photos, they discovered that the thing was a round red date.
Su Mei looked at the photo and said, "I'm going to vomit. How dare I eat dates from now on?"
Bao Zhan said: "Why do you want to eat this? It's so strange."
Hualong also looked at the photo and said: "This should be a dried date. It has been soaked for a long time and has become round and big."
Professor Liang was well-informed and said, “This is jujube cultivation!”
In the past, people believed that yin essence strengthened yang, so they came up with "Yang Zao", also called "Yin Zao" and "Female Gan". There is a poem in Zhu Jun's "Jihe Poems" of the Qing Dynasty that records the cultivation of jujube: "Hong Zao"
Gradually, we encourage academic exchanges, and there is no literature on silkworm science. Raising jujubes is easy and tastes delicious, and planting bamboos will make you listen to the wind."
"Shi Yi Ji" written by Wang Jia of the Eastern Jin Dynasty also has records about raising jujube.
There is a similar description in the modern notebook novel "Ye Yu Qiu Deng Lu". The story tells that a man named Jin Ding accidentally entered the lair of a gangster. This gangster also had the same hobby, and he specially plundered two
The women stayed in the inner room just to eat "pickled dates". The two women complained to Jinding: "The master... is addicted to strange things and likes to eat sweet swine."
Folks in Shaanxi also have the theory of raising jujubes, and there are also such records in the books of Shaanxi writers Chen Zhongshi and Jia Pingwa.
The case has twists and turns, and the criminal suspect Li Qing came into the police's sight. It was exciting. I thought it was not far away from solving the case. However, the incident of "raising dates" captured on surveillance seemed to indicate that Li Qing was a patient with sexual dysfunction. The couple got married.
After many years of childlessness, the special case team conducted an investigation and found that Li Qing indeed suffered from impotence and was unable to have a normal erection. He had gone to Xiaocheng People's Hospital for treatment, and the medical records archived by the hospital also confirmed this.
After many years of marriage and no children, my wife Ruiwen wanted to have a baby. She made tiger-head shoes in advance, bought small clothes, and even prepared 20 diapers. However, her husband Li Qing's illness came late.
Unfortunately, I went to the hospital for neurological examination, psychological examination, liver and kidney function tests, and prescribed a lot of medicine. My husband still couldn't get an erection and couldn't have a normal sexual life.
Ruiwen went to the doctor for treatment in a hurry. Her relatives, friends and neighbors all confirmed to the police that Ruiwen went to the slaughterhouse to buy a sheep whip, a donkey meat restaurant to buy a donkey whip, and a dog meat dealer in the west end of the town to buy a dog.
She stewed these three whips into soup and forced her husband Li Qing to drink it, but it still had no effect.
When Ruiwen was shopping, she would stand in front of a telegraph pole in a daze. There were advertisements for infertility treatment by old military doctors. The idea of raising jujubes was probably a folk trick she heard from a certain charlatan.
Li Qing suffered from impotence, so how could he rape and kill his father-in-law, Lao Ma?
When the DNA test results came out, everyone was shocked. The semen in the dead horse's body was exactly that left by Li Qing!
