In order to solve the case quickly, Ningdu County Public Security Bureau set up a special team. Under the guidance and coordination of the provincial and municipal public security organs, the police found that they had been tracking and processing for five days and nights, and a battle broke out in Ningdu County at 6 am 10 on August 6. Only Liu Mumin, 17 years old, graduated from junior high school.
Jingyuan Village, Zhantian Township, Ningdu County, is more than 20 kilometers away from Ningdu County. Surrounded by mountains and rivers, it is rich in white lotus and has a very beautiful environment. At about 9: 30 am on August 5, the busy farming season began. Many villagers went to the fields to pick lotus seeds and grow rice. At this time, the villager Aunt Liao was working in the field. She looked up and saw a girl 10 years old in the village. She gasped and said, "I killed someone." Aunt Liao immediately put down her farm work and followed the little girl to the crime scene.
"As soon as I went upstairs, I saw blood everywhere on the ground. Zeng Zeng and their two children were lying in a pool of blood. Too bloody. " August 18, recalling the scene that day, Aunt Liao was still very scared. Later, Aunt Liao asked her husband to call the police at 1 10.
Ningdu County Public Security Bureau actively guided public opinion, ordered the on-site police and criminal investigation brigade to come to the scene immediately, and the police coordinated 120 emergency doctors to rescue, and quickly launched the murder case detection work plan, attracting more than 30 people from all over the country and establishing the plan. The case investigation headquarters is located in the village primary school less than 50 meters away from the scene, and the investigation work is in full swing.
Jingyuan Village, Zhantian Township, Ningdu County is surrounded by mountains on three sides, and ordinary strangers rarely enter. In addition, through the investigation of the social relationship between Zeng and Zeng, the possibility of love killing is ruled out. In addition, through the comprehensive analysis of the clues left by the crime scene, we initially determined that the suspect was from Zhantian Village, Jingyuan Village, and must be male. According to the analysis of the police, in the case of determining the direction, the working group police investigated the source of 844 men in the village, and quickly mobilized police forces to carry out case investigations in the village, towns and surrounding towns, and took investigation measures such as visiting, shielding and searching.
At the same time, some technicians went to the scene to make a careful investigation, and made an investigation on the tools of the suspected criminal suspect and the traces of physical evidence left behind, such as the traces of the investigated specimens, the basic restoration process of the criminal suspect and the general route and direction of his escape, and initially determined the acquaintances to commit crimes.
"The crime scene is on the second floor of Zeng and Zeng's home. The living room is a mess, and there are signs of fighting. Besides, Wei Zhen was fair at the time of the crime. If an outsider committed the crime, he could not have chosen this time, nor could he have entered the second floor of the victim's house. The police said that in view of this, a special team was sent to conduct a large-scale investigation of suspicious people, places and articles in Yuancun and Zhantian Township to find the defects and traces of suspects. The so-called heaven rewards diligence. As long as the police's 60-hour efforts were not in vain, the sly fox finally showed his tail.
The working group visited the police and found that Liu Mumin, a villager who lives in Ningdu County, had appeared near the scene at the time of the incident. He is only 17 years old, which is in line with the investigation scope of the criminal suspect portrait working group. After receiving this news, the task force immediately investigated and verified. Through in-depth investigation by the police, it was confirmed that Liu Mumin was suspected of a major crime. At 6 o'clock in the morning of August 10, the police arrested Liu Mumin who was fishing by the pond not far from his residence. By comparison, the biological materials extracted from the site completely conform to Liu's biological characteristics. In the face of hard evidence, Liu confessed to the criminal process of robbery and murder. After five days of fighting day and night, the "8.5" extraordinarily serious murder case in Ningdu County was quickly solved.
According to the criminal suspect Liu Mumin, a few days before the incident, Liu Mumin sent his grandmother from Ningdu County to his home in Jingyuan Village, Zhantian Township. In the early morning of August 5, Liu Mumin returned to his grandmother's house after collecting fishing nets in the river, passed by the victim Zeng's residence and entered the grocery store on the first floor to buy a bottle of mineral water. At this time, Liu Mumin found that only Zeng Mouyan was at home in the grocery store, and the surrounding farmers were doing farm work in the field. He was up to no good.
Later, Liu Mumin went back to grandma's house to pack some clothes and drove back to the county seat on foot. When he passed a Yan grocery store again, he decided to rob it. Liu Mumin broke into the grocery store. Did not see the victim Zeng Moyan, went straight to the living room on the second floor and entered the bedroom through the balcony. When he saw the victim Zeng Mouyan, he said, "Take some money." Zeng Moyan didn't fight with Liu Moyan, threw Liu Moyan on the ground, ran directly to the living room, picked up a pair of scissors, went back to the bedroom to kill Zeng Moyan and hid the body under the bedroom bed.
Just as the suspect Liu Mumin rummaged for the stolen money, the victim's sister Zeng Mouhua came to the second floor to find her. Liu Mumin, who was hiding in the living room on the second floor, was caught off guard, grabbed its neck with both hands and killed it with scissors. At this time, the children of the two victims came to the second floor and saw the suspect Liu, afraid to go downstairs and leave. Two suspects were dragged back by Liu because of their injuries.
Subsequently, Liu Mumin simply cleaned up the scene, turned to find 20 yuan's money, and fled back to Ningdu County through the back door until he was caught.
On August 18, the reporter met the suspect Liu Mumin at Ningdu County Detention Center. After talking, the reporter learned that Liu Mumin just graduated from the third grade this year and his family situation is average. Since his parents went out to work, he has lived with his aunt since he was one year old. Growing up, his parents were away all the year round. Liu Mu-min is insecure and has low self-esteem. He often has disputes and even fights with his peers in the same village. "I have no friends since I was a child, so I feel very lonely. Friends in the village often bully me and beat me. I once asked my parents that I want to live and study outside with them, but my parents have to work and can't take me with them. " Liu said that he had a good relationship with his aunt and grandmother since he was a child.
Speaking of the motive for killing, Liu Mumin said that after finishing junior high school, he made some friends, and he felt that the feelings of friends were very rare. He thought everyone was in a hurry after graduation, and he wanted to ask friends out to play. In addition, he owed nearly a thousand yuan in foreign debts. They went to the victim Zeng Moyan's grocery store to withdraw money, and they didn't want this bad result.
During the interview, villagers in Jingyuan Village told reporters that Liu Mumin's parents are very honest, and Liu Mumin looks honest and kind, and there are not many words. The villagers never imagined that Liu Mumin would kill four villagers for pocket money.
In this regard, the police analyzed that due to the lack of family education, the suspect Liu Mumin felt inferior and lacked security. If Liu Mumin grows up, his parents can find his emotional changes in time and actively guide him, which may avoid the tragedy.
At present, the suspect Liu has been under criminal detention.