An uncle who was scavenging was picking up garbage as before, and suddenly he saw a brand-new coat in the garbage heap in front of him, but before the uncle was happy, the next second he suddenly threw down his coat and fled here, it turned out that he found a girl's body under his clothes.

The police received the report and immediately rushed to the scene, and the forensic doctor found many superficial scratches on the outside of the deceased's arm and calf. He speculated that this was caused when the body was being dragged, and that some flocculent material had been found in one of the wounds.

It didn't appear to be from the surrounding plants, so the medical examiner guessed that it was just the scene where the murderer's body was dumped.

After bringing the body back to the police station for an in-depth autopsy, the forensic doctor preliminarily judged that the time of death of the deceased was about 7 p.m. the day before yesterday based on the corpse spots. Assistant Xiao Ran found multiple contusions on the girl's thigh, and basically determined that the murderer had committed the deceased before committing the murder.

The medical examiner found that the girl's eyes were bleeding and her lips were dry, combined with the ring marks on her neck and the scratches on the deceased's legs, he guessed that the girl was first strangled by a rope and then dragged for a long distance before committing the crime.

However, the strange thing is that the strangulation marks on the back of the deceased's neck are much wider than the front, so he speculates that the murderer must have tied a knot in the rope in advance to prepare for the crime, and he also vaguely smelled a fishy smell on the strangulation marks.

On the other side, the police have investigated the information of the deceased, the girl is named Ma Shasha, 17 years old, a senior in high school.

Since childhood, his parents divorced and was brought up by his grandparents, and Xiao He asked the uncle who found the scene. The uncle said that there was a yellow coat covering the girl's face at that time, which showed that the murderer had a sense of shame for the deceased after committing the crime, so it could not be ruled out that an acquaintance committed the crime.

What's even more strange is that he investigated the store price of this dress, and unexpectedly found that it was as high as about tens of thousands of yuan, and the clothes on the girl's body looked like they were all tens of dollars, so he thought that the source of this coat was worth investigating.

After hearing this, Lao Ji asked everyone to immediately investigate the social relationship of the deceased, and at the same time check the shipment records of the store, and strive to find some useful clues.

Cuong and others arrived at the deceased's home, and Ma Shasha's grandparents were very sad to learn that their granddaughter had been killed. Grandma sadly told them that Sasha's parents had divorced at an early age, and that her father had died in a car accident when she was 10 years old.

Although custody was awarded to her mother, the woman never came to visit the child. The day before yesterday, on Sunday, Sasha happened to be on vacation, and she was picking vegetables in the kitchen that day, and saw her granddaughter dressed up beautifully and was about to go out, so she asked her where she was going, and Sasha left in a panic without answering.

But she didn't expect that this would be the last time she saw her granddaughter, seeing that the old man was more and more sad, Ah Qiang took the opportunity to come to the house where Ma Shasha lived, and unexpectedly found that he was sleeping in the same room as his grandparents.

After searching the house, Cuong found a number of letters in the drawers of his desk. Judging from the contents of the letters, she should have written them to her mother, and strangely enough, there was no address written on the envelopes, and it seems that Ma Shasha had no idea where her mother was.

After coming out of the deceased's house, everyone felt that Ma Shasha went out in a panic, and he must have gone to see someone, and if he was really as well-behaved and simple as the old man said, then a seventeen-year-old girl would probably go to see most of her favorite classmates.

Just as the police were on their way to the school, the communication company sent a call record from Ma Shasha before her disappearance. It was found that her last phone call was to a girl named Wang Wei two hours before she was killed.

After arriving at the school, the police officers found Ma Shasha's homeroom teacher to find out what was going on. From his mouth, I learned that Ma Shasha, a child, is usually very inferior and withdrawn, and he doesn't have a great sense of presence in the class, but the strange thing is that he has been close to Wang Wei, who has a good family background, during this time.

The teacher called the girl to the office, but Wang Wei immediately cried when she learned the news of Ma Shasha's murder. After her mood stabilized, the police officer asked her directly about the dress and the contents of the last phone call.

Unexpectedly, Wang Wei looked very nervous when she saw the photo, she said that she lent this dress to Ma Shasha on Friday, and it is not clear who she was going to meet when she wore this dress, and the phone call on Sunday was also about returning the clothes.

Ah Qiang looked at her panicked appearance and felt that she was hiding something, so he continued to ask Ma Shasha if she had a good friend of the opposite sex. Wang Wei heard of course what he meant, and after thinking for a while, she didn't know how to answer, and the teacher on the side directly interrupted them when she saw this, and ended the conversation on the grounds that the exam was about to be.

After coming out of school, everyone agreed that this Wang Wei must know something, but because the teacher was present, he didn't say it.

Back to the police station, Lao Ji also made a new discovery, and the laboratory department found in the deceased's fingernails, the dandruff tissue of two different people, which also shows that the murderer may have committed the crime together. However, since there is no comparison object, it is not possible to confirm the identity of the suspect for the time being.

Lao Ji on the side of the conversation looked at the report of the laboratory department, as if he suddenly thought of something, he had tested and compared the soil on the soles of the deceased's shoes, and found that the composition of the soil was very different from the soil at the dumping site, and now the test report shows that the heavy metal content in the soil seriously exceeds the standard.

This indicates that the last place where the deceased stood was near a factory that was not environmentally friendly, and the whisker fibers he found in the deceased's wound were added. Now the laboratory has detected that they come from plants such as reed grass near the river.

Therefore, he believes that the first scene of the deceased's murder should be near a factory with a river nearby and environmental protection is not up to standard.