A couple was preparing to make out in a hotel, when suddenly the sound of flies and a strange smell next to them caught the woman's attention. The woman followed the smell to the bed, lifted the sheet and saw a naked female corpse lying under the bed.

Police investigations revealed that the deceased's name was Chunlan and was a bar girl. Chunlan's time of death was between seven and nine o'clock last night, and there was a smell of soap on the body, but there was no blood residue, and it was obvious that the murderer had cleaned it up. Police officer Lao Ji used a searchlight to find blood stains on the wall and in the bathtub. The police officer next to him said: The murderer also took away towels and soap, and the police also found Xiaomei's clothes in the trash can outside. It seems that after the murderer killed Chunlan, he scrubbed her with soap in the bathtub, carried her to the bed, and then wiped the blood with a towel, and finally took all the evidence away.

The forensic examination found that Chunlan had many knife wounds on her body, but these knife wounds were relatively shallow, and the real cause of death was death due to excessive blood loss in the aorta. But instead of coming out, this large amount of blood flowed into the chest. It also makes it easier for the killer to clean up the crime scene. However, there were no traces of the deceased being violated, and Lao Ji guessed that the murderer's methods seemed to be practicing how to kill.

The man's motive for the murder may have been purely for fun, and judging from the knife wounds, the killer had apparently learned some medical knowledge. In addition, there was a bloody fingerprint in the deceased's belt, and after fingerprint matching, a man named Ah Hei was found, who had a criminal record. The officers found Hei's home, where he was playing happily with his wife and son. The police arrested Hei on suspicion of killing Chunlan. Lao Ji took people into the house to search for evidence, and suddenly found that a stranger appeared in the house. took away Ahei's two sons, who turned out to be Ahei's wife's ex-husband Brother Qiang. From his wife, she learned that she did not know that Ah Hei had a criminal record. When asked where did Hei go last night? His wife only knew that he regularly went to the company every Wednesday night to attend a business report meeting. Lao Ji found the person in charge of the company and learned that the company did not have such a thing, indicating that Ah Hei was lying to his wife.

In the interrogation room, Hei kept saying that he was innocent and that he cheated on his wife because he could be alone one night a week. This is the last free time for a middle-aged man, as for the original wounding case, Ah Hei said: It was his girlfriend in college who accidentally injured herself, and she was afraid that the family would find out that the two were in love, so she told the police that she had injured her. Lao Ji was also very helpless about this kind of one-sided statement, so he had to take out the photo of the deceased for Ah Hei to identify, but Ah Hei didn't even have the courage to look at the photo of the corpse. Obviously, this timid person can't be a murderer who takes murder as a child's play, but why are there Ah Hei's fingerprints at the scene? After comparison, the police found that the fingerprints left behind seemed to be printed with a printing press, and the texture of the fingerprints that were pressed was not the same. Obviously, this was not left by Ah Hei at the scene, as if someone deliberately took Ah Hei's fingerprints to frame him.

In addition, the police also found that a stain on the bed sheet was a mold, which usually appears in the bathroom, but the hotel cleans the room every day, and it cannot be the hotel. It is likely that the murderer brought it himself, but this mold is common enough to get Hei off suspicion. Lao Ji asked Ah Hei again, except for your wife, there are those people who can come in and out of your room at will, Ah Hei said: The house is rented, and the female cleaner and the landlord have the key.

Suddenly, at this time, Ah Hei remembered that his wife's ex-husband did not have the key to this house, but he came home several times and saw him appear in the house, and he suspected that his ex-husband was to blame him for remarriage. So the police questioned Brother Qiang. Brother Qiang is that he and his ex-wife divorced for three days, and his ex-wife married Ah Hei, obviously this remarriage is impossible. But he just couldn't swallow this breath, so he secretly investigated Ah Hei in order to find Ah Hei's other unspeakable secrets. So he lied to the landlady that he had lost the car keys in the house, and asked the landlady to take the keys and open the door for himself. But the police found proof of Qiang's alibi that night.

The case was at an impasse again, and Lao Ji rearranged his thoughts, suspecting that the time of death of the corpse might be a little off. So Lao Ji took out two pots of flowers for comparison, one was frozen, and the other was at normal temperature. As a result, the cells of the frozen petals were ruptured, and upon further investigation, the cells of the corpses were also ruptured. The bodies were frozen, which meant that the killer had lowered the hotel's air conditioning to its lowest temperature after the killing. After the killer finished processing the crime scene, he turned off the air conditioner so that the time of death of the body could be changed. Sure enough, Lao Ji went to the power company to check the electricity consumption of the hotel, and the electricity consumption of the hotel's air conditioning increased a lot for a while. Obviously, the murderer turned the air conditioner to the lowest level for a long time, and then Lao Ji suddenly remembered why Ah Hei's wife didn't know that he had a criminal record, but her ex-husband Brother Qiang did. The officer explained: It may be the information that was bought. On the dark web, you only need to give money to get other people's personal information, and soon the police found clues from the dark web.

is a company called Ruifeng, which once sold Ahei's information, but the person who bought the information was not Brother Qiang. It was the landlord Xiaowei, the police came to the landlord's house, and the landlady said: They will not casually investigate the tenant's privacy habits, but Lao Ji found a forensic book in the landlord's house, this kind of professional book, outsiders rarely buy and read.

Lao Ji was a little suspicious of the landlord, so he went to the bathroom to check on the toilet, but he actually found the missing soap in the bathroom, and the landlady admitted that it was brought back by her husband. The husband also used this soap to help her take a bath, and then the police found the same mold at the scene of the crime in the bathroom, as well as some soft plastic used to print fingerprints. The landlord Xiaowei was taken to the interrogation room, he did not admit his crime, but Lao Ji directly reasoned about the whole crime process.

The water pipe in the landlord's house burst, so the landlord asked Hei to come over to help repair it, in fact, this is the landlord's bureau, in order to take the opportunity to copy Hei's fingerprints. Then the landlord asked Chunlan to go to the hotel, first tied Chunlan to the bed, and then went home to eat to make an alibi, and when it was nine o'clock, the landlord returned to the hotel again to kill Chunlan, and then lowered the temperature in the room and pushed the time of death forward. And this knowledge comes from the forensic science book that the landlord specially bought. In the face of this evidence, the landlord admitted that after he found out that Ah Hei had a criminal record, he planned this exciting case of blame, and this was simply because his life was very boring. Job. Dine. Sleeping day after day, he felt alive when he saw Chunlan until her life slipped out of his hands. But that's a living person, for this kind of beastly behavior, Lao Ji said: You will stay in this cold prison for the rest of your life.

In the end, Ahei was released, he hugged his wife and son, and will cherish the life he lived for later...

End of this chapter