Solving the case: Combining the police dog's olfactory genes at the beginning

As soon as he walked into the house, Luo Fei noticed the corpse lying on the cement floor at first sight. The corpse of a skinny old man, who looked to be about sixty years old and was only wearing underwear. The corpse was curled up on its side on the floor, with his hands slightly curled up. He was holding his head up, as if he wanted to protect his head. There were seven or eight blue-black marks on the old man's withered arms.

There is an obvious depression on the left side of the old man's head, which is probably the cause of the old man's death. But the most shocking thing is that there is a hideous and terrifying scratch on the old man's cheek. The scar extends from the corner of the mouth to the ear, and the skin and flesh of the wound are turned out. , the flesh on the wound was exposed, looking particularly oozing.

Moreover, it can be seen that the old man's right cheek is swollen and has obvious slap marks. The marks should be left by being slapped with something similar to shoes.

Luo Fei also noticed that there was a not very obvious strangulation mark on the old man's neck, which should have been caused by a rope or something like that.

It was obvious that the old man was treated horribly before he died.

After Luo Fei, Wu Wei and Zhao Le, who saw this scene for the first time, entered the room and saw the body. They immediately covered their mouths and ran out.

"What kind of hatred and grudges are there? Beating an old man like this is simply an act of an animal." Zhang Haiyang sounded very angry.

Luo Fei continued to check everything in the room. The house was less than twenty square meters. There was a camp bed on the right side of the door. The old man's clothes were scattered on the bed. Next to the bedside of the camp bed was a small wardrobe. The door of the wardrobe was open. Inside Things were turned over in a mess.

"Could it be that the murderer was seeking money and killing? But if he was just seeking money and killing, wouldn't he beat the old man like this, or vendetta disguised as seeking money and killing? But a sixty-year-old man, who would be so difficult with him? ?" Luo Fei observed the situation in the room, and thoughts emerged in his mind.

"There was only one fatal injury on the deceased, and that was on the left side of his head. It should have been hit by a hard object such as a stick that could easily be used to borrow force, resulting in death. However, we did not find a murder weapon at the scene. We suspect that the murder weapon should have been struck by the murderer. Take it away or throw it somewhere." At some point, Yang Mei had finished the investigation and said casually, then walked out of the room. She didn't know whether she told Luo Fei or Zhang Haiyang and the others.

After observing the situation in the room for a while, Luo Fei, Zhang Haiyang and the others followed them out of the room.

Luo Fei noticed that there was a dog house next to the house, but there was no dog in the dog house.

After roughly checking the situation around the house, Liu Haiquan, Zhang Da and the others went to search the bushes around the house.

Zhang Haiyang glanced at Liu Haiquan and the others, and then looked at the people on the other side of the criminal police team who seemed to be discussing something.

"Let's go over and take a look and understand the case, otherwise we won't know anything!" Zhang Haiyang thought for a moment, then strode towards the criminal police team.

Luo Fei naturally followed quickly. He also wanted to know the situation of this case, but it was difficult for him as a new police officer to join the criminal police team. Now that Zhang Haiyang was taking the lead, Luo Fei also followed immediately.

Just when Luo Fei and Zhang Haiyang passed by, Zhao Donglai was finishing the case.

The basic situation of the case is this.

The deceased's name was Tang Quan Quan. He was 62 years old this year. His son and daughter were all working outside, and his wife had long since passed away. He had a nephew named Tang Dayou who contracted 100 acres of barren hills to plant walnuts on Walnut Mountain.

Tang Dayou was usually busy with business matters and had no time or energy to take care of the walnuts on Walnut Mountain, so he paid his uncle Tang Quanquan to help take care of the walnuts. In order to better take care of the walnuts, Tang Dayou even built a house here. Tang Quanquan usually lives here and basically doesn't go down the mountain unless he has something to do.

Tang Dayou would go to the mountain once a week to buy Tang the right to eat and use.

This morning, as usual, Tang Dayou bought something at the vegetable market and then drove up the mountain.

Usually when Tang Dayou's car was approaching the house, Tang Dayou's dog would bark non-stop, but this morning when Tang Dayou stopped the car, he didn't hear the dog barking.

However, Tang Dayou didn't pay much attention to it. Occasionally, Tang Quanquan would take his dog for a walk, thinking that it would be the same today.

After unloading the things on the car, Tang Dayou moved his things into the house and found that the door was just closed and unlocked. He didn't care, thinking that Tang Quanquan had forgotten to lock it.

From the beginning to the end, Tang Dayou never thought that something would happen to Tang Quan Quan. It wasn't until Tang Dayou opened the door with something in his hands, kicked in the door, entered the house, and found the body lying on the ground that he knew something had happened. He was confused for a while, and then Only then did I think of calling the police.

As for the criminal police team, there are currently two useful clues. One is a shoe print left by the suspect on the cot in the room; the other is a camera under the eaves above the main entrance of the house. Tang Dayou A camera was installed above the main entrance of the house, but in fact the camera had broken down a long time ago and is now just a decoration. Unbeknownst to the suspect, he climbed up to the roof and destroyed the camera, leaving a clear mark under the eaves of the house. Fortunately, the fingerprints were left under the eaves. It rained a little last night and might not be visible in another place.

After clarifying the basic situation of the case, the criminal police captain Zhao Donglai asked the criminal police team to search everywhere, especially the murder weapon used by the suspect. Zhao Donglai felt that the suspect could not always carry the murder weapon, so the murder weapon was probably thrown away or hidden somewhere. place.

Zhao Donglai then called the Police Dog Technical Squadron and asked the Police Dog Technical Squadron to bring two police dogs over for search and tracking. In this regard, the role of police dogs is much greater than that of humans.

"Master, where do you think the deceased's dog went?" Zhang Haiyang and Luo Fei were also searching in the bushes. Luo Fei asked Zhang Haiyang.

"Most likely he ran away?" Zhang Haiyang replied casually.

"But according to what Tang Dayou said, this dog was raised by Tang Quanquan from an early age. One person and one dog accompany each other on this mountain. The relationship must be relatively deep. Logically speaking, this kind of dog is very protective of its owner. I doubt that this dog Most likely he was poisoned." Luo Fei speculated.

Zhang Haiyang said: "If the dog was really beaten to death, what about the body? There was no body of the dog at the scene, and there was no blood. The suspect would not have taken the dog away."

This is what Luo Fei couldn't figure out. Just like Zhang Haiyang said, if the dog was murdered, the body should be near the house, but they had already searched the area near the house and found nothing at all.

"Liu Haiquan and the others have discovered something over there." Suddenly a loud voice came from the right, and Luo Fei followed Zhang Haiyang and trotted over quickly.

When the two of them arrived, Liu Haiquan, Zhang Da, and two people from the criminal police team were already here, and then the criminal police captain Zhao Donglai, Zhou Weimin, and Yang Mei also came over.

"Captain Zhao, Suo Zhou, are you looking here?" Liu Haiquan pointed to a fire that looked freshly lit next to the bushes. There were many empty beer bottles, cigarette butts, snack bags, and bones beside it.

Zhao Donglai stepped forward and touched the charcoal pile, then looked at the beer bottle next to it, and then said: "It should have been left yesterday."