Serious Crime Unit 1

Chapter 376 The Death of the Most Beautiful Teacher (9)
"As long as the murderer leaves a trace of blood on the way to escape, even if the blood is diluted to one hundred thousandth by rain, the blood tracer dog can sniff it out. That is to say, if a drop of blood is dropped into the double bathtub, the blood tracer dog will be able to sniff it out. It can be smelled. There is a 'dog doctor' named Daisy in the UK who can sniff out one ten millionth of a blood stain. That is to say, if a drop of blood is dropped into water the size of two swimming pools, Daisy can also smell it. It can even smell cancer cells. So far, 550 cancer cases have been detected in clinical trials by olfactory examination, with a success rate of 93%, and it also saved the owner's life." Lu Yingying answered Zhu Gang.

"I believe that the murderer had no less than 20 milliliters of blood spattered on his body when he killed. Because the murderer was wearing only one piece of clothing on a hot day, the blood would definitely drip when the murderer was escaping. The murderer would definitely be nervous after the murder, so when he was escaping During the process, there will be a lot of sweating, and the sweat will be mixed with blood and drip down continuously on the escape route. Even if the murderer burns the blood-stained clothes, the blood tracking dog can still know whose home the murderer ran into. If the murderer's identity is known, The hiding place, then the owner of this house must be the murderer, because the crime occurred between 1 and 2 in the morning, when all the villagers had closed the door, and only the owner could open it with the key." Wu Jiang agreed with Lu Yingying's statement.

"Then why didn't you think of using blood stains to track the dogs when the crime occurred?" Zhu Gang asked straightforwardly.

"This is not a panacea. It has been more than eight hours since we arrived at the scene, and the murderer has already escaped. What if the murderer is not from the village? It is impossible for blood tracking dogs to track the murderer thousands of miles away."

"Oh, I understand. We can use blood tracking dogs only as a last resort, or when we know that the murderer was running away but don't know where he was running to."

"That's not the case. The first is that the murderer was injured and there was blood dripping; the second is that the murderer must have the blood of the deceased, and the blood must be dripping continuously for it to be effective." Wu Jiang explained to Zhu Gang.Zhu Gang agreed that Wu Jiang would call blood tracking dogs from the Yangtze City Bureau to assist.

Che Xiaolin and Xiao Ke drove to the Yangtze River Municipal Bureau to pick up the blood-stain tracking dog. This dog is a German shepherd and is named Xiaohu. It is thin and has a ferocious appearance. In fact, it is very friendly and has an indomitable and magical olfactory tracking ability. It can track odors even for more than half a month, and has set a record of tracking for 220 kilometers. It is said that it has 3.5 million olfactory cells, making it one of the best among tracking dogs.

Che Xiaolin brought trainer Xiao Bing to the scene. Zheng Zuhua took out a test tube containing Fang Mindong's hard work and handed it to Xiao Bing.

Xiao Bing opened the lid of the test tube, handed the test tube under Xiaohu's nose, and let him smell the source of the smell. After sniffing for more than ten seconds, Xiaohu nodded, indicating that he remembered it, and then walked towards the door, walking back and forth at the door. After a while, he walked along the wall outside Fang Mindong's bedroom.

Outside the wall is a road leading to the mountain. There is no one living on the mountain. It is the mountain road that the villagers have to pass when going up the mountain to work. Zhu Gang feels that Xiaohu has found the wrong place.Xiao Bing told him to rest assured that he could [-]% trust Xiaohu's ability.

Xiaohu stood motionless under the wall, and then sent a message to Xiao Bing, telling him that there was blood on the ground.

Wu Jiang walked forward, squatted down to observe, and saw a light red water stain. He took out the luminol reagent and sprayed it on the ground, then took off his leather shoes to block the light. He could see an obvious occult blood reaction. He took Take out the cotton swab and extract the blood. After finishing, continue to follow Xiaohu up the mountain.

Because the mountain road was very small, everyone had to line up and follow Xiaohu up. Xiaohu found another blood stain nearly 100 meters away from the first drop of blood.In this way, he climbed up for about 500 meters, and a total of 5 blood stains were extracted, and many shoe prints of the same shoe size and pattern were also extracted, which were most likely left by the murderer.

Gaogang Village is built on the mountain. Behind the village is a Feng Shui Forest, which is full of all kinds of dense and towering trees. This is the result of hundreds of years of villagers strictly prohibiting felling.

The Feng Shui forest is shaped like a pile of sand, with small top and big bottom.The little tiger reached the top of the sand pile and started walking down. At this moment, the little tiger ran under a ke tree.

The Ke tree is nearly two meters in diameter. The bottom is eaten by insects and the center of the tree is also hollow. The tiger cub dives in, but is stopped by Xiao Bing. Xiao Bing is afraid that there are poisonous snakes inside and could hurt the tiger, so he stops it because of his training. An excellent blood tracking dog requires a lot of effort. Xiao Bing would rather be bitten by a poisonous snake than let the tiger cub be injured.

Xiao Bing knew that venomous snakes like to hide in the heart of shady trees. He found a small branch and "snapped the snake" first. After beating it, he knew that there was no venomous snake, so he asked the tiger to get in. After a few seconds, the tiger took out a white A T-shirt and a pair of gray jeans. The clothes and pants were stained with mottled blood. This must have been the murderer who came here to change clothes after the murder and then left.

Zhu Gang put his clothes and trousers into the evidence bag and asked Wu Jiang: "Why did the murderer climb up the mountain to change clothes? Why didn't he just go home? There was no one on the road at one or two o'clock in the middle of the night. Who would have seen him covered with clothes?" Where’s the blood?”

"Maybe there are people at home, such as children, wife, and parents. He is afraid that he will make noise when opening the door and be discovered by them... No, maybe the murderer is an outsider?" Wu Jiang said, thinking deeply.

"It can't be an outsider, right? Outsiders probably don't know that there is a hollow tree here. If they are outsiders, they should use transportation to leave immediately after killing the people."

"No, if you use transportation to leave the scene, you must pass through the Xiaoyang Township Government Gate and the Township Middle School, because there are electronic eyes in both places. If he leaves using transportation and is wearing blood-stained clothes, we will definitely find him out. Therefore, he You have to change your clothes before leaving."

While talking, the tiger walked down the mountain. It had already smelled the body odor of the murderer's clothes. Based on this smell, the tiger followed him all the way.

Xiaohu went to the three-way intersection on the west side of the village and stopped here for a long time, as if the smell had stopped.The village primary school is in the east of Gaogang Village. They went up the mountain from the east and down the mountain from the west. They walked more than 1000 meters on the mountain road and came to the three-way intersection. They stood at the three-way intersection and walked to the west to see the mountains. To the south was the village center. To the east It's Gaoshangang Primary School.Xiaohu chose to walk south. He passed through the center of the village and finally came to the village committee square, and then he didn't know where he was going.Why doesn't Xiaohu go to someone's house?Did the murderer not go home after changing his clothes, but went directly to the village square and left by means of transportation?

Are they from the village or from outside?Everyone thinks that the parent who was working outside secretly ran home, killed Fang Mindong, went to the mountain to change clothes, and left secretly after changing, so that no villagers would know that he was home, not even his relatives. Know.

If this is the case, then it is an easy thing to collect DNA samples from the suspect's relatives, or call all the parents back to collect blood, and then compare them. The murderer will naturally be exposed because his body fluids are on his clothes. , a comparison will give you the result.Everyone is in a good mood to see the glimmer of hope.This is all the result of Xiaohu.

Zhu Gang's cell phone rang, and when he saw it was Xie Tianliang, he pressed the answer button: "Director Xie, I just left your Gaogang Village and haven't arrived in Xiaoyang Township yet. What can I do for you?"

"Du Xiaohong is dead. He drowned in the Dongxi River and was discovered by the villagers. Come and take a look. This matter may be related to the murder of Fang Mindong." Xie Tianliang said in a solemn tone, which showed that he was in a very bad mood.

Du Xiaohong was one of the girls raped by Fang Mindong. She was only 10 years old this year. Her father worked in Nanjing. Her mother was working in the mountains and accidentally fell off a cliff and died. Only her elderly grandmother took care of her.

"Okay, let's turn back right away. Where is Du Xiaohong's body now?"

"It's still on the beach of Dongxi River."

"Okay, don't let anyone move the body to avoid destroying the physical evidence." Zhu Gang was shocked: Did Du Xiaohong commit suicide or homicide?If the murder was definitely related to the Fang Mindong case, would he have been silenced by the murderer?He felt the pressure was coming. One case remained unsolved, and another started...

When everyone came to Dongxi, Du Xiaohong was lying on the river beach on the left. Several village cadres stood aside at a distance. Only Du Xiaohong's grandmother was crying heartbreakingly, which was heartbreaking.

Zheng Zuhua stepped forward to check. Du Xiaohong was wearing a pink dress with many violets printed on the skirt and elegant baby's breath printed on the upper body. She was very beautiful. She wore white stockings and blue and white sneakers. Although the skirt , shoes and socks were all stained with mud, but they were all new.

Judging from her clothing, she should have committed suicide.Du Xiaohong is the most beautiful of all the students. Her skin is as white and tender as egg white, her eyes are big and bright, like the Big Dipper, her hair is black and shiny, and her limbs are slender and coordinated, like an elf made in heaven. Unfortunately, her beauty is unlucky, and she shines and flies like a shooting star.

Zheng Zuhua looked at her sculptured face, his eyes wet, because he also had a daughter who was as beautiful as her.

"How did Du Xiaohong die?" Zhu Gang squatted down and asked Zheng Zuhua.

"She had clenched fists with both hands and was neatly dressed. Her fingernails were blue and blue, there was foam near her mouth and nose, sand in her nose, her chest and abdomen were swollen, and there was a large amount of drowning fluid in her stomach, which are typical signs of drowning."

"Could he have killed him?"

"Probably not. She didn't have any resistance or restraint injuries. I judge it to be suicide."

"Why did she kill herself?"

"Perhaps she is afraid that we will tell who the murderer is from her mouth? If that is the case, she is too naive and should not do it."

"It's also possible that he was forced to commit suicide by the murderer." Zhu Gang said.

(End of this chapter)