Chapter 88 Case 18: Trapped in a cocoon (2)

Author: Gao Buwei

Han Wenjun brought the equipment to Tan's house. She never expected that voiceprint identification would come in handy just after she came back. She first analyzed the first video and basically confirmed that it was shot at night and there was no background sound.

There was only a very low cicada cry. When I analyzed the second video, I finally discovered that there was a lot of noise in the background.

Han Wenjun used sound processing software to amplify the noise and separate out 8 sounds. Each sound can be played independently. The first one is the sound of Lu Qingmei talking, the second one is the campus broadcast during the school recess, and the rest are machine-made sounds.

The sound of passing trains is not very distinguishable. At least it is certain that the place where Lu Qingmei was detained is not far from the school, but there are more than 100 primary and secondary schools in the city, and the campus broadcasts are similar, so the scope of the investigation is still very large. There are many motor vehicles.

Passing by, it proved that the place of detention was not far from the road. The difficulty was that almost all the schools were on the roadside, and it was still impossible to determine which school was near it.

Just after some progress was made, everyone fell into silence again.

Huang Yiwei suddenly had an idea: "I have an idea." He ignored everyone's shocked expressions and ran quickly to the living room. He grabbed Tan Hailong's arm and pulled Tan Hailong aside: "Longlong

, you listen to me. Aunt Lu is tied up. I know you are anxious and your heart is very confused, but the most important thing now is to calm down. You calm down, we need your expertise now to help us distinguish some sounds. Only you

If we can tell the difference, we may be able to rescue Aunt Lu. Do you understand what I mean?"

Tan Hailong said a little feebly: "Team Huang, what can I do?"

"Come on, come with me!" Huang Yiwei pulled him into the study room, pointed at the computer and said, "Wenjun has separated the sound of the video. Except for Aunt Lu's voice and the school's campus broadcast, the rest is

The sounds of some motor vehicles. Calm down and listen carefully to what kind of vehicles these motor vehicle sounds are coming from."

Huang Yiwei mentioned the car, and Tan Hailong really gained confidence. His face began to glow with hope: "Sister Wenjun, start letting go."

After playing the first paragraph, Huang Yiwei said: "Pi Peng just said it was the sound of a motorcycle, and everyone thought it was right. But I always heard that there were other sounds in the sound of the motorcycle. What is your judgment?"

After listening to what Huang Yiwei said, Tan Hailong listened again. He said: "This is the sound of a three-wheeled motorcycle, not a two-wheeled motorcycle. The engine power is relatively high, but this car is new, and the muffler

The effect is quite good. The sound in the sound should be the sound of the iron plate vibrating in the back compartment of the tricycle. It should be that the tricycle is empty." Everyone really took it. As soon as Longlong took action, it became clear what kind of medicine would cure what disease.

Then the second paragraph was played. After listening to it, Tan Hailong said: "This is the sound of electric vehicles, the sound of an electric three-wheeler and a two-wheeler electric vehicle passing by at the same time."

After listening to all the unidentified sounds, Tan Hailong made judgments one by one.

The third type is the sound of an automatic car. The car's power is average and it should be a CVT gearbox.

The fourth sound is the sound of a large truck with a loud engine sound. It should be a heavy-duty truck.

The fifth one is the sound of a manual transmission car.

The sixth type of sound is not the sound of a motor vehicle and cannot be determined.

After finishing speaking, Tan Hailong seemed to have thought of something else: "I think the road that all these cars pass by should be uphill."

Huang Yiwei asked: "Are these judgments based on evidence?"

Tan Hailong said: "I heard the sound of trucks and manual transmission cars first releasing the accelerator, then shifting gears, and then continuing to refuel. It should be the sound of lowering the accelerator first, then changing gears, and finally refueling to go uphill."

Che Xiaodong asked: "Shouldn't a car rush uphill when going uphill? Why do you slow down and shift gears slowly?"

Tan Hailong's eyes were firm: "I guess the car behind was blocked by a tricycle, so everyone's speed slowed down."

Everyone suddenly realized that they had to admire Tan Hailong's understanding of cars. Che Xiaodong is a car lover, and Tan Hailong is a person who understands cars. Huang Yiwei was very happy, and now it was certain that Lu Qingmei was locked up in a cell near the school.

There is a section of uphill road nearby, the road conditions are complicated, and various vehicles are driving.

Based on Tan Hailong's inference, Che Xiaodong expressed his thoughts: "I am familiar with the roads in Tianyang City. There are no uphill roads. I think this section of the road is in the suburbs."

The scope was further narrowed, and Huang Yiwei was very happy with everyone's performance. Huang Yiwei asked Peng Ying to put the map of Tianyang City on the computer screen.

Peng Ying said: "There are 46 primary and secondary schools in the suburbs, which is quite large."

Huang Yiwei said: "Finally there is progress. If we investigate these 46 schools one by one, there will always be gains. Tomorrow, a group of people will be waiting for the kidnapper's phone number, and the rest will go to the police station in the jurisdiction to check the area near the school. Tonight everyone will take turns

On duty, take turns to rest!”

In the morning, each group received their tasks and went out.

After a night's rest, Tan Fengxiang seemed to have recovered and became calmer. He took the initiative to find Huang Yiwei and asked to see the second video last night. Huang Yiwei couldn't resist him and asked Peng Ying to play the video for him.

.

After reading it, Tan Fengxiang felt very strange: "Who is Xiaotian? Is there a new employee from Longteng?" Thinking about it, it is impossible for him to know everything about Longteng Auto Repair, after all, he is not in charge of it personally.

Huang Yiwei asked: "Uncle Tan, is there anything wrong?"

Tan Fengxiang said: "Oh, no."

Tan Hailong seemed to have recovered. After settling his father, he took the initiative to come to the study.

Tan Hailong said: "Team Huang, after identifying those voices yesterday, I figured it out. Instead of worrying and feeling sad secretly, it is better to actively look for my mother. I have been pampered since I was a child and have never left my mother. My mother suddenly disappeared.

I did panic a little. Now, I have calmed down, I listen to you, and I will do whatever you tell me to do."

Huang Yiwei patted him on the shoulder and hugged him: "Longlong, that's right. Uncle Tan is not young anymore, and his blood pressure is still a bit high. You must stay calm. I will find you when I need you."

You, take good care of Uncle Tan." Tan Hailong nodded and went out.

The kidnapper didn't call all morning. Han Wenjun stayed up all night and restored the kidnapper's original voice in the recording. After identification by the Tan family and his son, they felt that it was not the voice of an acquaintance. According to Huang Yiwei's arrangement, each group went out to investigate.

46 schools, and each team came back by 12:00 noon. After a whole morning of investigation, 30 schools were eliminated, and there were still 16 schools that we had no time to check.

Tan Fengxiang has been calling relatives and friends, but unfortunately he has not been able to collect the amount required by the kidnappers. He is thinking that in order to save his wife, he must transfer the store. The store and inventory are only worth about 5 million, and the distribution qualifications and sales channels

It is quite valuable, with the possibility of a premium.

It really didn't work, so I had to transfer it to another Mercedes-Benz 4S store in the city. Unfortunately, I have not been on good terms with Lu Xiaotian for many years. Lu Xiaotian once asked a friend to propose the acquisition of Longteng's sales and after-sales system, and also said that it would be possible to invest in it, but he flatly refused at the time.

.First of all, he is not short of funds, and secondly, he is not willing to give up more than 20 years of hard work. Tan Fengxiang still has not given up his fantasy, maybe there are other ways.

It was already past 12:00 noon, and the kidnappers still didn’t call. Everyone was as anxious as ants on a hot pot. Tan Fengxiang still hadn’t collected enough 20 million in cash. He decided that if the kidnappers called again, he would give the money to him first.

them.

Huang Yiwei was full of doubts, and even had a feeling that the kidnappers didn't seem to understand money, and the arrangements were not very thorough. First, let a 50-year-old hypertensive patient travel alone with hundreds of kilograms of things. Second, 20 million

How are they going to handle the ransom? If they don't deposit it in the bank, where can they put it? Third, kidnapping cases with a ransom of 20 million are rare in the country. If they dare to ask for so much money, they should be a well-organized criminal gang, but their performance does not seem to be very good.

major.

When Huang Yiwei was thinking a lot, the doorbell rang. Tan Hailong opened the door. There was no one outside, only an envelope was seen on the ground. Tan Hailong took the envelope to the living room and opened it in front of everyone. There was an envelope inside.

A note made from cut paper was wrapped around a bloody severed finger. The content of the note was "You disobey, this is a small punishment!"

Seeing the severed finger, Tan Fengxiang was stunned and speechless. Tan Hailong almost collapsed. It can be seen that he has a very good relationship with his mother.

Tan Hailong knelt in front of Tan Fengxiang, crying and said: "Dad, please move the store out. Save my mother, I will never spend money recklessly in the future."

In fact, Tan Hailong has never been a second-generation rich man who lived and drank. For a long time, his colleagues did not even know that he was a second-generation rich man. He was really anxious! Tan Fengxiang was moved by his son's tears and made up his mind to transfer the store.

, it’s important to save his wife’s life.

When everyone was indignant, panicked, or sympathetic, Huang Yiwei tried his best to stay calm: "Let Uncle Tan and Longlong rest in the bedroom first, and call the forensic doctor and Dai Jiaxing to come, hurry!"

Since this case was a kidnapping case, there was no body at the scene and the forensic doctor was not present. Now that a finger appeared, it was time to call the forensic doctor. Ten minutes later, Cheng Liya and Dai Jiaxing came, but the test results were surprising.

The amputated finger was fake, a prop made of silicone, which could be mistaken for real, but the blood on the severed finger was real. Ling Shuang came forward and explained the test results to Tan Hailong. Longlong was finally relieved, but he still had to extract it.

His DNA was used to confirm whether the blood belonged to Lu Qingmei. Tan Hailong provided his DNA with an uneasy mood, but a worrying situation still emerged. The blood on the falsely amputated finger did belong to Lu Qingmei, and Longlong was anxious again

.

Huang Yiwei quickly advised him: "A fake finger is stained with Aunt Lu's blood. The kidnappers just want you and your son to panic. Don't you see? They just want to scare us. How can you take care of Uncle Tan if you are so impulsive?"

,Rescue Aunt Lu?"

Longlong slowly calmed down and stood aside breathing heavily. He adjusted his emotions and helped Tan Fengxiang walk to the bedroom. Before he reached his father's bedroom, Tan Fengxiang's cell phone rang in the living room. Various technical work types

Everyone quickly took their places. Tan Fengxiang came over and answered the phone.

This time, Tan Fengxiang spoke first: "What did you do to my wife?"

The kidnapper said: "She is still alive! If you dare to play tricks again, I will give you the real thing!"

Tan Fengxiang said hurriedly: "No!"

The kidnapper asked: "Is the money ready?"

Tan Fengxiang said: "There is still 6 million left!"

The kidnapper said coldly: "It seems you think I dare not kill anyone!"

Tan Fengxiang said hurriedly: "What you want is 20 million. I'm not printing money. You have to give me some time."

The kidnapper warned Tan Fengxiang: "There are still more than four hours before the bank closes. If you don't prepare before 5 p.m., you will bear the consequences!"

Tan Fengxiang wanted to ask about Lu Qingmei's safety, but as soon as he said "Oh," the kidnapper hung up the phone. The call time was too short and the kidnapper's location could not be located. The number was a virtual online number and the owner could not be queried.

Tan Fengxiang said to Huang Yiwei: "Team Huang, you have already tried your best. I am going to switch stores to raise funds, so you don't have to worry about it." Tan Fengxiang deeply hurt Huang Yiwei, and he indirectly told all the members of the serious crime team

An eviction order was issued.

Tan Hailong advised Tan Fengxiang: "Dad, we still have to believe in the police! We will definitely rescue my mother!"

Tan Fengxiang said helplessly: "I hope so!"

It seemed that he was not completely disappointed with the police. Huang Yiwei gathered the team members at the scene into the study room and held a brief meeting.

Huang Yiwei said: "You have all heard what Uncle Tan said just now. This is a shame for our serious crime team. He is right. We should review our incompetence. We can no longer let the kidnappers lead us by the nose.
To be continued...