The Xingzigou copper mine was developed after the founding of the country.

It was not small in scale, had a large output, and its resources were quickly depleted.

By the turn of the century, it was no longer worth digging here. Instead, various surface backfilling projects followed.

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The subsidiary company where Tan Yong worked took on this project. However, due to various reasons such as project payment, the surface backfilling work was done for a period of time and then stopped, and did not continue.

This obviously gave Tan Yong a great opportunity.

In order to backfill the ventilation shaft, the company had opened up a passage to the location, and vehicles came every once in a while, making Tan Yong's appearance not sudden.

There were no guards or gatekeepers here, and the safety of throwing the bodies was greatly improved under complete freedom of entry.

Even the backfilling that was done every once in a while meant that after Tan Yong threw the body, there was no need for even basic burial.

The personnel who hoisted down the well didn't take long to confirm the existence of the first corpse.

It was the body of a young, dismembered woman.

The police officers who had been busy for many days were all refreshed.

The dog guarding the well also barked lowly.

Only Heizi remained calm and showed the composure of an old dog.

"It's really useful to use a dog to find a body." Liu Jinghui stood next to Heizi, looking down at the dark ventilation shaft, wanting to touch Heizi but didn't dare.

Heizi's instructor restrained Heizi and said, "Nowadays, police dogs tend to be versatile dogs, preferably with the ability to track, search, and bite. Heizi is smart and learns quickly, and his skills are not inferior to those of a professional dog."

"Is there more to it?"

"Yes, professional dogs need to be mobilized more frequently, and they require high demands on commanders and the dog's physical strength. In addition, the cost of raising a police dog is indeed relatively high, and the cost-effectiveness of a versatile dog is higher, especially for small units." Heizi's instructor was borrowed from Longli County to help, and he was more focused on searching.

Liu Jinghui just pretended to be relaxed, but when the female corpse really appeared in front of him, he couldn't hold back his emotions.

"Judging from the degree of decay, the time of death was more than three years ago. The specific time needs to be determined after we go back. The large pieces of the body have been collected, and the small pieces need to be sorted out." The forensic from the Municipal Bureau arrived underground and then ascended, looking haggard.

Several leaders nodded solemnly.

Liu Jinghui responded with an "um." Originally, finding the body would prove his judgment and reasoning—that Tan Yong had killed more than one person.

But now, everyone's focus was no longer on Liu Jinghui.

"Well done." Deputy Captain Yu Wenshu patted Jiang Yuan's shoulder heavily, and he also felt relieved.

After all, this case happened in Changyang City, and the reinforcements sent by the Provincial Department and the criminal police officers from Ningtai County who were brought up from below were only auxiliary forces. In the end, the main body of the case was still the Criminal Police Detachment of Changyang City.

Now, the case has seen the light of day... no, it should be completely clear. Yu Wenshu really had to thank Jiang Yuan.His middle-aged handsome face showed a friendly expression: "If you have any thoughts or ideas, you can come to me to talk about it later..."

"I want to go down and help." Jiang Yuan pointed to the ventilation shaft.

Yu Wenshu was taken aback: "There are only broken bodies down there."

"I usually don't have the opportunity to work on cases like this." Jiang Yuan explained briefly.

Yu Wenshu then expressed his understanding and said, "Okay, being young is good."

He agreed and arranged for someone to let Jiang Yuan climb into the hanging basket and slowly descend into the ventilation shaft.

Everyone below was indispensable.

Digging up body parts was not something most people would willingly do unless they were forced to. The older forensic investigators were actually more reluctant to do such unpleasant cases.

Only young people like Jiang Yuan, who were fearless, would volunteer.

Underground.

With a diameter of over ten meters, it meant an area of ​​over a hundred square meters.

Four people squatted inside, each responsible for an area the size of a small living room on the ground, plus the walls of the shaft, which were no smaller than this.

Jiang Yuan wore a gas mask and four layers of gloves, digging up the soil and carefully picking up the bones he found.

After three years of destruction, most of the human body's broken tissues were reduced to just bones, but they had not yet evolved into fully bleached bones.

However, over three years and the internal environment had made the bones become brittle, a bit like stale peanut brittle. If you didn't pay attention, the bones would definitely break into more pieces.

Digging up some soil and bones, soon, large pieces of building debris appeared.

At the same time, several broken ribs appeared next to the large chunks of concrete.

"This should be the bottom layer of soil when the body was dumped. Everything above it was backfilled." The old forensic investigator sighed and said, "This job can't be done in a short time. We need machinery. At least we need a hand-held drill and a cutting machine."

"Whatever we need, we'll get it." The nearby criminal investigator said calmly, "There are already two bodies, plus the three kidnapped people. We need to collect evidence for this case. Come and help lift it."

Jiang Yuan stepped forward to help, using a pry bar with the others to pry open a piece of concrete next to them, and then carefully picking out the ribs inside.

A slightly dim glowing ball rolled into Jiang Yuan's hand.

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Jiang Yuan was a little dazed. LV4 crime scene investigation was already a very powerful skill in his opinion, and this could be seen from the performance of the forensic investigators in the Criminal Investigation Brigade of Changyang City.

So, how strong would a LV5 skill be?

But the use of the Cooking [Dog] skill was really questionable.

Could it be that in the end, the winner of life was Strong?"Little Jiang, go rest." The old forensic called out to Jiang Yuan and they both got into the basket.

Jiang Yuan snapped out of it and asked, "Aren't we continuing? There are still bodies below."

"Tan Yong came to identify the scene, let's take a break." The old forensic paused and reminded them, "This project is huge. When we fill in and pour concrete, take it easy. It will take at least a month or two to finish."

Jiang Yuan thought about it and realized that Tan Yong didn't know how many times the bodies had been buried and how long it had been going on. Everything that was filled in during that time had to be dug out, so the project was too big.

After a while, the basket was pulled up to the wellhead and Jiang Yuan and the others were taken to a mountain hollow to rest. Then, a prisoner transport vehicle arrived at the foot of the mountain, escorted by two police cars.

Next, Tan Yong needed to identify the dumping site under the camera's surveillance. This was not only a confession, but more importantly, it confirmed that the suspect was indeed the murderer. This was also one of the reasons why the case had to be kept confidential. There were always details in a case that outsiders could not know.

Jiang Yuan had no intention of watching from the sidelines. As someone who had personally been to the prison, he had a considerable understanding of Tan Yong's brutality and antisocial behavior. He didn't need to "appreciate" it up close.

...

"Forensic Jiang." Wei Zhenguo ran over and hugged Jiang Yuan.

"Did Tan Yong confess? How many people in total?" Jiang Yuan forcefully pried open Wei Zhenguo's fingers.

"When Tan Yong heard the interrogating police officer mention 'Xingzigou copper mine ventilation shaft', he broke down and confessed that he killed six people including the basement. The other five are here." Wei Zhenguo sighed and said, "It's been three years."

"Killing five people in three years and then upgrading to kidnapping and murder?"

"It seems so. He killed one person on average every six months." Wei Zhenguo shook his head and sighed heavily.

Jiang Yuan looked at the abandoned mine area in front of him. Under the sunlight, it seemed to reflect a metallic light, which was a bit dazzling. His eyes couldn't help but become a little moist.

"The case is almost over, let's go back. If we don't go back now, Huang's team will be anxious." Wei Zhenguo coughed twice.

"Okay, let's go home."