civil forensic

Chapter 573

Chapter 573

All the units involved in the case of the three corpses on the Jingyang line are also silently reviewing the case.

The Changyang Criminal Police Detachment was originally the most promising to solve the case, but their focus was wrong. Their main investigation direction was the No. 1 victim, and they tried their best to find the relationship between the two victims.

However, the murderer chose the No.1 victim at random, so this case has become a very difficult random homicide case.It's still a random murder case without a rape plot, which makes the case even more difficult.

Even if the task force of the case was restarted later, the scenario of the random murder case was also considered, but it only faced a more difficult scenario.

The situation of Huo City Bureau and Qingbai City Bureau is similar. Their manpower and resources simply cannot bear such a long-term case investigation.

Even if Jiang Yuan has a mature plan to hand over to them, it will be difficult for the two companies to merge to advance the case.

Wang Shikai's "learning spirit" completely misled the investigation direction of the case.

Normally, homicide cases have several common investigation directions, such as seeking money, seeking sex, or purely perverted serial killer-style random cases. Not only homicide cases, but also various types of cases, the police usually choose from Make a breakthrough in the modus operandi.

For example, if someone robs with a knife, he will still rob with a knife next time; if he uses a plane adze to hit someone on the back of the head to rob someone, he will use the same plane adze next time, and the position of the smash will not be bad; Rapist, I won't choose another drug next time...

The hand-cutting party is always cutting hands, the thieves who "break through" can't climb over the wall, and the thieves who break through the wall can't unlock the lock... The old criminal police in the past, sometimes saw the scene, and could directly call out the ID number of the perpetrator , is the truth.

To use high-end modern vocabulary to describe it, this is called path dependence. A robber who has a successful experience will use the same method to rob next time. There may be a little upgrade and transformation, but the basic appearance is not the same. Will change too much.

When it comes to crimes, most people still choose to be safe.The risk of innovation is huge. Most of the serial cases are often exposed because the perpetrator violated his own established model.

However, in the case of the three corpses on the Beijing-Yangyang Line, Wang Shikai’s modus operandi was completely different. The transportation method may be similar, but because the three cities were changed, the transportation method was forced to change again in the face of different scenarios in the three places. .

Secondly, in the column of common criminal motives, Wang Shikai's criminal motives are also different.

In the first case, he did it for the purpose of learning, in the second case, he murdered deliberately, and in the third case, he did it to confuse the police and get rid of punishment.

Therefore, when choosing a target, Wang Shikai's choices are also different.

In the first case, he chose the easiest target to kill. Moreover, Wang Shikai himself was hesitant to kill for the first time, and there was a factor of waiting for the opportunity. The so-called timing is equivalent to fully reducing his exposure. .

In the second case, Liu Limin, the victim, was the target that Wang Shikai planned to kill.Therefore, he did not screen the targets, but instead used his first murder experience to make the two cases similar but different.

In the third case, Wang Shikai only wanted to confuse the police's attention. Therefore, with the experience of the previous two cases, he improved the criminal method, optimized the selection of targets, and finally changed the location to commit the crime...

At the end of the whole series of cases, the most likely way to catch Wang Shikai should have been DNA.Domestically, DNA testing has only been promoted since 03, and it is basically limited to the provinces and departments.Of course, the use of DNA to solve crimes started very early in 87, but that was the era when there were no reagent boxes, and there were no standard DNA laboratories, not to mention the time required to compare a case of DNA. The cost will be thousands of dollars higher.

The most important thing is that the domestic DNA library only started around 03, and the large-scale use of DNA to solve accumulated cases also started from this time.It was also after this that the ministries and commissions dared to shout the slogan that murder cases must be solved.

However, Wang Shikai was lucky enough to take advantage of a bug that few people knew about.That is, the DNA pollution on the railway is actually very serious.In the era of green leather cars, passenger cars usually did not have black water tanks, which meant that the continuous stream of passengers going to the toilet actually left feces on the train tracks.

A piece of cold knowledge, because the train is running at high speed, the dropping feces is basically in the form of being air-dried, and it is scattered on both sides of the rails.

When the train collided with the human body at high speed at the place carefully selected by Wang Shikai, the scattered human tissues were essentially in a state of pollution from the moment it landed.

On the other hand, although the criminals in those days paid little attention to the issue of DNA, the police officers in charge of the case also did not notice it.Therefore, when the police asked the railway personnel to pick up the dismembered corpses, there was almost no evidence for DNA.

As for the sticky ones on the car, they will naturally be washed away at the front station.The railway bureau only called the police after the case happened, but the train would not stop there and wait. By the time the criminal police found out that it was a series of cases, the car in front might have hit some small animal again.

In the end, the case was tantamount to a bit of a bust.

Liu Jinghui's judgment, Xu Taining's investigation, and Jiang Yuan's fixed-point blasting all played a huge role.It can't be said that if anyone is missing, this case will not be completed at all, but the time and energy spent must be doubled, which means that if there is less, ten times is possible.

At this point in the review, comrades from the municipal bureaus, provincial departments, and ministries all gave up.

There are many things in the world that cannot be copied, so there is no need to force them.

What's more, Jiang Yuan originally had a clearly marked price, but now it has become more expensive.

It took a few more days to close the case.

On the morning of the farewell to Jiang Yuan's return journey, representatives from the Changyang City Bureau, Huo City Bureau, Qingbai City Bureau, and provincial departments and ministries all showed up actively.

Everyone gathered at the high-speed rail station, and the feeling of parting was as sticky as blood.

"I'm not happy staying in the county, so I come to Changyang City to live for a while, to work on a case, or to rest for a while. Anyway, you bought a house and want to go home. It's about raising your feet." Yu Wenshu Obviously heard some rumors, and invited Jiang Yuan pretending to be serious on his face, wondering if he was rolling with laughter in his heart.

Jiang Yuan thanked him, and said, "I'm used to living in the village, and I'm not used to big cities. I went back and sorted out the affairs in the county, so I came to Changyang to continue working on the case."

"En, that's fine." Yu Wenshu patted Jiang Yuan's shoulder, leaned closer and whispered: "If you want help, just say it."

If Jiang Yuan didn't make a request, he obviously wouldn't intervene on his own initiative.

Jiang Yuan nodded his thanks, and then was pulled into his arms by the detachment leader of Huo City Bureau next to him, followed by a deputy bureau of Qingbai City Bureau.

Huang Qiangmin used a lot of strength to snatch Jiang Yuan back.

Immediately afterwards, the detachment leader of the Huo City Bureau hugged Huang Qiangmin into his arms, and chatted carefully.

Huang Qiangmin first bared his teeth at 44.4 degrees, and with the Huo City Bureau's offer, it gradually turned into 66.6 degrees.

"There is no schedule recently, let's talk in detail later." Huang Qiangmin pushed the chest of the Huo City Bureau detachment leader, and left firmly.

Huo City Bureau detachment leader smiled back.

After a round of socializing, everyone's excitement gradually calmed down, and then the prosecutor who came to deliver the car said: "From the current evidence, Wang Shikai's problem is not serious. His younger brother is difficult to convict, and , as far as we know so far, at least when the incident happened, there is a high probability that his brother didn’t know about it, and there may be guesses later, but it should be uncertain.”

"He took someone else's house." The detachment leader of Huo City Bureau next to him was very concerned about this matter.

"The Wang family is willing to pay back, plus the rent for these years." The prosecutor paused, and then said: "Wang Shikai deliberately chose the time when his younger brother was undergoing surgery to kill, and there is no instigation in it. When Wang Shiji is discharged from the hospital, After learning the news of his girlfriend's death, it was Wang Shikai who advised him to calm down and avoid becoming a criminal suspect..."

"It's all from Wang Shikai," said the detachment leader of the Huo City Bureau.

The prosecutor said: "It makes sense, and it is in line with common sense. There is also the issue of corpse handling. Wang Shikai is 1.8 meters tall and has a strong build. The three victims he chose were all women with a weight below 100. He has the ability to carry them independently. , When we identified the scene, we also asked him to give a demonstration, and there was no problem. The most important thing is that he used a tricycle as a means of transportation, and he carried a big man with a height of 1.8 meters, which has disadvantages but no advantages."

His explanations were also for the policemen of other units, including Jiang Yuan and others.If it is an ordinary small case, how to prosecute, the prosecutor will settle it with one word. Only such a big and important case, he will have a little communication.

Jiang Yuan and the others just listened and didn't speak.

From a certain point of view, Wang Shiji is actually a victim. Although he accepted the woman's house, the two parties are rushing to get married and talk to each other. The purpose of buying the house is also to persuade the man's parents to achieve the common goal of both parties.Therefore, at that time, he could be said to have lost his love.

However, on the follow-up property issue, Wang Shiji half-heartedly kept the house in his hands, which was a big stain.

The bigger stain is that the murderer is Wang Shikai.As a brother, Wang Shiji, it is also very difficult to get rid of it completely.

It's just that the law doesn't punish moral problems.

Just like Director Chai Tongchai, the methods he adopted were not noble, but they were also legal and compliant.

In the sound of farewell, Huang Qiangmin, Jiang Yuan, Mu Zhiyang, Wu Junhao and his bald strike team got on the high-speed rail and drove back to Ningtai County.

Wan Baoming, who had been silent all this time, frantically waved his mobile phone and showed Jiang Yuan his Wechat.

Jiang Yuan opened WeChat, and saw Wan Baoming posting a new circle of friends:

Colleagues are sad to say goodbye, and the past is like a tide in my heart.

The time of helping each other is unforgettable, and the team spirit remains forever.

The busy work is closely linked, and it is rare to talk and laugh freely in leisure time.

Life is short and there are many gatherings and separations. May everyone be happy after this farewell.

I hope that the bright moon will always be with you, lighting up the distance and seeking dreams.

The road to travel together is still to come, and I wish you a smooth future.

Mo Dao has no confidant in the road ahead, and no one in the world knows the king.

……

　The poem at the end was made by chatgpt, and it took Xiao Er 10 minutes to adjust and adjust, in order to make Wanbaoming's character set a little fuller, and there is nothing to do with water.Actually, I was able to go to bed at 3 in the morning, but it’s almost 4 in the morning after messing with the ending, meow~

(End of this chapter)