All participating units in the Jingyang Line Three Corpses are also silently reviewing this story.
The Changyang City Criminal Police Detachment was originally the most promising to solve the case, but their focus was wrong. Their main investigation direction was the first victim, and they tried their best to find the relationship between the two victims.
However, the murderer's choice of the first victim was completely random, so this became a very difficult random murder. It was still a random murder without a rape plot, which made it even more difficult.
.
Even if the special team that restarted the case later considered the scenario of random killings, it only faced a more difficult scenario.
The situation in the Huo Municipal Bureau and the Qingbai Municipal Bureau is similar. Their manpower and resources simply cannot withstand such a long-term case investigation.
Even if Jiang Yuan has a mature plan for them, it will be difficult for the two mergers to push forward the case.
Wang Shikai's "learning spirit" completely misled the direction of the investigation of the case.
Normally, there are several common investigation directions for murder cases, such as money-seeking, sex-seeking, or purely perverted serial killer-style random cases. Not only murder cases, but various types of cases, the police
Usually, we choose to make a breakthrough through operational techniques.
For example, if someone robs someone with a knife, he will rob someone with a knife again next time; if he hits someone on the back of the head with an adze, he will use the same adze next time, and the location of the hit will be the same; if someone uses ether to force someone to rob someone,
Traitor, I won’t choose any other medicine next time...
The hand-chopping gang is always chopping off hands. The thieves who "break in for free" cannot climb over the wall, and the thieves who climb over the wall cannot open the lock... The old criminal police in the past sometimes saw the scene and could directly call out the identity card of the perpetrator.
No., that’s the truth.
To use a higher-end modern vocabulary to describe it, this is called path dependence. A robber who has had a successful experience will use the same successful method to rob next time. There may be a little upgrade and transformation, but the basic appearance is not the same.
There will be too many changes.
When it comes to crimes, most people will still choose to play it safe. The risks of innovation are great, and most serial cases are often exposed because the criminals violated their established patterns.
But in the Three Corpses on the Jingyang Line, Wang Shikai's methods of operation are completely different. The transportation methods may be similar, but because three cities have been changed, the transportation methods are forced to change again in the face of different scenes in the three places.
Variety.
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 studying, in the second case, he deliberately killed someone, and in the third case, he did it to confuse the police and escape 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, who was hesitant to kill for the first time, had the factor of waiting for the opportunity, and the so-called opportunity fully reduced his chances.
exposed.
In the second case, Liu Limin, the victim, was the target Wang Shikai deliberately wanted to kill. Therefore, he did not select the target. Instead, he used the experience of the first murder to make the two victims similar but different.
In the third case, Wang Shikai just wanted to confuse the police's attention. Therefore, with the experience of the previous two times, he improved his criminal methods, optimized his target selection, and finally changed the location...
To the end of the entire series, the most likely method to capture Wang Shikai was originally supposed to be DNA. The domestic promotion of DNA testing only started in 2003, and it was basically limited to the scope of provincial departments. Of course, the time for using DNA to solve crimes
The first one was started very early, in 1987, but that was an era without reagent kits, and there were not even standard DNA laboratories. Not to mention the time required to analyze a case of DNA, the cost was several thousand higher.
The most important thing is that the country began to have DNA banks around 2003, and the large-scale use of DNA to break the accumulation began at this time. It was also after this that the ministries and commissions dared to shout the slogan that the accumulation must be eliminated.
However, Wang Shikai was lucky enough to take advantage of a bug that few people knew about. That is, DNA contamination on railways is actually very serious. In the era of green trains, buses usually did not have black water tanks, which meant that there was a continuous flow of black water.
Passengers who go to the toilet actually leave a constant stream of feces on the train tracks.
A little trivia: since the train is running at high speed, the fallen feces are basically in a dried state and scattered on both sides of the rails.
When the train hit the human body at high speed at a location carefully chosen by Wang Shikai, the scattered human tissue was essentially in a contaminated state from the moment it landed.
On the other hand, although criminals at that time rarely paid attention to the issue of DNA, the police officers in charge of the case did not notice it either. Therefore, when the police asked railway personnel to pick up the broken bodies, the DNA that could be used for identification was
There is almost no more.
As for the ones stuck on the train, they would naturally be washed away when they arrived at the front station. The railway bureau only called the police after the incident occurred, but the train would not stop there and wait. By the time the criminal police discovered that it was a series of accidents, the train in front had
Maybe they have hit some small animals again.
In the end, the eucalyptus was broken bit by bit.
Liu Jinghui's judgment, Xu Taining's investigation, and Jiang Yuan's fixed-point blasting all played a great role. It cannot be said that without anyone, this project would not be completed at all, but doubling the time and energy spent would definitely mean that
Anything less is ten times more likely.
When the review reached this point, comrades from various 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 finish the piece.
On the morning of farewell to Jiang Yuan on his return journey, representatives from Changyang City Bureau, Huo City Bureau, Qingbai City Bureau, as well as provincial departments and ministries all showed up actively.
Everyone gathered together at the high-speed rail station, and the feeling of parting was as thick as blood.
"If you are not happy in the county, just come to Changyang City to live for a while, do some work, or take a break. Anyway, you have bought a house and want to go home. It's just a matter of doing something." Yu Wen
Shu Shu obviously heard some rumors, and he invited Jiang Yuan with a serious expression on his face, but he didn't know if he was rolling with laughter.
Jiang Yuan thanked me and said, "I'm used to living in the village and I'm not used to the big city. I went back to straighten out the affairs in the county and came to Changyang to continue my work."
"Yes, that's okay." Yu Wenshu patted Jiang Yuan's shoulder, leaned close and whispered, "If you want to help, just ask."
If Jiang Yuan had not made any demands, he would obviously not have intervened on his own initiative.
Jiang Yuan nodded and thanked him, and then he was pulled into the arms of the detachment leader of the Huo City Bureau, followed by a deputy bureau chief of the Qingbai City Bureau.
Huang Qiangmin used a lot of effort to snatch Jiang Yuan back.
Immediately afterwards, the detachment leader of the Huo City Bureau hugged Huang Qiangmin into his arms and started chatting in detail.
Huang Qiangmin gritted his teeth at 4 degrees at first, and gradually turned it into 6 degrees as the Huo City Bureau opened the price.
"We have no schedule recently, let's talk in detail later." Huang Qiangmin pushed the chest of Huo City Bureau detachment leader and left firmly.
Huo Municipal Bureau detachment leader smiled back.
After a round of socializing, everyone's excitement gradually calmed down, and then they heard the prosecutor who came to deliver the car say: "Judging from the current evidence, Wang Shikai's problem is not big. As for his brother, it will be difficult to convict him, and
, Based on what we know so far, at least at the time of the incident, his brother was most likely unaware of the incident. He may have made some guesses later, but it should also be uncertain."
"He took someone else's house." The detachment leader of the Huo Municipal Bureau next to him was very concerned about this matter.
"The Wang family is willing to pay back the money, plus the rent for these years." The prosecutor paused and then said: "Wang Shikai deliberately chose the time when his brother was undergoing surgery to kill. There was no instigation involved. When Wang Shiji was discharged from the hospital,
After learning about the death of his girlfriend, it was Wang Shikai who advised him to calm down and avoid becoming a criminal suspect..."
"Wang Shikai said it all," said the detachment leader of the Huo Municipal Bureau.
The prosecutor said: "It makes sense and is consistent with common sense. There is also the issue of corpse transportation. Wang Shikai is 1.83 meters tall and has a strong build. The three victims he chose are all women weighing less than 100. He has the ability to be independent.
When we identified the site, 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 then carrying a big man who was more than 1.8 meters tall had both disadvantages and disadvantages."
His explanation was also explained to the policemen from other units, including Jiang Yuan and others. If it is an ordinary small crime, the prosecutor will decide in one word how to prosecute. Only such big crimes are necessary.
, he just needs to do a little communication.
Jiang Yuan and others only listened and said nothing.
From a certain perspective, Wang Shiji is actually a victim. Although he accepted the woman's house, the two parties were looking for a partner for marriage. The purpose of purchasing the house was also to convince the man's parents to achieve the common goal of both parties. Therefore,
At that time, he was devastated by the loss of his love.
However, regarding the subsequent property issues, Wang Shiji reluctantly kept the house in his hands, which was a big stain.
The bigger stain lies in the fact that the murderer is Wang Shikai. As a brother, Wang Shiji would find it very difficult to completely distance himself from the murder.
It's just that the law does not punish moral issues.
Just like Director Chai Tongchai, the methods he adopted were not noble, but they were legal and compliant.
In the farewell, Huang Qiangmin, Jiang Yuan, Mu Zhiyang, Wu Junhao and his team got on the high-speed train and drove back to Ningtai County.
Wan Baoming, who had been silent all this time, was waving his phone desperately and showing his WeChat message to Jiang Yuan.
Jiang Yuan opened WeChat and saw that Wanbaoming had posted a new circle of friends:
It’s hard to say goodbye to a colleague, and memories from the past come flooding back to my mind.
The time when we are in the same boat is unforgettable and the team spirit remains long-lasting.
Busy work is closely linked, and it is rare to have leisure time to talk and laugh.
Life is short and there are many gatherings and separations. I hope everyone will be happy and happy after this farewell.
I hope the bright moon will always accompany you and light up your dreams in the distance.
The journey together is not yet over, and I wish you a smooth future.
There is no way to go without friends. No one in the world will know you.
