No such person [criminal investigation]

The old urban area of ​​Jinning City is in the north, and the new urban area is continuously expanding to the south.

The suburban county used to be a small county, but now it has been included in the scope of Jinning City, but the development has not kept up with it, the streets are narrow, there are many old self-built houses, and there are many farmlands around, a bit like the urban-rural fringe .In this kind of place, there are relatively few cameras on the street.

The suburban counties are inherently remote, and the place where the fire broke out is one of the most remote places in the suburban counties.Except for a few self-built private houses there, basically everything that should be demolished has been demolished.There are several tin houses scattered around, which are the residences of homeless people.

When the fire broke out, sparks floated out of the door of the self-built houses and ignited the nearby garbage dumps, which attracted people's attention and called the fire alarm. 119 came to put out the fire soon. After unlocking the door, two bodies were found inside, and the criminal police were notified.

Qi Zang and his team found after the site survey that the windows and doors of the houses that caught fire were locked from the inside. Except for the traces caused by the fire alarm forcibly picking the locks, the locks of the doors and windows of this room showed no signs of damage, nor any traces of mechanisms. .

This is a real secret room murder.

After the trace inspection and fire inspection, the fire started at the curtain and then spread to the whole house.Gasoline components were extracted from the remaining curtains and the surrounding area.It can be speculated that the arsonist poured gasoline on the curtains and set the rest of the house on fire.

The faces of the two corpses were a little burnt, making it difficult to identify their faces.However, the overall degree of damage is not too serious.

The autopsy results were also interesting.

The two corpses have certain characteristics in common - the corpses are not in a fist fighting posture, the corpse spots are dark, and there is no life reaction on the skin burns. The autopsy found that there is no charcoal and smoke dust in the respiratory tract, esophagus, and stomach. Therefore, it can be judged that the two corpses The corpses were cremated after death.

However, after forensic examination, there are obvious differences between the two corpses.

One of them was relatively easy to determine the time of death, it was a female corpse, who had just died less than 24 hours ago.

The other corpse was a male corpse with obvious freezing damage on his body. He should have been dead for a long time. He had been in a frozen state before being burned. It is temporarily difficult to guess the real time of death.

There was a large freezer at the scene, which was empty, just enough to put a corpse, which undoubtedly further affirmed the forensic doctor's judgment.

There is no matching result in the DNA database, and the identity of the deceased cannot be confirmed immediately.

If there was no "jumping" incident, and the bodies of Ning Yeye and Li Fuwang were in front of them, it would be difficult to identify the bodies.

But the two people who are still missing, Lai Kang and Zhang Xiaoliu, happen to be a man and a woman. The two corpses in this fire are also a man and a woman, which inevitably arouses people's associations.

The police went to Zhang Xiaoliu and Lai Kang's home in the unfinished building to extract their hair, sweat, etc., and finally Lihua managed to extract DNA.

After comparison, the two corpses were really Lai Kang and Zhang Xiaoliu.And cyanide was found in all of them.

So far, it has been confirmed that all four "jumpers" died, and the real cause of death was all cyanide poisoning.

The body of the deceased Li Fuwang sank in the artificial lake of Shangpinhaoting, and was discovered after a giant view appeared; the body of the deceased Ning Yeye was dismembered and hidden in the cold chain warehouse.

The two newly discovered bodies are the male Lai Kang, whose real time of death is difficult to determine because the body was frozen before being burned; the female body is Zhang Xiaoliu, who died within 24 hours.

At the case meeting, people from various departments conducted countless discussions on the murderer's method of killing, and made various deductions on possible secret room methods, but the conclusion was that the door lock was indeed closed from the inside.The trace inspection has been meticulously inspected, even using a microscope, and there are no suspicious traces.

In addition, the high temperature caused sweat and grease to evaporate, and the scene was rinsed with fire water guns, so no effective fingerprints could be extracted from the scene, which made it even more difficult to find the murderer.

Li Zhengzheng couldn't help but said: "From the moment he planned the jumping case, he felt that the murderer was a smart person. He didn't know that the police couldn't detect cyanide, did he? Then, his method of poisoning the murder itself shows that it was a homicide." case.

"Since that's the case, why did he go to all the troubles to fake a scene of suicide or accidental fire?

"Also, why did the two people die at different times? Could it be that Zhang Xiaoliu was always alive, but at the same time, Lai Kang's body was always in the freezer? They lived in the same space? This is incredible, right? ...

"Wait, Zhang Xiaoliu, she is also a victim, she shouldn't have taken the initiative to do this...

"That is, the murderer put Lai Kang's body in the freezer of that private house, and imprisoned the living Zhang Xiaoliu in that private house? Wait, it's still wrong...

"Since everyone died of cyanide, can it be assumed that Lai Kang and the previously discovered Ning Yeye and Li Fuwang all died on the same day? Of the four, only Zhang Xiaoliu remained? Why? Why didn't the murderer kill her until now?"

Li Zhengzheng suddenly thought of a very frightening possibility, and hurriedly asked Gong Nianci: "Has she been raped|violated? Did the murderer keep her just to use her to satisfy some of his sexual desires—"

Li Zhengzheng's conjecture was denied by Gong Nianci. "The extent of the burning of the two corpses is not serious. I checked Zhang Xiaoliu's lower body, and there is nothing unusual. This possibility can be ruled out for the time being."

Leaving aside Shaoyue Mountain for the time being, the four members of the rights protection group lived in one group and lived in an unfinished building community, and they hardly had any communication in their lives. Almost none of their relatives and friends knew each other, even if one of them was with someone else After the feud, that person wouldn't have any grudges against all four of them.

The only person who had a common grudge against them was the people from Yuan's Real Estate.

But several shareholders all have alibi, not only that, they will not perform such a trick to tarnish Yuan's reputation, they have no motive.

In addition, the CEO Shao Yueshan is still dead, making things even more confusing——

Who on earth had such a big hatred against the four of them and killed them all?

What is the reason why this person killed three first and kept Zhang Xiaoliu so long?

There is another doubt, as Li Zhengzheng said——

Since the murderer was poisoned, why did he forge a suicide chamber?

American mystery novelist Carl proposed 12 types of secret rooms.The shadows of these 12 kinds of secret rooms can be seen in countless mystery novels and classic secret room plots in movies and TV shows.

But these bridges are actually difficult to achieve in today's real life.Because criminal science and technology are advanced enough.

The technical criminal police from the city bureau all made in-depth analysis, and even checked the small friction marks on the plug with a microscope, and completely ruled out the possibility that the lock could be locked outside.

In the end, Xu Ci's reasoning ability, ability to grasp details, and ability to guess the motive of the murderer are all top-notch.Not long ago, Qi Zang was almost convinced by him that Zhang Xiaoliu was the instigator of everything.

But now Zhang Xiaoliu was first poisoned and then set on fire.

Could it be that Xu Ci's guess was wrong?

But who is the murderer who has been hiding in the dark?If he really exists, why is everything unreasonable and all links unreasonable?

Then, if all the impossibilities are ruled out, there is only one possibility left.

At this time, Bai Shuwei turned her head around and pointed out a fact: "Hey, at least one thing can be explained now, Qi Hao is indeed not the murderer, at least not the murderer who killed Zhang Xiaoliu and Lai Kang.

"Then why did he admit that he killed five people before? We have to think about the breakthrough from him? Let him meet his elderly parents, can this persuade him to come back? Why is he so hard to think about it? Others are to blame."

Several people discussed and discussed, but there was no result. Finally, they all looked at Qi Zang and asked in unison: "Boss, why don't you say anything? What's your opinion?"

Qi Zang raised his head, his eyes were cold and his expression was serious.

After seeing Li Zhengzheng, Bai Shuwei, Gong Nianci and others one by one, he said, "Have you ever thought about why Zhang Xiaoliu died at this point in time?"

"Why did the murderer kill her at this time? I really didn't expect it." Bai Shuwei said, "This matter is confusing from the beginning to the end. My mind is almost muddled."

Qi Zang asked himself and answered, "I'm afraid it's because we asked Yuan Bichun for DNA."

"What's the connection between these two?" Bai Shuwei really didn't follow.

"Our actions made some people think that the plan to get Qi Hao to help Yuan Bichun to take the blame failed. So in order to protect Yuan Bichun, Zhang Xiaoliu died."

Qi Zang's expression was extremely solemn, "Qi Hao is useless, so we need a new sinner. Qi Hao's confession is for Yuan Bichun. Zhang Xiaoliu's death is probably also for Yuan Bichun."

Li Zhengzheng was confused. "No, boss, so who is the murderer..."

"The technique of the secret room does not exist. Then the so-called 'murderer' is the one who locked the doors and windows, poured gasoline on himself, and lit the fire himself." Qi Zang picked up his mobile phone and sent a message to someone, "Have you found out? "

Soon, he received a reply from Bu Qingyun: "I'll be right there."

Five minutes later, Bu Qingyun really appeared at the door of the meeting room, and brought his test results: "I found a biscuit box at the scene of the crime, and there was a lot of cyanide on the biscuit. Teacher Gong's side is the deceased. The ingredients of biscuits were detected in the contents of the stomach, and the two belonged to the same kind of biscuits. In addition, there was half an unfinished biscuit in the box, and Zhang Xiaoliu's saliva was detected on it."

Qi Zang took Bu Qingyun's words, and immediately said: "Zhang Xiaoliu locked the doors and windows, poured gasoline, lit the fire, and ate biscuits. Before she was burned to death, she died of cyanide poisoning. This is also because the fire was not big. , The reason why the body was not completely charred. She couldn't die in the fire first."

"She, why did she make it so complicated... It confuses me..." Li Zhengzheng couldn't help asking.

"Because she is pleading guilty to the police in this way. She must die of cyanide. She is telling the police that she and the other three were killed by the same poison. This is a serial murder case. The killer only one.

"Of course, maybe she felt more uncomfortable when she was burned to death or suffocated by thick smoke. This is another reason why she chose to poison herself first."

Qi Zang said, "Poison yourself first, and then create the fire. Firstly, it is to let the two corpses be noticed as soon as possible. Otherwise, in such a remote place, the dead bodies don't know when they will be discovered; secondly, , She set fire and specially built a secret room, just to tell us that she committed suicide.

"Taken together, she is telling us that she is a sinner who has confessed and committed suicide."

At this point, Qi Zang further elaborated on Xu Ci's previous reasoning. In this way, Zhang Xiaoliu's psychological motives and methods along the way are completely clear.

The only thing that is unknown now is how deeply Yuan Bichun was involved in the series of murders.

Bai Shuwei was almost shocked in place for a long time before she managed to calm down and sort out her thoughts.She looked at Qi Zang. "Boss, I agree with this idea. Maybe after her daughter died, Zhang Xiaoliu didn't really want to live anymore. And she may have established a deep friendship with Yuan Bichun a long time ago, so she is only willing to live now." To help her kill Shao Yueshan, she did not hesitate to kill the other three people, and even risked her own life...

"Just now you said that Zhang Xiaoliu chose to commit suicide at this time because she wanted to protect Yuan Bichun. Does this mean that Yuan Bichun is very suspicious? But we have no evidence... This is really..."

·

the other side.

Yellow Water Cemetery.

There was light rain from time to time, Xu Ci was wearing a suit and silver-rimmed glasses, and was standing in front of a tomb holding a black umbrella.

The photo on the tombstone is a lovely girl who looks very young.

Her smile was innocent, as if she had never suffered any suffering in the world.

On the tombstone, her name is written in the column of the name: "Zhang Yangguang."

Her father's name is not on the tombstone, only her mother "Zhang Xiaoliu" is written.

In Zhang Xiaoliu's world, the gambler's ex-husband probably ceased to exist long ago.

The only daughter she cares about and loves in this world is dead, and she can no longer find the meaning of life.She would feel that it would be good to do something for the people she cared about even before she died.

Yuan Bichun should be regarded as a friend by Zhang Xiaoliu sincerely.

Yuan Bichun is about to give birth.

Perhaps Zhang Xiaoliu would very much hope that at least her child would be born safely.

If one's own child dies, at least the child of a good friend can be kept.

Zhang Xiaoliu...does she think so?

Xu Ci's eyes fell on the front of the tombstone, where there were fresh apples, candies, and beautiful flowers.This means that Zhang Xiaoliu just came here not long ago.

For Yuan Bichun, Zhang Xiaoliu chose to commit suicide.

Before she died, she had to take another look at her daughter to feel at ease.

Seeing something out of the corner of his eye, Xu Ci moved a few steps away, walked to another strange tombstone, and then used a big tree next to him to block his figure.

Immediately afterwards, he saw a person walking step by step with a little difficulty.

——That was Yuan Bichun who was pregnant.