A criminal policeman under Wen Ning was very happy and said that the case should be about to be solved, which caused Wen Ning's dissatisfaction, Wen Ning scolded him and asked him to take a good look first. In addition to these items, a pencil and a ball of paper were extracted from the site, and of course, corpse mud extracted from a nearby tomb.

The fingerprints of the fourth girl were extracted from both the pencil and the paper, and due to the heavy rain, the appraisers could only extract the mutilated fingerprints, and through local comparison, it was determined that the fingerprint traces belonged to the fourth girl. There was a photograph on the identification material, which recorded what was written on that small piece of paper.

The ball of paper was wet and crumpled again, and when the police were drying it, it was slightly broken, albeit with care. The paper was crumpled, and the pencil marks on it were much lighter. The notes were vague, but on closer inspection, they were still recognizable as what was written.

The paper was very small, only a dozen words, read horizontally, like a person's name. Some criminal police questioned whether the girl knew that she was in danger, so she wrote the name of the perpetrator in advance, and then hid the paper ball and pressed it under her body. Wen Ning thought about it for a moment and thought it was unlikely, because there was still a pencil at the scene, and if it was really what the criminal police officer had speculated, the girl should have hidden the paper ball on her body, not under her body.

Through handwriting identification, the contents of the paper were proved to be written by the girl's own hand.

I thought of another possibility, and I asked Wen Ning to immediately contact the criminal police who were still on the back mountain to see if I could find the names written on the paper on the tombstone at the scene of the corpse. Wen Ning also understood what I meant, and immediately called the criminal police who stayed in the back mountain, Wen Ning reported the name recorded on the paper to the criminal police, he didn't hang up the phone, and asked the criminal police to find it immediately, and after a while, Wen Ning put down the phone.

Wen Ning nodded at me, saying that my guess was correct.

I thought of the book that the four girls were reading, and one of the ten so-called ways to see a ghost was to copy a tombstone. I read the book carefully, so I could immediately think that all I needed to make a tombstone was a pen and a piece of paper. When a person goes to the cemetery when it is dark and fills the tombstone with several names on it, the tombstone copyist can see the dead in the tombstone.

The last item of the identification report is about the corpse mud, and the forensic doctor gave a very accurate conclusion, the corpse mud extracted from the scene is the same as the corpse mud on the eyelids of the three female deceased, the composition is the same, and the mixed mud is also the same.

Putting down the appraisal report, everyone pondered, and at this time, someone knocked on the office door. It was still raining heavily, and the people who came were drenched, and there were several criminal policemen, with a man and a woman behind them. As soon as the man and woman came in, they cried and said that they wanted to see their daughter, and everyone immediately understood that the man and woman were relatives of the fourth girl.

Accompanied by the medical examiner, Wen Ning and I took the couple into the morgue, and when they saw their daughter, the couple could no longer control it and screamed hoarsely. On their way there, the leader called them to inform them of the girl's death.

The couple was much more sensible than the relatives of the other three deceased, and they cried for a long time, and finally begged the police to find the murderer for them. Wen Ning said that he would definitely do his best, and he wanted to ask about the girl, and the girl's father agreed.

The girl's mother was with her daughter in the morgue, and the girl's father followed us back to the office, where the police immediately questioned him. The girl's father said that the deceased had a kind personality and never worried them, which was similar to what the deceased's classmates said about their dormitory.

However, there was a detail that the girl's father said that caught the attention of Wen Ning and me. The girl's father said that about a week ago, the girl called home and cried and said that she had a quarrel with her roommate in the dormitory, and the quarrel was so loud that the girl said she didn't want to live anymore. The girl's parents took turns to persuade her for a long time, and the girl's mood improved.

Wen Ning frowned: "Later, did she call home again?" ”

The girl's father nodded and said that after that, the girl made a few phone calls home, but she behaved very normally. The girl's father looked around and asked if the roommate who had quarreled with the girl had killed her daughter. The girl's father was clenching his fists tightly and his voice was shaking, and he was trying to calm himself down.

Wen Ning honestly told him that the other three girls were also dead, and when he heard this, the girl's father was stunned, and then begged us to find the murderer. Wen Ning nodded, asked the girl's father to sign the interrogation transcript, and let him leave.

When the girl's father walked away, Wen Ning asked me what I thought. He said that the traces at the scene were enough to prove that the fourth girl killed the other three girls, and used a pen to puncture the wounds on the corpse to vent his anger, and then amputated the palms and soles of the three girls' hands. Because of the confession of the fourth girl's father, now even the motive for the murder is known.

The death of the fourth girl is also in the past, and she committed suicide in fear of sin.

But Wen Ning also felt that something was not right, and I nodded, admitting that Wen Ning's analysis made sense. But there are still many doubts about this case.

If the fourth girl is the murderer, the first question is how the fourth girl killed the other three girls at the same time and there is no sign of struggle, you know, no chemicals were found in the three bodies that caused a coma. And, if the fourth girl had amputated her leg to vent her anger, why did she carry the palms and soles of the three corpses and so many pens with her?

It took a long time to pierce the body into a thousand holes, and it also took a lot of time to amputate the leg, which proves that the murderer was calm at that time. In a calm situation, if the girl is the murderer, there is no need for her to carry the palms of her hands, the soles of her feet, as well as those pens with her. There were already traces of the fourth girl at the scene, and she took those things away, which did not serve the purpose of destroying the evidence at all, so this behavior was obviously unnecessary.

Moreover, if the girl is the murderer, she is likely to use the so-called Ten Ways to See, leading the other three girls to a remote place to play, but why should she go to the tombstone.

When I was analyzing with Wen Ning, many criminal policemen also walked in, and they all sat quietly and listened to my analysis.

There is also a suspicion, that is, the confession of the villager who claimed to have seen the suspected fourth girl in the early morning, he said that the girl had a small thing in her hand, but such a big bag of corpse stumps and pens, no matter how wrong you looked, it could not be called a small thing. A criminal police officer asked me if I suspected the villager, I shook my head and said that it was unlikely, if the villager was the murderer, there was no need for him to come forward to testify, because the traces at the scene had been handled very well, and there was no need for him to enter the police's field of vision.

So there are two possibilities, first, the person the villager saw was not the fourth girl, and the other possibility is that the person the villager saw was indeed a girl, but the girl did not carry two bags of pens and stumps in her hands, but took other small things, such as pens and paper used to copy tombstones.

It is likely that the girl went to the tombstone alone, and then, the murderer killed the three girls in the farmhouse, and then went to the grave to kill the fourth girl, and created the illusion that the fourth girl committed suicide after the murder. This is only one of the possibilities, the other possibility is that the girl went to the back mountain twice, when the villagers saw the girl for the first time, the girl had not killed anyone, and after she returned, she killed three girls, and then went to the back mountain, but this time no one saw it.

However, I ruled out the latter possibility, because there was no need for the girl to take the stump and corpse of the corpse to the back mountain. So I don't think the fourth girl is the murderer.

After listening to my analysis, many criminal police officers nodded in agreement. Wen Ning said that what I said made sense, but he thought that when people kill people, their minds are complicated, and they can't be ruled out according to common sense, and he said that maybe the fourth girl wanted to throw the stumps of the corpse into the wild and let the limbs of the three girls separate, which is the biggest vent of anger.

In the end, we decided to divide the investigation of the case into two general directions, one is to assume that the murderer is someone else, and the other is to assume that the murderer is the fourth girl.

Immediately, another criminal police officer asked the two girls in the girls' dormitory what happened when they were playing a pen fairy game. Wen Ning also attaches great importance to this issue, saying that he has sent someone to investigate the two girls to see if they are suspected of deliberately cheating.

I smiled at Wen Ning: "They shouldn't be cheating, what you just said reminded me, I think I understand why the pen moved." ”