Sister Du xiǎo is still young and has a jiāoxiǎo figure, and she always giggles when her close friends get together, and she usually looks like a child who doesn't grow up, but she didn't expect to have such a terrible encounter! Xu Xinyi has a big grin on the outside, and he is extremely old-fashioned and hot on the inside, even if he is not very deep in love with Du Xiǎo sister Jiāo, seeing this situation, he is angry with his apricot eyes wide open, willow eyebrows upside down, his hands tremble uncontrollably, and his mouth rises and falls quickly due to rapid gasping.

A calm and powerful hand fell on her shoulder, and Qin Lin's voice was low and hoarse: "I promise, the culprit will be caught, and Ming Zhengzheng will be punished!" ”

His eyes burned with deep flames, and his expression was calm like a judge of hell who rewarded and punished nothing, and he was giving an unquestionable verdict with a bōlan mouth.

To be precise, his deep affection is a little terrible now, but Xu Xinyi only has 100% of the newcomers in her heart, and she believes every word that Qin Lin says—if criminals are evil ghosts that harm living beings, Qin Lin is the Yama who rules the dark hell and punishes sins in the underworld.

Under Qin Lin's encouraging gaze, Xu Xinyi calmed down, wrapped his hands in a cloth, and pulled out the stick that had pierced into Shao Nv's body with a trembling expression.

The stick was not treated, it looked like the murderer had broken it from somewhere, it had long been soaked in blood, and the place where the body was poked by it.

Qin Lin looked at it and frowned, and added three points to his hatred of the criminal, all kinds of signs indicated that the stick was forcibly pierced before his death, this criminal was so despicable and ferocious, he was really inferior to a beast!

However, the results of the next examination were different from the previous two times, Xu Xinyi Xiǎo searched between the deceased's blood-covered double tuǐ, but did not find the ròu jelly found on the corpse of the previous two cases.

"Something is wrong" Qin Lin chin stricken, thoughtful Xu Xinyi and Lu Yuanzhi both looked at him with blank eyes, and waited for a while without seeing him speak, or Sister Xu Daxiǎo spoke first: "Why, didn't you say that the criminal methods would escalate?" It does look more brutal than the first two. Damn, that's a bastard! ”

"There is an upgrade, but," Qin Lin thought for a moment, and carefully explained his doubts.

Generally speaking, when a serial murderer receives positive feedback from a strong stabbing in the process of committing a crime, the degree of distortion and perversion of his personality will be further deepened, and the phenomenon of crime escalation often occurs, such as the case from freezing to death to drowning and then escalating to strangulation, the criminal's means are becoming more and more direct and effective, and the "satisfaction" brought by the victim's struggle to death to the criminal's distorted heart is also getting stronger and stronger, which is in line with this inference.

But some specific methods of committing crimes will not change, because serial murderers are originally psychopaths, and most of them have the psychological characteristics of extreme paranoia, if he is asked to change the means of committing crimes, it is more uncomfortable than killing him, for example, Qin Lin once handled a classic serial murder case, the murderer killed nine innocent people, eight of whom died by cutting their necks with sharp blades, and the remaining one was strangled to death, what is the reason for this.

After the trial, it was ascertained that the criminal had witnessed his neighbors killing sheep many times when he was a child, and of course he used the technique of slaying his neck with a knife, which left a very deep imprint on the criminal's heart, and since then he subconsciously believed that "only by attacking the neck can it be completely fatal", so he committed the crime with a knife every time.

The only time he killed by strangulation was because he accidentally did not carry a knife, but his psychological trajectory was still reflected in the method of committing the crime: he was strangled with a rope without a knife, and the attack site was still the victim's neck.

Back in the series of serial murders that led to the murder of three nvxìng in the city of Nanjing, the first two times there was ròu soup jelly, why didn't the third one appear?

"Isn't it the same person who committed the crime?" Lu Fatzi hesitated, and finally asked a question.

Xu Xinyi immediately retorted: "It shouldn't be, it's obvious that míyào is also used in this one." ”

Qin Lin nodded approvingly, Xu Xinyi's reasoning was correct.

Like the first two deceased, there were no signs of binding on the wrists, ankles, etc., of Du Xiǎo's body, and you must know that even if the body was weak, the great pain of being so ravaged and pierced into the máo rough stick would cause the victim to burst out with far more strength than usual, and there would be a struggle that would make the criminal easily subdue him, even if the criminal was a strong man. At the same time, no traces of blood or human tissue were found between Du Xiǎo's fingernails, indicating that she did not make an effective resistance at all, so there is no other explanation than míyào.

In order to confirm that he had done the test with the dog again, Qin Lin turned the body upside down and pressed the abdomen to make it vomit out part of the stomach contents, and the dog immediately fell down on all fours after eating. ,

The bruises and pinching marks all over the body, and the use of míyào's modus operandi, prove that the deceased was indeed killed by the heinous serial murderer, and that the possibility of the second criminal imitating the crime is very small.

Why was the ròu soup jelly left on the first two occasions, but not this time? It's a visible beacon of criminal minds!

There is no doubt that the murderer officially used ròu jelly instead of J liquid because he did not have the ability of a normal male xìng, and he left this thing on the corpse, subconsciously telling himself: I have obtained her, have completely and completely possessed her, and exercised the power of male xìng in her.

If the criminal is a nv person, then ròu jelly represents insult and belittlement, no matter how beautiful, gentle and elegant the victim is, pure and lovely, the criminal smears it with ròu jelly instead of J liquid, imagining that it has been truly tarnished, and from then on, all her virtues are obliterated, and she becomes a broken shoe that has been lost and humiliated.

Regardless of the former or the latter, the application of ròu jelly is an essential process, even more "meaningful" to the paranoid type of criminal than the killing itself.

So why didn't he continue to use ròu jelly? You must know that in this case, in the eyes of the criminal, the case is no longer "perfect", which is quite uncomfortable.

Could it be that he or she didn't have time to use ròu jelly because of the time constraints? And in the first two cases, there was no murder weapon left on the deceased, but this time there was an extra branch

Qin Lin scrutinized it carefully, his eyes as sharp as a knife examined the corpse like a scanner, not letting go of any suspicions, leaving no omissions.

There is a faint feeling of discomfort -- this is the unique intuition of criminal investigation experts, if the case is reasonable, they will feel "comfortable", if it is abnormal, they will be confused because of the strangeness.

Finally, Qin Lin found what made him not "comfortable": in the first two cases, although the deceased was covered in bruises, it represented the characteristics of nvxìng, and it was also the place where the criminal deliberately "insulted" or "possessed", and there were no obvious scars, leaving only ròu jelly; But this time, the ròu jelly was gone, but it was poked by máo's rough sticks, and the damage was very different from the previous two times.

The injuries suffered by the deceased in many parts of his body concealed this, and the previous inference of escalating the crime also made Qin Lin not pay enough attention to it. But now that I think about it, something is wrong.

The sī of the victim must have a specific psychological meaning for the criminal, as was evident in the first two crimes committed by this beast, and the mentality belonged to the "possession" of the male xìng crime or the "insult and debasement" of the nvxìng crime, but this time, it was closer to pure "destruction".

Generally speaking, serial murder may be accompanied by the escalation of criminal methods, but it is unlikely to shift in specific psychological signs, such as the serial murderer who used to cut his throat that Qin Lin caught, because of the subconscious imprint of "only by attacking the neck can be completely fatal", even if he does not carry a knife, he will strangle and kill, and will never switch to using a hammer to knock his head, poison, fire prevention or other means.

"Could it be that a novice committed a crime, and the psychological characteristics have shifted?" Qin Lin scratched his scalp and put this matter down for the time being, and had to deal with other things.

Because the corpse was still very gentle when the corpse was found, Qin Lin checked the corpse problem, corpse zombie spots and other phenomena, and determined the time of death to be between half an hour and an hour, and now it is Hai Shizheng, so she was killed during the period from Xuzheng to Hai Shichu. This is also in line with the statements of several Yahuan.

Sister Du Xiǎo is not as introverted as Sister Yin Xiǎo, and she often can't hide any emotions, after playing in the back garden this afternoon, she seemed very excited, first stayed in the study for a while, and then returned to the study after dinner, and told the maids not to disturb.

Knowing that a little later, several maids held lotus seed soup and called no one to answer outside the study, so they panicked, opened the mén and saw that it was empty, and hurriedly searched everywhere, and soon the body of Sister Du Xiǎo was found at the corner of the courtyard wall and near the partial mén.

After this deviation and the study, Mén figured out that the key was in the hands of the old woman, but this afternoon, Sister Du Xiǎo took the key to her own custody on the grounds that she was going out to the poetry meeting this morning. In other words, like Sister Yin Xiǎo, she went out and was killed by herself!

"Damn, does that criminal have míhún soup?" Niu Dali couldn't help but scold.

Hearing this, Lu Yuanzhi, Han Feilian and Xu Xinyi shouted at the same time: "In the study, maybe there will be clues left." Of course, Qin Lin immediately led someone to the study to check.

Compared with Sister Yin Xiǎo's boudoir, Sister Du Xiǎo's study is much more playful and cute, leaving the mark of less NV life everywhere, but Qin Lin and the others couldn't care about sighing and sighing, and immediately plunged into the intense and meticulous search work.

Lu Yuanzhi, who was in charge of the desk, found that the gap between the big inkstone and the desktop was relatively large, so he immediately moved the inkstone away, and lù out of Fang Sheng, who was stacked on the ground: "Found it, found it!" Everyone was overjoyed, they didn't expect the clue to come so easily this time. However, no one expected that after Fang Sheng opened it, everyone's faces became extremely strange.

In black and white, Juanxiu's handwriting was written clearly: "Parents, the child is going to catch the wicked person who killed Sister Yin, don't worry, there are a lot of soldiers and horses brought by Sister Xu!" ”