Yang Zhangzhi suddenly walked into Zhuo Lefeng's line of sight, which made him feel surprised at the same time, but also had to think about the contact point. Yang Zhangzhi had to be invited over for questioning, although there is no evidence pointing to this person at present.

In fact, when the police asked Yang Zhangzhi about Bai Shifang's situation, he didn't show surprise. It turned out that after breaking up with Bai Shifang, Yang Zhangzhi still retained the contact information of some relatives and friends around Bai Shifang, and he had already learned about the tragedy through the circle of friends this morning, so when the police mentioned it, his emotions were no longer as excited as when he learned about it.

"Do you think his reaction is really normal?" Outside the interrogation room, Jin Xiaochen watched every move inside through the surveillance.

Zhuo Lefeng took the initiative to avoid suspicion in view of his relationship with Yang Zhangzhi and did not apply for interrogation, but he also paid attention to the dynamics inside. Every word Yang Zhangzhi said echoed in Zhuo Lefeng's mind, at least so far, Zhuo Lefeng really didn't notice anything unusual about Yang Zhangzhi.

"Yang Zhangzhi is 1.8 meters tall, but there is still a difference between him and close to 1.9 meters. At the same time, as far as I understand and observe, he does not at all fit the characteristics of a professional killer. He and Bai Shifang didn't have much to do with each other after they broke up, but in his conversation, he did reveal a nostalgia for the past. Zhuo Lefeng shook his head, "I don't really believe that he has anything to do with this case." ”

"It's just a routine question, and you don't have to have too much psychological pressure!"

Seeing the end of the questioning, Jin Xiaochen patted Zhuo Lefeng's shoulder and left first. Not long after, Yang Zhangzhi came out of it, and after meeting Zhuo Lefeng, a bitter smile appeared on his face.

"I really didn't expect you and me to meet again in this kind of place!"

Zhuo Lefeng shook his head and said in surprise. The two walked outside the police station, and Zhuo Lefeng said sorry: "I'll apologize to you first, I asked them to bring you back for questioning." ”

"What's so sorry about this, you're a police officer, you're rigorous, and if there are too many coincidences, you must be suspicious. I mentioned Bai Shifang earlier, and it didn't take long for her to die. Coupled with the fact that you found out that the murderer's evacuation line happened to be on the line where I lived, if I were a police officer, I would have doubted myself. ”

"Just understand! I heard your conversation just now. Now it's just the two of us, and I have a few more questions for you in private. ”

"Just ask! If I can help you police find the murderer as soon as possible, I know everything. ”

"Thank you. With what you know about Bai Shifang and Chu Duanbing, will the two of them be killed for a vendetta? ”

"I don't know much about Chu Duanbing, but with what I know about Bai Shifang, she is not a person who provokes right and wrong, except for those things with me back then."

So, did the murderer really pick the victim with the word chess in his name? The killer prepared those handwriting stamps in advance and stamped them on the victim's buttocks once he killed the other person.

"Then why do you think the two of them were chosen?"

Yang Zhangzhi shook his head: "I don't know. I only know that Chu Duanbing doesn't often take Bai Shifang to the construction site, but this time they were killed at the same time, and Shimen Lake is indeed a material supply point for Chu Duanbing. ”

Chu Duanbing happened to take Bai Shifang to the construction site, and the two were kidnapped together! This is very critical. Because after the two were killed, the police had already checked Chu Duanbing's family and company. No traces of abduction have been found in either location. After questioning witnesses, it was basically determined that Chu Duanbing and Bai Shifang had left after having dinner together near the company at noon yesterday, and then lost contact.

Bai Shifang rarely went to Chu Duanbing's company at noon, but it happened that Bai Shifang not only went yesterday, but also had lunch with Chu Duanbing, and then left together! This is again a fortuitous coincidence. While Zhuo Lefeng was talking to himself, he did not forget to tell Yang Zhangzhi, "If you have clues, please tell me as soon as possible." ”

"Definitely!"

Nodding and leaving, Yang Zhangzhi's eyes were a little confused. Passing by Zhuo Lefeng's side, he let out a long sigh. This breath is like a farewell to the past.

In fact, he has more or less never come out of his relationship with Bai Shifang, and now that Bai Shifang is dead, he is forced to start a new life.

Time is pressing, and although the direction is not clear at present, the police must have a direction to investigate.

At lunchtime, Zhou Shushan directly asked everyone to bring the food into the conference room, and they needed to determine their ideas immediately.

After summarizing the information, Zhou Shushan introduced: "Bai Shifang was not violated when he was killed, and there were no other injuries on his body. Her death was no different from the death of the other three people, so it is certain that the purpose and method of the other party's killing were very clear without any hesitation! This serial murder case can currently rule out the possibility of binge killing. Because the murderer used chess to select the victim, and the murderer should have had contact with the victim, the victim did something different than usual before being killed. The combination of the two shows that the murderer is well-planned, clear-headed, and directional. ”

Zhuo Lefeng followed: "The first stage of the serial carnival killer is more random, but at present, this murderer is not a random killing. The technical department has identified several image spots of the suspect, but this person has a strong sense of self-protection and still has not obtained a clear facial pattern of him. Therefore, in the case that the identity of this person is not yet known, we must analyze the law of this person's crime. This man committed the crime decisively, and each time he suffered seven fatal knife wounds, no more than one, and no less than one. The medical examiner's report showed that all seven stab wounds were identical. Even the order of the suspected piercing is the same. Therefore, I venture to guess that this person not only has a careful plan to commit crimes, but even has a habit of committing crimes, which does not rule out obsessive-compulsive behavior. ”

"Forced seven knives, and in the same position?" Jin Xiaochen said, "Coupled with the seal on the buttocks, this person does behave in a unique way." ”

"It's not just an ordinary unique, it's even a program. Have you noticed that Ma Sancai and ** Xian have rope strangulation marks on their necks, but Chu Duanbing and Bai Shifang have no neck strangulation marks, but they have traces of rope binding on their bodies. This means that the person showing the rope is also a homicidal procedure. And the role of the rope is either to bind or strangle the neck, in short, to leave the stranglehold marks of the rope on the victim's body. This kind of work is very procedural, and I don't want to do more or less during the period, which is really a bit of an obsessive-compulsive behavior. ”

Zhou Shushan concluded: "In other words, the killing procedure of this person is roughly as follows: first, select the victim with the word chess piece in the name, and then contact the victim to try to make the victim do something different from usual on the same day." The time lag caused by this behavior is then used to either kill the victim directly or take the victim away. In the process of killing, the murderer will definitely create strangulation marks caused by rope on the victim's body. At the same time, he must be fatal with seven knives, even the position of the assassination is the same. After the death of the victim, the killer will stamp the seal that has been prepared long ago on the buttocks of the deceased. The victim was then redressed. Throughout the crime, the murderer is very protective of himself, not only washing the scene and sorting the victim's clothes, but also destroying the evidence as much as possible. This person has a strong purpose in committing crimes, and he is very procedural, and he has not left any flaws so far, and he can be described as meticulous from beginning to end! Such a procedural killer who is very cautious and organized, and even has some obsessive-compulsive disorder, means that his next case must be the same. ”

Zhuo Lefeng asked Jin Xiaochen to turn on the projection, and a chessboard appeared on the screen: "The first one is a horse, and the second one is a car." The third and fourth are soldiers and soldiers. Similar to the chessboard opening Pegasus, then getting on the rook, then the sergeant and arch pawn. If it were you, what would you play next? ”

A policeman immediately said: "If it's defense, it's a flying elephant, and if you want to attack, you can shoot the cannon." In short, it will be the last move. ”

"A person who has a rigorous criminal procedure and does not want more or less in each step must not be too aggressive!"

Another cop smacked his tongue: "Can a serial killer not be aggressive?" ”

This time it was Jin Xiaochen's turn to add: "Most people think that serial killers are more radical, perverted and bloody, but in fact, there are still differences between serial killers and serial killers, for example, if it is a carnival serial killer, they are more aggressive, because they themselves are venting and don't care much about whether they will be arrested in the end." But if it's a very serious and cautious killer, they will be very careful. Because they are not catharsis, but thinking about hiding after killing someone, waiting for a while and even living a normal life. ”

"So what Team Zhuo and Team Jin mean is that the murderer will next find someone with a name in his name. Because he will be conservative! ”

"Almost!" Zhuo Lefeng's expression was serious, "Before, we thought it was a surname with chess characters, but now that we look at it, the murderer is targeting the entire name." There are fewer people with the surname of Xiang, but there are more people with the word Xiangzi in the whole name. ”

A policeman spread his hands: "So there is no way to remind the protection one by one!" ”

"Because we can't protect one by one, we can't sit and wait, we have to take the initiative. The other party must be looking for a person with a face in his name, and he must contact this person in advance. If it wasn't the crime on the spot, then ......"

Several people blurted out, "The person with the appearance in the name may have disappeared!" ”

Zhou Shushan slapped the table: "Immediately collect information on missing and missing people from yesterday through various means, and pay special attention to those with photos in their names." In addition, hurry up and investigate the contact points of the four people who have died so far, and find out who these four people were in contact with before they died, and who is their contact intersection. In addition, the murderer's modus operandi is special, which means that he is rigorous and inconspicuous, but it is difficult for a man who is close to 1.9 meters tall and wears a cap and sunglasses not to attract attention. ”

Knock knock, someone hurriedly walked in from outside. After whispering a few words in front of Zhou Shushan, the corners of Captain Zhou's mouth moved.

"It seems that I am really right. It's hard for this guy to keep a low profile. Zhuo Lefeng detained Wang Junwei before, and this guy really helped. We showed him the footage, and he recognized the blurry figure. ”