Su Cheng asked rhetorically: "We, we are very different from me, and when we talk about me, it is a very confident statement." When we are spoken, we are empty-hearted. My biggest mistake is ignoring that you are a surgeon and a good surgeon. I was thinking, a surgeon can kill someone, lurk, sneak attack, kill with a single sword, but why does he use a boning knife? Does a surgeon use a boning knife to operate on a patient?"

Su Cheng said: "Absolutely impossible, the surgeon is best at scalpels." How could a surgeon who was planning to kill someone, who had the determination to carry a knife, who must have a knife? ”

Su Cheng said: "I am very willful, I think the murder weapon is a scalpel, not a boning knife." Why are you suspicious? Only the neighbors can mix in the neighbor group, investigate all the neighbors, only you have the ability to kill with one blow, and the others are not even sure if the heart is in the middle or to the left. The question is, since it was a person killed with a scalpel, how could a boning knife have blood stains? How did it become a murder weapon?"

Su Cheng said: "I went to get a haircut last month, and I was a novice, and he accidentally cut a part of my hair too short, so he quickly made an excuse and asked the master to help him clean up the aftermath." If the hair is too long, the master can cut it short, but if the hair is too short, what should I do? Can I pick it up? No, that's impossible. The master was very experienced, and he used my short hair as a reference and cut all my hair short, and when I looked at it as a whole, I really couldn't tell that it had been cut. ”

Su Cheng: "Let's get straight to the point, you lurk in Zhang San's bedroom, but I didn't expect Zhang San to be alone." What should I do? Zhang San will find you sooner or later when he enters the bedroom. You had no way out, so you stabbed Zhang San with a scalpel according to the plan. Next, you have a few minutes to think. Then, Hua Feiyu was frightened, we calculated, Hua Feiyu went out to the neighbors to see the living room, it took seventeen seconds, we practiced on the spot, it didn't take so long, it only took ten seconds. ”

"Hua Feiyu went out, you immediately went to the kitchen, took the boning knife to the bedroom, inserted the knife into the wound opened by the scalpel, then pulled out the knife, put the knife back in the kitchen, dodged aside, and waited for the neighbor's attention in the bedroom when you took the opportunity to blend in. Su Cheng said: "You successfully created a murder scene in the closed room. ”

Su Cheng asked Li Si not to speak: "I know you want evidence...... It's very difficult, the boning knife is longer and wider than the scalpel, you are skillful, you stab it according to the knife edge, completely destroy the wound, and the medical examiner told us that it is difficult to prove that the murder weapon is a scalpel. And you've got the knowledge, you have bleach at home, and bleach can damage DNA. Clothes, murder weapons, everything was washed clean by you. As a premeditated and detective enthusiast, you prepare head coverings, gloves, shoe covers, which are essential supplies in the operating room. No fingerprints, no hair, no shoe prints...... So when did you take these things off?"

Su Cheng: "It must be that Hua Feiyu has to start preparing before he is frightened, because you don't know how much time there will be next, you have to take some things off first, after Hua Feiyu is frightened, you go to the kitchen and set up the crime scene." ”

Li Si was shocked.

Su Cheng smiled: "I think you guessed, you don't know when Hua Feiyu knocked on the door and when he came in, so he took off the hair cover first and hid behind the door, at this time the window of the room was closed, and it was still a little stuffy in the room in December, and you leaned against the wall." Luckily for you, there was no hair on the spot. Unfortunately, your dandruff along with sweat sticks some on the white plaster walls. You are a doctor, you should know that hair may not be able to detect DNA, but dandruff can detect DNA, this is the report of the physical evidence team on you as a witness to enter the scene, DNA to identify the murderer's fingerprints and DNA, through the efforts of the physical evidence team, it is confirmed that the dandruff DNA and your DNA are completely consistent. ”

Li Sihao replied after a while: "Okay, I admit that I entered Zhang San's bedroom, and it was sneaking, but it was not the time of the crime." ”

"Oh?"

Li Si was indignant and said: "Zhang San, that bastard, attacked my wife and took nude photos to threaten. Although it has been two months, although the background has been dealt with, but my wife is a serious person, she clearly remembers that during the day, the toilet was clogged, and she went out on the stairs to find a phone to dredge the pipe, Zhang San asked and said that he could handle it. I didn't expect this beast to come to my house to unclog the toilet, dare to drug my wife, and take pictures. I sneaked into Zhang San's house to investigate this matter and get back the USB flash drive with my wife's photo. ”

"We've got the motive for the killing, but it's not bad for you to say it yourself. Your excuse feels pretty good. You're going to steal back the USB flash drive before sneaking into Zhang San's house, right?"

"Yes. ”

"Then why can't I find your fingerprints everywhere?"

"Because I knew it was illegal to steal, I wore a hood, a foot cover, and a shoe cover. ”

Su Cheng said: "There is no table in the third bedroom, only the wardrobe has two drawers, as a scheming thief, I want to ask, are the two drawers of the wardrobe locked?"

Li Si was stunned: "It doesn't seem to be." ”

"What's in there?"

Li Si suddenly came back to his senses: "I don't need to answer this question, you have to prove my guilt, not me to prove my innocence." ”

This is okay for the police, but not for the judges. This is the motive for committing the crime, the judge will ask you to answer, how do you answer?" Su Cheng said: "Another point, did you sneak into Zhang San's house on the day of the crime?"

Li Si thought wildly, and after a long time, he nodded: "It's more than four o'clock, I'll get off work at half past three, and when I get home at four o'clock, I will go directly to Zhang San's house, and leave around four twenty." ”

"Are you sure?"

Li Si covered his mouth and rubbed back and forth, thinking......

Su Cheng said: "You have no way out, Zhang San was unwell the day before the crime, and he stayed at home for a day." Compare the time you go to work and Zhang San is at home, in these seven days, only you have time on the day of the crime. You only have time after four o'clock, and Hua Feiyu enters the door at four o'clock. ”

Li Si replied: "I left at 4:20, I'm sure." ”

Su Cheng asked, "On the day of the crime?"

"Yes, on the day of the crime. ”

Su Cheng said: "Do you know? Hua Feiyu arrived at Zhang San's door at ten o'clock at four o'clock, waiting for Zhang San to go home. ”

Li Si hurriedly said: "I remembered wrong, it should be between 3:55 and 4:5." ”

Su Cheng didn't bother to pay attention to him, snapped his fingers, and Zuo Luo pushed out a photo: "You are entering your own building at four o'clock, this is a photo taken by outdoor surveillance." Go upstairs, before entering Zhang San's house, you have to wear gloves and take the key to open the door. After entering, you have to put on a head cover and shoe cover. And rummaging through things, do you think the judge will think five minutes is enough?"

Su Cheng added: "If you want to make a fuss about time, just save it, we have already passed the monitoring time, we even have monitoring security testimony, and no one has debugged the monitoring time in the past month." Huafeiyu's mobile phones and watches have all been timed. The most terrible thing is that you don't get off work alone at four o'clock, a neighbor arrived home at ten o'clock at four o'clock, saw Hua Feiyu at the door of Zhang San's house, and talked to each other. You can argue again, in the past two days, our seven groups have sorted out all the information that can be organized, and we even know that Zhang San's return home at 4:40 is the time you controlled by deception, and it is also the reason why Zhang San rushed back to see Hua Feiyu, because Zhang San was deceived by you...... Come, what else, just let the horses come. ”

Speaking of this, Li Si finally sighed helplessly......

The motive is as Li Si said, Li Si's wife confronted Zhang San, Zhang San refused to admit it, and the police came to investigate, but it took too long and there was a lack of evidence.

Most of the crime process was the same as what Su Cheng said, Li Si was very nervous at the time, and he had thought about using a boning knife to cover the scalpel a long time ago. It was impossible to use a scalpel, because he was the first to be suspected. He paid great attention to the details to avoid blood splashing on his body, and all the items such as gloves were disinfected and destroyed with bleach, leaving no hard evidence. The only thing is that the hood is too urgent, and Zhang San regrets it very much, and he should take off the hood after going to the kitchen.

He didn't think that taking off the hood was the right way to buy time when he didn't know the length of time. It's just that he failed at this point, and he regretted it.

Su Cheng: "Everyone who premeditates a crime thinks very carefully and clearly, but it is not so simple when committing a crime on the spot. Luckily, it's really hard to check. Bad luck and flaws. You may not know that for such premeditated crimes, it is relatively easy for the police to find suspects, and premeditated crimes are mostly acquaintances. And you and your wife once went to the police station because of this incident, there are relevant records, and it is only a matter of time before you are found. At present, one of the more difficult to solve the premeditated murder is the ......"

Zuo Luo slapped Su Cheng's mouth, damn it, he talked nonsense.

Su Cheng smiled, stood up and nodded to the special police, and the special police stepped forward and asked Li Si to follow them.

The door was closed, the video was closed, and Su Cheng said: "The exchange of killings is also to take advantage of the misunderstanding of the police." Nine times out of ten, the premeditated murder is related to acquaintances, but the suspect has nothing to do with acquaintances, and there is no scene of murder of passion......"

"Okay, I'll be nice to you in the future, don't kill me, okay?" Zuo Luo said: "What do you think about Zhou Duan?"

Su Cheng said: "I plan to ask Zhou Duan directly. ”

"Are you kidding?" said Zoro, "We can only investigate this case secretly." ”

"No, my standard for filing this case is to treat the horse bureau as a suspect, as the only target, the only suspect. I have to figure out why Zhou Duan was involved, and the best thing to do is to ask Zhou Duan. If Zhou Duan is a bad person, I won't check it. ”

Zuo Luo Zhengse said: "I don't agree, I think we have to start a full investigation of Zhou Xuan, now the showdown is too stupid." ”

Su Cheng said: "I'm going to bet on this, I think I have a high chance of winning." ”

"In case Zhou Zhou is a bad guy, are we going to startle the snake?"

"You have to believe that fat people are mostly not bad people. "Like shrimp!

"Damn. ”

"Anti-groove. ”

"You are not allowed to mess around until I agree. ”

"You won't agree with me to make such a bet to solve the case. ”

Zuo Luo stabilized his emotions and said, "Be sensible, the recently dug up Shangguan Wu's illness is also related to Zhou Duan, can't this deepen Zhou Duan's suspicion?"

Su Cheng said: "Zuo Luo, I'll be honest with you, if the opponent is Zhou Xuan, even if I startle the snake, I can turn the tide." If the opponent is a horse game, I am not sure at all. What ability does Zhou Duan have, and what ability does the horse bureau have? You should know best, Zhou Duan has only one ability, his ability to deduce, his ability to deduce, his ability to investigate, and his ability to fight are very average. Does this convince you?"

Zoro thought for a moment and replied, "No...... But if you insist, give it a try. ”

"Dead ducks have hard beaks. ”

"I'm too lazy to pay attention to you. ”

Su Cheng is not afraid that Zhou Duan is a bad person, because Su Cheng thinks that Zhou Duan is not an opponent and is not to be afraid. This kind of logic Zuo Luo usually doesn't accept, but it makes sense not to deny it, Su Cheng insisted on it again, and Zuo Luo finally gave in.

......

Zhou Duan is a strange thing in the criminal police, especially in the Z department. Zhou Duan spends most of his time working from 9 to 5, and the specific work is in charge of the six deputy captains of a group, and Zhou Duan's job is to assign the case to six teams, and then make tea and other results.

It sounds shameless, but four of the six deputy captains here were selected and promoted by Zhou Duan, and the other two were also talents from their own unit promoted by Zhou Duan's insight. Zhou Duan's criminal investigation business is sparse, and if there are no cases involving inter-departmental cases, or important cases where the director is in charge, Zhou Duan's commute to work is very punctual.

Everyone joked that the internal staff did not commute to work on time so much, and it was too much that he was an external officer, so he could not come to work in a grand manner, be late and leave early. Many people have opinions on this, but excluding a group of people, people can promote six deputies who stand alone, can you?

Employing people is a university question, and some people like loyal people, regardless of their ability. Someone likes mediocre people to protect their position. According to the current trend and trend, taking Journey to the West as an example, Sun Wukong, the boss loves and hates, he is a mischievousman, and he is also a meritorious person, this kind of person must be used, but he has to wear a tight spell. Zhu Bajie is a representative of the white-collar class, can be sycophants, has some ability, but will not be high-level, always stands with his boss, the boss opposes Sun Wukong, he supports, the boss supports Sun Wukong, and he also supports it. The worst is Monk Sha, who works to the death, works hard, but has poor ability, is not good at communicating, and does not know how to look at his face.

Zhou Duan used six Monkey Kings, first of all, he had to identify the Monkey King, and then give them rights, and at the same time, he had to restrain and regulate them, only do things, and not make trouble. At this point, last week did a pretty good job.

Zhou Duan got off work with peace of mind today, Zhou Duan drove, drove halfway, and the car behind him flashed double, and Zhou Duan knew that he was being followed. Although he had honed in the criminal police team before, after becoming a manager, his skills were basically lost. Zhou Duan looked in the rearview mirror and knew that it was Zoro's car, so he slowed down. Zuo Luo overtook and led the way in front, the two cars turned east and west, reached the vicinity of the South District Government, then turned half a mile road, got off the road, and drove to the parking lot on the second floor of the basement of a commercial plaza.

The business of this commercial plaza is average, the first basement floor is now enough for parking, and there are only two cars on the second floor, and there are no ghosts to see left and right. There is a good thing about talking in this place, it is clear at a glance and difficult for others to approach.

The three of them got out of the car, Zuo Luo first lit a cigarette for Zhou Duan, Zhou Duan spat out the smoke ring, and asked, "What's the situation?"

Zuo Luo looked at Su Cheng: "Get straight to the point, solve it quickly, what do you want to ask and hurry up." ”