When we live in this world, no matter whether we live well or not, whether we are poor or rich, noble or vulgar, no one seems to care too much about the people around us, but when a person dies, we always believe in all ways to prove that he or she is still alive, at least all the traces he or she has left behind when he or she is alive, isn't it ironic?

Xu Lang pondered for a while and asked, "Have fingerprint samples been extracted from the bloody handprints found above the murder weapon?" ”

Ye Xuefei shook her head and said: "The bloody handprint is incomplete, and the deceased once held the handle of the knife with his hand before he died, covering the already mutilated fingerprints, so there is no way to extract them for the time being." ”

Xu Lang was a little disappointed in his heart, but he didn't show this expression, he looked at Li Lei and said, "After Tan Wenrui comes later, when you collect his DNA sample, you can collect his fingerprints and palm prints by the way." ”

Li Lei understood what Xu Lang wanted to do, he nodded and did not speak.

Today, Ning Yanran held this short case discussion meeting, mainly to determine the direction of the investigation, only to determine the direction of the investigation, the police will not be like a headless fly around, as far as today's various investigation clues are summarized, the 113 case should be a vendetta case caused by love, basically ruling out the two possibilities of burglary and murder for money, now, the main direction of the second criminal investigation team is still on the investigation of the interpersonal relationship of Tan Boheng's family, focusing on the investigation of the interpersonal relationship of the hostess Liu Yun, Let's see if we can open a breakthrough from her.

In addition, the interpersonal and social relationships of people like Tan Boheng, Fan Ziyao, Tan Shihao and others must be investigated one by one, and the schools where they work must visit and investigate to see if there are any new clues, in addition, we must also focus on investigating the emotional experience of Tan Shihao and Liu Yun, after all, there are not a few bloody cases caused by a love word, which are all things that require the second criminal investigation team to invest a lot of manpower and material resources to investigate.

After determining the direction of the investigation, Ning Yanran began to divide labor, Li Lei took Hu Anyun to Fan Ziyao's previous work unit to investigate and visit, Guo Jun and Zhu Xumei went to Tan Shihao's work unit to investigate, and Lao Kaige and He Liangping went to Liu Yun's work unit to investigate, Ning Yanran and Lu Xing went to Tan Boheng's previous work unit to investigate, Ye Xuefei also needed to do a paternity test on the bloody handprints found on the murder weapon, as well as Tan Wenrui and Tan Shihao, everyone has their own things to do, Only Xu Lang didn't seem to have anything to do.

After the task was arranged, everyone began to act.

After everyone started to act, Xu Lang thought about it and said to Ning Yanran: "I'll go to S University with you, and leave Lu Xing in the second criminal investigation team to take care of the house." ”

Ning Yanran thought about it and agreed to Xu Lang's approach, she let Lu Xing stay in the second criminal investigation team, while she and Xu Lang drove to S University.

S University is located on the outskirts of the western part of the city, not in the city center, basically many city universities are in the suburbs, and S University is no exception.

Today is Tuesday, the students are in class, when Ning Yanran drove the police car to the S gate, Xu Lang walked down from the car, looked at the gate of the S University, and looked a little trance-like, he studied at the police university, and did not study on the university campus like normal students, and when Xu Lang was studying at the police academy, he was only in school for more than a year, and the rest of the time was undercover work, so, compared to others, Xu Lang is still very envious of those children who study carefree in college.

Ning Yanran didn't feel this way, and her feeling about college was just like that, after all, everyone's experience was different, after Ning Yanran got out of the car, she saw Xu Lang standing at the door of the school in a daze, and couldn't help but ask curiously, "What do you think?" ”

Ning Yanran's words interrupted Xu Lang's thoughts, and after Xu Lang came back to his senses, he said: "I didn't think about anything, I just envy these children who are still able to study in school, kill time, and squander their youth wantonly." ”

Hearing Xu Lang's emotion, Ning Yanran looked at Xu Lang with a very strange look, and in the end, she couldn't help but speak: "If I'm not mistaken, you are only twenty-six this year, and you have entered the age of twenty-seven, you are not a few years older than these students in school, how to say that you seem to be forty or fifty years old." ”

Xu Lang was stunned for a moment, then shook his head with a wry smile, not thinking about these messy things.

The two of them came to the guard room, Ning Yanran was wearing a police uniform, and after she took out her documents, she explained her intention to the doorman.

The doorman was an old man in his sixties, he first asked Ning Yanran to register at the door, and then he called the principal's office and briefly told Ning Yanran about them.

After the phone call, the doorman let Ning Yanran and them in, and by the way, he also told Ning Yanran the location of their principal's office.

The life of the university is actually very simple, although it is class time now, Xu Lang and Ning Yanran are walking on the campus, and they can still see the students walking together in twos and threes, which is different from elementary school, junior high school and high school, college students do not require to wear school uniforms, even if the school requires them, no one wears school uniforms, after all, college students are in their twenties, they all have their own ideas, and they all want to be different, so these students Xu Lang saw were wearing all kinds of clothes.

Xu Lang and Ning Yanran walked in the campus, attracting the side eyes of many students, after all, Ning Yanran's police uniform was still very eye-catching, but these students only glanced at Ning Yanran and Xu Lang a few more times, and did not do the rest.

In this way, Xu Lang and Ning Yanran found the principal's office after asking a few students along the road.

The door of the principal's office was open, Ning Yanran knocked politely, and then heard a neutral man's voice ringing in the office.

"Please come in."

Xu Lang and Ning Yanran did not hesitate at all, and walked straight into the principal's office.

After entering the door, Xu Lang saw an old man with silver hair and reading glasses sitting behind the desk in the office, the old man looked to be about seventy years old, and he looked a little older than Tan Boheng.

When Xu Lang and Ning Yanran came in, the old man seemed to be reading some documents, and when Xu Lang and Ning Yanran walked to the desk, the old man raised his head, looked at Xu Lang and Ning Yanran, and then stood up and said with a warm smile: "Please take a seat." ”

After saying this, the old man walked to the side and made two cups of tea for Xu Lang and Ning Yanran, and after putting them in front of Xu Lang and them, he walked behind the desk and sat down, and then asked, "The two police officers are here for Professor Tan Boheng's business, right?" ”

Xu Lang didn't speak, he just looked at the old man silently, and when the old man went to make tea for them, he saw a name tag on the old man's desk, which said Principal Shi Jianhua.

Ning Yanran naturally saw this detail, she was the captain of the second criminal investigation team, naturally she was the one who came to answer Shi Jianhua's question, she nodded and said: "Excuse me Principal Shi, we are indeed here this time for the murder of Professor Tan Boheng's family, and I hope the school can cooperate with the investigation." ”

"We must cooperate, we must cooperate." Shi Jianhua said busily.

After saying this, Shi Jianhua sighed and said: "Hey, I have worked with Lao Tan for more than 20 years, and I am an old partner, but I didn't expect that others have retired, but they have suffered this catastrophe, which is unthinkable, it is really sad, this is the loss of our school, the loss of the education industry, and the loss of the academic community." ”

Xu Lang looked at this and said with emotion, while taking off his reading glasses, and wiping Shi Jianhua from the corners of his eyes with his wrinkled hand, Xu Lang's eyebrows were raised, his eyes subconsciously narrowed, and he just glanced at Shi Jianhua deeply and did not speak.

The same is true for Ning Yanran, she doesn't know how to comfort this seventy-year-old man, she chooses to be silent like Xu Lang.

Shi Jianhua said a few more words of emotion, then raised his head, looked at Ning Yanran and asked, "I don't know how the two police officers need our school to cooperate when they come this time?" ”

Just when Ning Yanran hesitated how to speak, Xu Lang finally spoke: "We want to see Professor Tan Boheng's information, don't you know if it's convenient?" ”

"Oh, look at the information." Shi Jianhua hesitated and looked at Xu Lang.

Xu Lang raised his eyebrows again, he looked at Shi Jianhua and asked, "Isn't it inconvenient?" ”

"Oh, that's not, since it's the police investigating the case, we should cooperate with the investigation, but I don't know what the two police officers want to see besides Lao Tan's information?"

Xu Lang raised his hand and touched his chin, and said, "There is also a list of students that Professor Tan Boheng has brought over the years, especially in recent years. ”

Shi Jianhua frowned and looked at Xu Lang with an embarrassed expression.

"What's wrong? Principal Shi, have you lost all these materials? Xu Lang asked.

"Oh, that's not it, this is Lao Tan has worked in S University for nearly forty years, if you count from the beginning of his entry into S University, Lao Tan has been in the school for forty-two years, and he has brought countless students, if you want to find all the lists, it is estimated that it will take a long time." Shi Jianhua explained.

Xu Lang nodded, since he made this request, he naturally knew that it would take time to check these materials, Xu Lang pondered for a moment, and said: "Then it's good to find out the list of the past five years, let's take a look, and in addition, we have to trouble President Shi to tell us about the old Professor Tan Boheng." ”

"No trouble, no trouble, two police officers wait a minute, I'll have someone sort out these materials and send them to the office later." Shi Jianhua said slowly.

Xu Lang nodded and didn't say anything.

After Shi Jianhua saw Xu Lang nodding, he picked up the phone on the table and dialed an internal phone, the phone was quickly connected, and he heard Shi Jianhua say: "Xiao Liu, you go to the archives to find out Lao Tan's personal information, as well as the list of students he has brought in the last five years, and send them to my office." ”

After making the call, Shi Jianhua put down the microphone, raised his head to look at Xu Lang and Ning Yanran and asked, "I don't know what the two police officers want to ask?" ”

Xu Lang said without thinking: "When did Professor Tan Boheng retire?" ”

Shi Jianhua said without thinking: "I retired in 05, at that time, Lao Tan's health was not very good, he had an illness, he had an operation, the operation was successful, and after the operation, Lao Tan retired, resigned from the position of vice president, but he still had the title of a professor, and occasionally, Lao Tan would return to the school to give lectures to students." ”

"Surgery? What surgery? Xu Lang asked curiously.

"Oh, cirrhosis." Shi Jianhua said.

"When did Professor Tan Boheng find out about this disease?"

"It was probably in the winter of '04."

"Oh, that's right." Xu Lang pondered for a moment, and then continued to ask, "What kind of person is Professor Tan Boheng?" ”

Hearing Xu Lang ask, Shi Jianhua thought about it seriously, showed a reminiscing expression on his face, and said slowly: "Old Tan, he is a very good teacher, he treats his work seriously, and he is also very patient in teaching students. ”

"How is he getting along with his colleagues?"

"We get along well, after all, we are teachers, our main job is to teach and educate people, in addition to academic research, we are all old colleagues who have worked together for many years, and we naturally get along well."

"Does Professor Tan Boheng have any hobbies? For example, smoking. Xu Lang asked.

"Lao Tan doesn't smoke, in the past, the conditions of the school were poor, the teacher's salary was low, and he couldn't afford to smoke, and most of the teachers in our S University didn't smoke, after all, we want to set a good example for the students, and Lao Tan doesn't have any bad habits, except for liking to drink, basically there are no other hobbies." Shi Jianhua said.

"Like to drink?"

Xu Lang frowned, he remembered that when Ye Xuefei conducted an autopsy on Tan Boheng's body, he did not find that the deceased's body contained alcohol, and when Xu Lang was investigating the murder scene, he did not find too much wine in Tan Boheng's house, so Xu Lang felt a little puzzled.

It seemed to see Xu Lang's doubts, Shi Jianhua explained: "Lao Tan when he was young, his family conditions were not very good, from the time he went to school, he liked to drink and read, this habit has been from him from a student to a teacher, the school life was hard before, the conditions were not good, the teachers' salaries were relatively low, and Lao Tan was a person who liked to engage in academic research, often stayed up late and worked overtime, it was all commonplace, he didn't smoke, and he didn't play cards, but he liked to drink a few sips of soju when doing research, to refresh himself." I have been a colleague with him for so many years, and his habits have not changed. ”

"It's just that he later got cirrhosis of the liver because of drinking, and in order to survive, he quit drinking."

After listening to Shi Jianhua's explanation, Xu Lang understood what was going on.

However, Tan Boheng's liking for drinking doesn't seem to have anything to do with the 113 case, so Xu Lang didn't ask anything more, but changed the topic and asked, "How is Professor Tan Boheng's character?" ”

"Character?" Shi Jianhua looked at Xu Lang with a puzzled expression, not understanding why Xu Lang asked so.

Xu Lang explained with a smile: "Oh, the recent murder of Professor Tan Boheng's family has been reported by various media, I saw some news on the Internet, saying that there are some improper relationships between Professor Tan Boheng and his students, I want to know, is this true?" ”

"Nonsense, complete nonsense."

Hearing Xu Lang say this, a look of anger suddenly appeared on Shi Jianhua's face, and he said sternly: "I understand Lao Tan, if he is a workaholic, for work, for academic research, regardless of his family, I believe this, but to say that he has an improper relationship with his students, this is absolutely impossible." ”

"Oh, why can't it be?" Xu Lang is like a very gossip media reporter at the moment.

Shi Jianhua glanced at Xu Lang deeply, and then said, "You should also know that Lao Tan is a child of Shihao, right?" ”

Xu Lang and Ning Yanran glanced at each other, then nodded, Xu Lang said, "We know this, what's wrong?" Is there anything hidden in this? ”

Shi Jianhua shook his head slightly, and said: "There is nothing hidden, in our era, early marriage and early pregnancy, it is normal to have a few children, after all, family planning was not implemented at that time, but Lao Tan is a person who puts all his energy into his work, after he got married, most of the time is not in the classroom, or in the laboratory to do research, the number of times he goes home is relatively small, during Xiao Fan's pregnancy, Lao Tan is still in school as usual, since Lao Tan has Shihao, Let Xiao Fan have a ligation operation, which is not a big deal now, but, in our time, it was still a big deal, you say, would such a person mess with his own students? ”

After listening to Shi Jianhua's explanation, Xu Lang nodded, but Xu Lang still asked without giving up: "Professor Tan Boheng is a workaholic, and he will not take the initiative to provoke female students, so will there be female students who will take the initiative to provoke Professor Tan Boheng?" ”

This time, Shi Jianhua did not immediately refute Xu Lang, saying no, but sighed and said: "Hey, why not, Lao Tan treats students very well, is very patient and responsible, and has a lot of knowledge, naturally there will be female students who like such teachers, there were many female students who secretly wrote love letters to Lao Tan, but Lao Tan didn't even read it, and threw it directly into the trash, and then, I found those female students, I don't know what to tell them, these female students never took the initiative to pester him again, this matter, Not only do I know, but many of the older teachers in our school know about it. ”

"Writing love letters, when did this happen?" Xu Lang asked.

Shi Jianhua thought for a while and said, "It's probably more than thirty years ago, after all, Lao Tan was still young at that time, and he was just a strong young man." ”

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