"Liu Yun had sex-behavior before she died?" Xu Lang raised his head and looked at Ye Xuefei in surprise.

Ye Xuefei seemed to know why Xu Lang was so surprised, she nodded and said, "When I was dissecting the corpse, I found it by accident." ”

"Did you get any semen?" Xu Lang asked.

Ye Xuefei shook her head and said, "No, safety measures should be taken." ”

Hearing Ye Xuefei say this, Xu Lang turned his head to look at Li Lei, Li Lei was the one who investigated the scene, he conducted a careful investigation of the murder scene, if it was between Liu Yun and Tan Shihao who lived as husband and wife, they should have found the used avoidance-pregnancy-condom in their bedroom.

Li Lei saw Xu Lang looking at him, he had a puzzled expression on his face, shook his head, and said, "When we were investigating Tan Shihao's bedroom, we didn't find a pregnancy-avoidance condom in the trash can. ”

"What about the bathroom?"

Li Lei shook his head and said, "No." ”

Xu Lang thought for a while and asked again, "What about the trash can in the kitchen?" ”

"Not either."

"The deceased Liu Yun did not wear underwear, and in addition, she had sex not during her lifetime, but after her death." Ye Xuefei added at this time.

"After death? Rape-corpse? Xu Lang's originally frowning brows tightened a little again.

Ye Xuefei nodded, "Yes, it is true that the sexual relationship happened after Liu Yun's death, but"

"But what?" Xu Lang asked.

"However, according to the examination of the body of the deceased Liu Yun, we found that the person who had sex with Liu Yun should not have lasted too long during this period."

"Premature ejaculation?"

"Well, there's a possibility." Ye Xuefei did not immediately agree with Xu Lang's statement.

Xu Lang didn't ask anything more, but began to ponder, he felt that this case was getting stranger and stranger, and he couldn't find a motive for the killing.

If it is a vendetta, then the murderer can directly kill Tan Boheng's family, but judging from the way the five victims died, it is not very much like a vendetta, but like an acquaintance committing a crime.

If it is a love killing, then, the murderer only needs to kill the people who are related to him, there is no need to kill so many people, including a seven-year-old child, from now on, the murderer should have a great grudge with the deceased Liu Yun, but what kind of grievances and hatreds caused the other party to poison the other party next time? Hatred? So what kind of hatred is it, what kind of hatred? If it's for love, then what kind of emotion is it? Is it really like those unscrupulous media and evil keyboard warriors speculated, Liu Yun really had an affair and had an improper relationship with a man? If this is really the case, then why did the murderer kill Liu Yun's family of five again?

Xu Lang couldn't figure out why the murderer did this, couldn't find the motive for the killing, or couldn't figure out what the murderer's motive was.

Since he couldn't figure it out for the time being, he didn't think about it, Xu Lang came back to his senses, looked at Ye Xuefei and asked, "Besides, what else have you found?" ”

Ye Xuefei thought about it, shook her head, and said, "Not for the time being." ”

Xu Langgang wanted to nod, but then, thinking of something, he raised his head and looked at Ning Yanran and said, "Ask Tan Wenrui to come to the Public Security Bureau." ”

Ning Yanran looked at Xu Lang inexplicably, she thought that Xu Lang was still suspicious of Tan Wenrui, so she looked at Xu Lang with a frown and said, "What did you ask Tan Wenrui to do at the Public Security Bureau?" Do you still suspect that he is a murderer? ”

Xu Lang shook his head, in the past two days, the police have been to Tan Wenrui's school, and found the people who Tan Wenrui said to Xu Lang in the second criminal investigation team at the time, after the police found them and questioned them, they told the police that Tan Wenrui had indeed not gone home for two weeks, and on the day of the 113 case, they saw Tan Wenrui at school, Tan Wenrui had a perfect alibi, he had cleared the suspicion, and what Xu Lang wanted to do was not to change clothes Tan Wenrui was a murderer, but to do something else.

Xu Lang didn't look at Ning Yanran, but looked at Ye Xuefei and said, "After Tan Wenrui arrives at the Public Security Bureau, I will do a paternity test for him and Tan Shihao." ”

"Huh?!"

Hearing Xu Lang say this, everyone present opened their mouths wide and looked at Xu Lang incredulously, some of them were not Xu Lang's brain circuits, and they didn't understand why Xu Lang did this.

Xu Lang didn't explain anything, just smiled, and then he looked at He Liangping and asked, "How is the investigation of the Fenghua community?" ”

Seeing Xu Lang looking at him, He Liangping immediately stood up and said, "After more than two days, we have basically finished our visit. ”

"What is the result? Did you notice anything out of the ordinary? ”

He Liangping shook his head and said with some discouragement: "No, after a long visit, I didn't find anything suspicious." ”

"On the day of the crime, no one saw any suspicious people entering and leaving the community?" Xu Lang asked.

"No, it was a weekend, and I finally had a holiday, many people like to sleep lazily, and they didn't care too much about the situation around them, besides, Fenghua Community is an old community, most of the people who live in it are teachers, all intellectuals, and they all bow their heads to each other and don't look up to see each other, everyone is very familiar with each other, if there are suspicious people in and out of the community, it will definitely attract people's attention." He Liangping explained.

Xu Lang pondered for a moment, and suddenly asked, "What is the evaluation of the residents of Fenghua Community on Tan Boheng's family?" ”

He Liangping was stunned for a moment, then thought for a while and said, "It's okay." ”

"Okay, right? What does it mean to be OK? Xu Lang asked with a frown.

"Well, how to say it, Fenghua Community used to be the school district house of S University, which was assigned to the teachers of S University to live, and the teachers who lived in the community were basically teachers, but, as time went by, many teachers who originally lived here were either transferred away, or did not continue to live there for various reasons, so there were some outsiders who began to live in, after all, although the houses in Fenghua Community are old, but the housing prices are still very cheap, and the new people who moved in, in fact, Many people don't know Tan Boheng's family, they can only occasionally see their family in the community, and they know that Tan Boheng's family is just a teacher, and there is nothing else to do with each other."

Only where there are people there are rivers and lakes, there is competition and grievances, Rao is like Tan Boheng is no exception to the academic people, the position of the teacher is still very scarce, the competition is large, the pressure is also great, the teacher's personal ability is very important, before, there is a school district room, as long as the teacher has a good work performance, you can get a house, of course, in addition to personal ability and teaching level, you have to take into account other factors, S University is a university, and it is also a famous university, the teacher team is already large, However, there are so many houses, some people can get a house, and naturally some people can't get a house, and Tan Boheng is the first batch to get a house, in addition to Tan Boheng's outstanding personal ability and excellent teaching level, he has a great breakthrough in academic research, and talents like him, the leaders of the school will naturally take him into account first.

The people who are assigned the house are naturally happy, and those who are not assigned to the house are naturally unhappy, so even if Tan Boheng is kind in school, there are still people who look at him unpleasantly, after all, teachers are also people, as long as they are people, they have seven emotions and six desires, and there will always be emotions, so not all teachers like Tan Boheng, some of them think that Tan Boheng is too dazzling, and he has taken any honor alone, and the rest of the people can only watch, Some people think that Tan Boheng's academic research is a bunch of bullshit, and some people think that Tan Boheng can get a house not because he is the vice principal and uses the power in his hands to specialize.

These voices have begun to circulate when the school has just divided the house, but later, with the reform of education, the school no longer divides the house, so those voices slowly disappeared, and as time went by, Tan Boheng also got old, and when he reached the age of retirement, he recommended going home to support the elderly and concentrate on academic research.

According to people who are familiar with Tan Boheng, although Tan Boheng is the vice president of S University, a university professor, and has won countless honors, many people feel that Tan Boheng is actually a very old-fashioned and stubborn person, as long as he believes in something, no matter who persuades him, it will be useless, whether it is in school or in his own home.

When He Liangping investigated and visited, he learned from the mouths of people of Tan Boheng's generation that Tan Boheng's son Tan Shihao, when he was in high school before, actually didn't want to be a teacher, but wanted to be a doctor, but, under Tan Boheng's strong opposition, he had to choose the path of being a teacher.

In addition to this, there is one more thing.

When Tan Shihao was in college, he once talked about a girlfriend, but the girl's family composition was not good, in a word, it was not the right door, at that time, it was actually a very rare thing to fall in love in college, compared, people at that time were still more traditional, when Tan Boheng knew about it, he was very resolute against it, and it was rumored that Tan Boheng had personally found the girl, I don't know what I said to the girl, not long, The girl took the initiative to break up with Tan Shihao, and since then, the two have never been in contact with each other.

Tan Shihao had many quarrels with Tan Boheng because of this incident, but the fact has come true, no matter how Tan Shihao quarrels with Tan Boheng, it will be useless, and in the end, Tan Shihao once again chose to compromise.

As for Tan Shihao's wife Liu Yun, Liu Yun's father used to be old classmates and old comrades-in-arms with Tan Boheng, but unfortunately, when Liu Yun was in college, her father died of illness, and Liu Yun's mother died a long time ago, it was Tan Boheng who was responsible for taking care of Liu Yun after finishing college, after Liu Yun graduated from university, under Tan Boheng's matchmaking, Tan Shihao and Liu Yun came together, married and formed a new family.

After hearing He Liangping tell him about his investigation and visit in the past two days, Xu Lang was silent for a long time before he slowly spoke: "In this way, Tan Boheng is a person with a strong desire to control, this is completely a word." ”

When everyone heard Xu Lang say this, they all nodded and agreed with Xu Lang's statement, however, Xu Lang They can also understand why Tan Boheng is like this, first, he is a person who engages in academic research, generally such people are more stubborn and old-fashioned, and even a little pedantic, second, he himself is a teacher, and his wife Fan Ziyao is also a teacher, he naturally hopes that his son is also a teacher, and under Tan Boheng's intervention, Tan Shihao chose to compromise and became a teacher, although he is only a high school teacher, but, A teacher is a teacher, not only his son Tan Shihao has become a teacher, but his daughter-in-law Liu Yun is also a teacher, which is a good thing for the Tan family, at least in the eyes of outsiders, the Tan family is a teacher, this is an invisible glory, just like in ancient times, everyone in the family was an official, this is an invisible glory.

However, after listening to He Liangping's story, Xu Lang still didn't understand why Tan Boheng's family was wiped out.

If people who also live in the community have opinions and grievances against Tan Boheng, it is only because of academic differences, at most they were dissatisfied when they divided the house, but these decades have passed, Tan Boheng has already retired, and the school has long since ceased to divide the house, these dissatisfaction and resentment have long been gone.

Thinking of this, Xu Lang remembered that He Liangping mentioned that Tan Shihao had talked about a girlfriend when he was in college before, so Xu Lang asked: "What is the name of Tan Shihao's girlfriend when he was in college?" ”

"Zheng Limei." He Liangping said.

"Do you know where she is now?" Xu Lang asked.

"Not in S City."

"Where's that?"

"It's still under investigation."

"Hurry up and find this Zheng Limei."

"Brother Lang, do you suspect that Tan Shihao's first love is a murderer?" He Liangping looked at Xu Lang in some surprise.

Xu Lang neither nodded nor shook his head, he thought for a while and said, "Find her first." ”

He Liangping was a little disdainful of Xu Lang's statement, he felt that Xu Lang's guess must be wrong, Tan Shihao is forty-five years old this year, he and Zheng Limei fell in love when they were in college, and now more than 20 years have passed, Tan Shihao is the father of two children, Tan Wenrui is now nineteen years old, and they are all in college, it is estimated that Zheng Limei has already married and had children, is the child, is it just for a relationship of more than 20 years, he committed a tragedy, this is too much to say, too incredible, What's more, it was a man who killed Tan Boheng's family, and Zheng Limei was a woman, a woman may be able to kill people and poison them, but how can she do such a thing as rape as a woman? This is the main reason why He Liangping denied Xu Lang's opinion from the bottom of his heart.

In fact, not only He Liangping thinks so, but many people who came in at the same time as He Liangping think so, they all think that this guess is too unrealistic, but, after all, they are still newcomers, for the views given by an old criminal policeman like Xu Lang, although they have different opinions in their hearts, they don't say anything, and Xu Lang doesn't explain anything, because he understands one thing better than anyone else, the power of hatred is very powerful, sometimes, a murder happens, the cause is a little bit that looks very inconspicuous, It is not uncommon for people to be caused by small things that people usually don't notice, and some criminals can kill people decades later because of hatred.

Judging from the 113 case, the murderer's modus operandi can be said to be very professional and skilled, or very bold, this must be a well-planned murder case, but Xu Lang can't figure it out for the time being.

Xu Lang didn't care what He Liangping thought in their hearts, but looked at Li Lei and asked, "What are the results of the on-site investigation?" Did you find any new clues? ”

"Tan Wenrui returned to his home and inspected the scene, and he found that a trophy was missing from Tan Boheng's study." Li Lei said.

"Trophies? What trophies? Xu Lang suddenly asked with interest.

"It was the first trophy that Tan Boheng won when he was in S University, and it was the trophy of the mathematics competition."

"Trophies for math competitions? It's another math competition. Xu Lang frowned, muttering to himself.

"Brother Lang, what did you say?" Li Lei looked at Xu Lang suspiciously.

Xu Lang came back to his senses, shook his head, and said, "Oh, it's nothing, what else is missing besides losing a trophy?" ”

Li Lei shook his head slightly and said: "I haven't lost anything else, the household registration book, real estate certificate, passbook, bank card, expensive jewelry and other things at home are all there, and none of these things have been lost." ”

"Then it doesn't seem to be for money." Xu Lang said.

Li Lei nodded, he also thought so.

"Did fingerprints and shoe prints be collected at the scene?" Xu Lang asked.

"Except for a mutilated bloody handprint found on the murder weapon on the body of the deceased Fan Ziyao, no other fingerprints were found at the scene, and the murderer should have been wearing gloves when committing the crime."

"What about shoe prints?"

"The shoe prints have been collected, but" Li Lei stopped talking a little.

"But what?"

"The shoe prints we collected are not someone else's, but Tan Wenrui's." Li Lei looked at Xu Lang and said helplessly.

"What? Is the shoe print Tan Wenrui's? Where do you collect the shoe prints? Xu Lang asked with some surprise.

"On the clothes of Liu Yun's corpse." Li Lei said.

"How is this possible?"

Hearing Li Lei say this, everyone at the scene was very surprised, and suddenly the sound of discussion sounded in this temporary conference room.

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