The next day, Xu Lang got up early and prepared breakfast for Xiao Yueyue.

Waking up early has become a habit for Xu Lang, when Xu Lang made breakfast and was about to go to Xiao Yueyue's room to call Xiao Yueyue, Xiao Yueyue's door opened by itself, Xiao Yueyue had already walked out neatly dressed and went straight to the bathroom to wash.

After the two of them ate a breakfast that seemed simple but very nutritious, Xu Lang took Xiao Yueyue to the experimental primary school on foot.

After Xu Lang sent Xiao Yueyue to the door, he didn't go in, but watched Xiao Yueyue follow the other children into the school, during this period, Xu Lang saw a chubby little fat man, after seeing Xiao Yueyue, he immediately broke away from his mother's hands and ran towards Xiao Yueyue quickly, as if he was talking to Xiao Yueyue, but Xiao Yueyue was still a little cold, indifferent to the words of the little fat man, and Xu Lang also clearly felt that Xiao Yueyue subconsciously frowned.

This frowning action was learned by Xiao Yueyue from Xu Lang, because Xu Lang will make this action when he encounters a difficult problem, or when he meets someone he doesn't want to see, and Xiao Yueyue also learned it well, maybe Xiao Yueyue herself didn't notice it, but Xu Lang found out, he knew that even if he told Xiao Yueyue so much last night, Xiao Yueyue still didn't like the children around her who were the same age as her, and Xu Lang could only guide her slowly, and it was impossible to achieve it overnight.

Thinking of this, Xu Lang shook his head helplessly, and after the students entered the school and the school gate was closed, Xu Lang turned around and left, walking in the direction of the Public Security Bureau.

Perhaps because of his previous habits, Xu Lang still came to the second criminal investigation team.

When Xu Lang came to the second criminal investigation team, he found that the members of the second criminal investigation team were very tired, their eyes were bloodshot, obviously they hadn't slept all night, and staying up late to work overtime was like eating and drinking water for the criminal police, it was a very common thing, Xu Lang didn't say anything, and went straight to Du Ziqiao's office.

At this moment, Du Ziqiao is sitting behind the desk, supporting his head with one hand and holding a pen in the other, writing and drawing on the documents on the table, I don't know what he is writing, on the side of the table, there is a teacup, and there are two-thirds of the tea leaves in the transparent teacup.

Hearing the sound of the door opening, Du Ziqiao subconsciously raised his head, looked at the door, and after finding that it was Xu Lang, he lowered his head again and said casually: "Sit casually." ”

After Xu Lang walked to Du Ziqiao and sat down, he looked at Du Ziqiao and asked, "What?" Overtime? ”

"Yes, Jiangling died on the street, and the murder on the train was also transferred to our second criminal investigation team, this is the information sent by the Chengdong Criminal Investigation Detachment, you can take a look." Du Ziqiao said helplessly.

Xu Lang took the document that Du Ziqiao pushed in front of him and flipped through it.

There is a lot of information, some of which are the police's questioning and investigation of the staff on the train, as well as some photos of the scene of the murder box, and some are photos of the bodies of Zhang Kaiji and Zhang Huazhi, and their autopsy reports, in addition, there are also data files about Zhang Kaiji, Zhang Huazhi and Zhang Haonan passed by the Qiyang City police, and photos of Zhang Haonan's murder scene.

Xu Lang read it quickly, and it didn't take long for Xu Lang to finish reading it, because some of it was something that Xu Lang knew before, and some of it was something that Xu Lang didn't know, and Xu Lang focused on those things he didn't know.

Zhang Kaiji, male, forty-two years old, is a native of S City, works in an IT company, is a middle-level leader of this company, is a veritable white-collar worker, has no criminal record, whether it is in the company, or his friends, the evaluation of him is very good, it's just that he has a somewhat withdrawn personality, always likes to keep a straight face, giving people a feeling that no one should enter, however, people who know him say that Zhang Kaiji is actually a cold-faced and hot-hearted person.

Zhang Huazhi, female, Chinese New Year's Eve, from Qiyang City, she is also an employee of this IT company, she looks average, but she is very good, very cheerful, and can talk to anyone.

The two got married ten years ago, when Zhang Kaiji was still an ordinary employee, and Zhang Huazhi was a newcomer who had only come to S City to work for a long time, they had known each other for less than half a year, and the two registered their marriage.

Zhang Kaiji grew up in a single-parent family and was raised by his father, and Zhang Kaiji's mother did not die, but not long after giving birth to Zhang Kaiji, he ran away with a rich man, this walk is many years, and Zhang Kaiji has never been contacted since then, and Zhang Kaiji's father used to work in a factory, and later, on the way to get off work again, he died in a car accident, and the driver ran away directly, and Zhang Kaiji had just started working at that time.

Because the monitoring system at that time was not so popular, in addition, Zhang Kaiji's father was on the night shift at that time, and it was early in the morning when he got off work, and there was a car accident on the way to get off work, and there were not many people on the road at that time.

Zhang Huazhi was born in a rural area in Qiyang City, graduated from high school, her academic performance was actually very good, but, because his younger brother also had to go to school, the family was relatively poor, Zhang Huazhi was admitted to college, did not go to college, but entered the society and began to work to make money, all the way from Qiyang City to S City to work, Zhang Huazhi is very diligent, working during the day, studying night school at night, and finally went to adult college, and finally went to work in Zhang Kaiji's IT company, and it was also at that time that she met Zhang Kaiji, after, and the two got married.

Zhang Haonan is Zhang Huazhi's younger brother, three years younger than her, now Chinese New Year's Eve is fifty-five years old, Zhang Haonan is a college graduate, although it is not a famous university, but he also went to college, however, Zhang Haonan and his sister, he is much inferior, except for when his sister got married, he came to S City, Zhang Haonan basically stayed in Qiyang City, he worked in a small company in Qiyang City, the salary is not high, but there is no problem to support himself.

Zhang Haonan's father died of illness in the second year of Zhang Haonan's high school admission, and his tuition problem was mainly completed by relying on his sister and mother, five years ago, Zhang Haonan's mother also died of uterine cancer, Zhang Haonan's family, there are only two people left, Zhang Haonan and Zhang Huazhi.

Although Zhang Haonan is thirty-five years old, he has not been married so far, and he has talked about a few girlfriends before, but they broke up after getting along for a period of time, the reason is not because of anything else, or because Zhang Haonan has a tendency to domestic violence, and he is almost involved in smoking, drinking, playing cards and gambling, as for whether there is a habit of prostitution, I don't know for the time being.

According to the investigation, Zhang Huazhi worried a lot about this younger brother, and also introduced many girls to Zhang Haonan, but because of domestic violence, no girl was willing to be with Zhang Haonan.

Compared with Zhang Kaiji and Zhang Huazhi's wide acclaim, Zhang Haonan's reputation in Qiyang City is not very good, although he also goes to work, but he belongs to the kind of person who goes to work at the point, gets off work at the point, never works overtime, and is the kind of monk who hits the clock for a day, the company's leaders are not very fond of Zhang Haonan, and the evaluation of Zhang Haonan by colleagues is not too good, they all say that this person has a lot of bad problems, and he has disputes with people at every turn, and even fights, therefore, colleagues are not very willing to interact with Zhang Haonan.

It can be said that Zhang Haonan is a person who has no friends, and the only thing who cares about him is probably his sister who married into S City.

I don't know why, Zhang Kaiji and Zhang Huazhi have been married for ten years, but they have never had children, according to Zhang Kaiji's colleagues, it may be that Zhang Kaiji does not want children because of the events of the year, or it may be that Zhang Huazhi or Zhang Kaiji has a physical problem, or a child, some people say that Zhang Kaiji raised a junior outside, and some people say that Zhang Huazhi has an affair with a leader of the company, and Zhang Kaiji can become the middle leader of the company, not by his business ability, but by Zhang Huazhi selling his body in exchange, in short, Say anything.

According to their accounts, Zhang Kaiji and Zhang Huazhi had a good relationship in the first few years of their marriage, but in the past two years, the two people always quarreled from time to time, according to the neighbors who lived in Zhang Kaiji's opposite door, it may be because Zhang Huazhi always gave Zhang Haonan money in private, but no one knew the reason why they really quarreled, after all, this is a matter of people's families.

S city is not like a rural area, who has something going on in the countryside, and soon everyone will know, but the city is different, everyone is very busy every day, has their own things to do, and has no time to care about other people's lives, it is possible to live in the same community, people in the same unit building, may have lived for more than ten years, do not know each other, have not spoken, all belong to normal.

After reading these materials, Xu Lang had a general understanding of the three victims, so he raised a few questions.

First, Zhang Kaiji and Zhang Huazhi have been married for ten years, why don't they have children? Is it because the two of them want to be the Dink family, or is one of the two people having a health problem and can't have children?

Second, Zhang Kaiji and Zhang Huazhi had such a good relationship between husband and wife before, why have there been conflicts in recent years? What is the reason?

Third, since Zhang Haonan had a bad life in Qiyang City, and he didn't have any relatives there, why didn't he come to S City to join his sister?

Fourth, Zhang Kaiji was killed by Jiangling, so who killed Zhang Huazhi and Zhang Haonan? Could Zhang Huazhi also be killed by Jiangling? If Zhang Huazhi and Zhang Kaiji were both killed by Jiangling, then, what did she kill these two people for? Who killed Zhang Haonan?

What made Xu Lang more concerned was Zhang Haonan's death, because when Zhang Haonan's body was found, the situation was a little miserable.

Zhang Haonan had a fight with someone before his death, two front teeth were knocked out, the bridge of his nose was also broken, and he was stabbed eight times, according to the information from the Qiyang City police, Zhang Haonan died when he was stabbed for the third time, in addition, the five fingers of Zhang Haonan's right hand were chopped off, and the fingers were found in their trash can, and what is even more unexpected is that Zhang Haonan's male external genital organs were cut off, and they have not been found yet, however, when the police in Qiyang City investigated the scene, In the bowl of a dog raised by Zhang Haonan, a part of blood stains and minced meat were found, which should be Zhang Haonan's lost external genital organs.

Xu Lang looked at Zhang Haonan's photos and materials and fell into deep thought.

Judging from the scene and method of Zhang Haonan's death, it should be a revenge killing, and it is likely to be a love killing, because if an ordinary murderer kills, when he kills, he will only kill the other party, not abuse the other party, and will not destroy the body of the deceased, unless there is some deep hatred.

After thinking of these, Xu Lang said a few questions that came to mind before and speculation about the cause of Zhang Haonan's death.

After listening to this, Du Ziqiao nodded and said: "Zhang Haonan may have died of the possibility of love murder and revenge killing, the police in Qiyang City have already guessed that if it is just a simple homicide case, then the police will definitely follow this clue to investigate, but Zhang Haonan's brother-in-law and sister are dead, and there are some problems in this direction." ”

Xu Lang nodded and said: "We won't care about Zhang Haonan's case for the time being, and the police in Qiyang City will continue to investigate, let's talk about Zhang Kaiji and Zhang Huazhi's case first." ”

"The bodies of Zhang Kaiji and Zhang Huazhi have undergone a judicial autopsy, and there is no problem with their bodies, they can have children, but they are ......"

"But what?"

"However, when the autopsy of Zhang Kaiji's body was performed, it was found that Zhang Kaiji had undergone ligation surgery a long time ago."

"Ligation surgery?"

Xu Lang subconsciously frowned.

"In addition, Zhang Huazhi has a history of childbirth, and according to the autopsy results, Zhang Huazhi should have given birth to a child three years ago."

"Have children? Whose? Xu Lang touched his chin and asked.

Du Ziqiao shook his head, indicating that he had not yet investigated.

Zhang Kaiji has had ligation surgery, it is impossible to have children, men who have had ligation surgery are not like women, women who have ligation surgery can also recover through surgery, but men are different, since, Zhang Kaiji has had ligation surgery, and Zhang Huazhi had a history of childbirth three years ago, so, who is this child? And where is this child now? Does Zhang Huazhi's death have anything to do with Zhang Kaiji?

"Did you find the child?" Xu Lang asked.

Du Ziqiao shook his head and said, "It's still under investigation, and there are no clues yet." ”

"That's the case with the investigation of the couple's property?" Xu Lang asked.

"Colleagues from the Chengdong Criminal Investigation Detachment investigated the bank deposits of Zhang Kaiji and Zhang Huazhi, and the combined deposits of the two men were about nearly one million."

"Heh... Nearly a million, so many? Xu Lang said with some surprise.

"Zhang Kaiji's IT company is still very good in S City, he is a middle-level leader, and he has been in the company for so many years, so having so many deposits is nothing." Du Ziqiao explained.

"Did anything unusual after the investigation?"

Du Ziqiao shook his head and said, "No." ”

Du Ziqiao seemed to remember something, took out an insurance policy from the table and handed it to Xu Lang and said, "Oh, by the way, at the end of last year, Zhang Kaiji bought Zhang Huazhi a personal accident insurance, with an insurance amount of one million. ”

"Hey, with an insurance amount of one million, Zhang Kaiji is really rich." Xu Lang looked at the insurance policy and said.

"Yes, Zhang Huazhi and Zhang Kaiji are engaged in clerical jobs, basically sitting in the office, and they are not engaged in high-risk occupations, do they need to buy this insurance?" Du Ziqiao also frowned and said.

Xu Lang looked at the insurance policy, smiled, and said, "It's getting more and more interesting." ”

"How?" Du Ziqiao looked at Xu Lang and asked.

Xu Lang put down the insurance policy, rolled his eyes and said, "Don't tell me, you don't see the problem." ”

Du Ziqiao also smiled, looked at Xu Lang and said, "I still want to hear your opinion." ”

"My opinion?"

Du Ziqiao nodded.

Xu Lang patted the insurance policy and said: "This insurance policy is the biggest opinion, whether it is Zhang Huazhi or Zhang Kaiji, there is no need to buy insurance with such a large amount of insurance, and it was bought before Zhang Huazhi's sudden death, what does this mean?" shows that Zhang Huazhi's death is closely related to Zhang Kaiji, and it is likely that he is the murderer of Zhang Huazhi. ”

"What was the motive for the killing? Is it just for that million insurance? Du Ziqiao asked with a frown.

Xu Lang nodded.

"No, Zhang Kaiji and Zhang Huazhi's joint property adds up to nearly one million, and they already have a house, although they don't have a private car, but, judging from their economic strength, it's still a very simple thing to buy a car, if it's just for insurance money, it won't kill people." Du Ziqiao retorted.

Xu Lang nodded and said: "The huge insurance amount is only one of the reasons, and another reason may be related to Zhang Huazhi having given birth to a child." ”

Speaking of this, Xu Lang took out a police investigation report from a pile of information, handed it to Du Ziqiao and said: "Didn't you find out, Zhang Huazhi didn't go to work in an IT company in the summer of 13 to 14, and took a vacation for more than half a year, she didn't stay in S City, but returned to Qiyang City, what do you say this means?" ”

Du Ziqiao took it over and found that this was indeed the case, and according to the conclusion reached by the forensic doctor after the autopsy of Zhang Huazhi's body today, Zhang Huazhi had a history of childbirth three years ago, that is, when he was 14 years old, and at that time, Zhang Huazhi was in Qiyang City.