Detective: Open your eyes, I am handcuffed in the interrogation room

The detachment leader's office.

Listening to Geng Jianqing's words, Chen Yi touched his unshaved beard and said: "Being able to kill with one blow is either a professional advantage or accumulated experience. He did not change the weapon or method of committing the crime in the three murder cases. So if there is It’s an old case, and it’s probably the same.”

Geng Jianqing: "Let's look for it. I will do this. Your task is the current case. If you are lucky, you may be able to save the investigation of the case and directly identify the murderer."

Chen Yi was helpless: "Uncle Geng, you are putting pressure on me."

Geng Jianqing smiled and said: "You are too sensitive. I didn't mean that. Every time the murderer kills more people, more clues will be exposed. As long as he has neglected in the Yangcheng case, then Yangcheng will be his final trial." place."

"Work hard these days and do your best during the prime time to solve the case and strive for the best results."

Chen Yi nodded: "Understood."

Geng Jianqing left, leaving behind the files on the Ningcheng case, and promised to send someone to deliver the files on the Imperial City case before twelve o'clock tonight.

Although the possibility of a serial murder case cannot be said to be certain, it has reached the standard for joint case processing. There will not be so many coincidences. The criminal police never deal with coincidences when handling cases, but only accept the inevitable.

It was already nine o'clock in the evening, but Cai Wenwen's parents and younger brother had not left. Cai's mother, who reacted most violently, wanted to go to the forensic room to see her daughter again many times, but was stopped by the police.

Several hours have passed, and Cai's mother's mood still hasn't eased, and she's getting more and more out of control.

Only a mother can understand her grief at this moment.

Compared with Cai's mother, Cai's father and Cai Wenwen's younger brother Cai Yupeng are relatively more receptive. Although they are also heartbroken, they have no problem accepting questioning.

Chen Yi knew that he could not delay any longer, so he began to meet the two of them alone. During the process, another person was responsible for accompanying Cai's mother to prevent the other party from acting excessively due to emotional breakdown.

In terms of private life, his younger brother must have known more. Chen Yi first called Cai Yupeng in the inquiry room.

Cai Yupeng is 20 years old and is a sophomore this year. His family has protected him well, and his childishness has not completely faded away yet. He has a strong student temperament.

He sat quietly in front of Chen Yi, his eyes were red, and the tears on his face made him look a little embarrassed.

The death of his biological sister is also a bolt from the blue for his younger brother. He can no longer be coquettish and ask for money from his sister, and can no longer talk to his sister about his feelings. In the dead of night, a huge feeling of loneliness will surround him.

Some people say that the relationship between brothers and sisters will never be as good as the relationship between brothers and sisters. Gender differences will sublimate the family relationship.

Chen Yi felt that this sentence was correct.

A daughter is her father's little cotton-padded jacket, and her sister is her brother's guardian angel.

Cai Yupeng lost his angel.

"Yupeng." Chen Yi did not use his surname, but used his first name to close the distance between us. "You are a college student. I know this sentence is cruel, but I must say that the person is dead. All you can do now is to help. The police can provide more clues to improve our chances of solving the case."

"Now, put away your sadness for the time being and listen carefully to every question I ask, do you understand?"

Hearing the word "solved the case", anger emerged on Cai Yupeng's face, replacing the original pain. He nodded heavily: "Okay!"

Chen Yi: "Does Cai Wenwen have a boyfriend?"

Cai Yupeng: "No, I have never heard her talk about it."

Chen Yi: "Is there anyone chasing her?"

Cai Yupeng: "Yes, my sister said before that there was someone chasing her in the workplace, but she didn't agree, saying she didn't like him because he was too ugly."

Conversations between siblings are always relatively direct, and what Chen Yi gets is the most realistic situation.

Chen Yi: "Did the people chasing her stalk her? Did they do anything that made your sister very angry?"

Cai Yupeng shook his head: "No, she never said that."

Chen Yi: "Does Cai Wenwen have someone she likes?"

Cai Yupeng: "No."

Chen Yi: "Where does she usually live?"

Cai Yupeng: "I have always lived at home."

Chen Yi: "Does she have a house?"

Cai Yupeng: "No, but I do. My parents just bought me a house last year."

Chen Yi: "You go to university locally?"

Cai Yupeng nodded.

Chen Yi: "Study day or live on campus."

Cai Yupeng: "Live on campus."

Chen Yi: "How often do you go back?"

Cai Yupeng: "I usually go back on weekends and occasionally on weekdays. It's not far away. The bus will arrive in more than half an hour."

Chen Yi: "Has Cai Wenwen stayed up all night?"

Cai Yupeng was sure: "Never."

Chen Yi: "Is there anything unusual about her recently? Think carefully and answer seriously."

Cai Yupeng recalled for a long time and said: "I...I didn't think there was anything unusual about her. I have been at school these past few days and have not contacted her."

Chen Yi: "What are her hobbies?"

Cai Yupeng: "Paint."

"Painting?" Chen Yi subconsciously sat up straight. The victim in Imperial City studied art. "What type of painting?"

Cai Yupeng: "Oil painting."

Chen Yi: "Hobby?"

Cai Yupeng: "Yes."

Chen Yi: "When did it start?"

Cai Yupeng: "She has loved painting since I can remember, and she has never given it up for so many years. My sister said that her dream was to be a painter, but my parents thought that was not a good job, so they strangled her to death in middle school. "

Chen Yi could not determine whether this was a characteristic of the crime, because Bi Xuelan from Ningcheng did not understand painting at all.

If the murderer's motive was related to painting, then why did he choose Bi Xuelan? He can definitely look for someone who is more suitable for the crime. There are plenty of girls who know how to paint, so just go to school and look for them.

Could it be that we are running out of time? Because Bi Xuelan's daughter studied painting, she simply settled for the second best and chose Bi Xuelan?

No, it's too far-fetched.

"What is Cai Wenwen's personality like?" Chen Yi continued to ask.

Cai Yupeng thought about the adjectives and replied: "Shy, very kind and helpful."

Chen Yi: "Can I be understood as introvert?"

Cai Yupeng nodded: "Okay, she's just introverted. My sister is a very quiet person and doesn't like to deal with outsiders. The reason why she took the bank exam was because of pressure from her parents. Anyway, she told me that she was not happy and always wanted to secretly Resign."

Introverted and unsociable.

Chen Yi remembered this feature, which matched Bi Xuelan's. I wonder if it was consistent with the victims in Imperial City.

This is strange. Why did an introverted and shy girl, a good girl who never stayed out late at night, take the initiative to get a room in Cuiping Garden on the day of the crime?

What happened that made her decide to rent a room?

Also, whether it’s for a secret date, a grudge against your parents, or other reasons, you wouldn’t go to Cuiping Garden, right? With her work and family background, she can still afford to open a hotel for a few hundred yuan.

The most reasonable possibility is that the murderer asked her to drive it.

Why is she so obedient?

What kind of person can make her willing to book a room?

In a serial murder case, the more people are killed, the more clues are exposed. The victim in the Imperial City case died in a cemetery, the victim in the Ningcheng case died in a semi-abandoned warehouse, to put it bluntly, it is considered to be in the wild, and the victim in the Yangcheng case died The reporter Cai Wenwen died in a daily rented house, so there is a lot of basis for analysis.

Chen Yi could feel that the distance between himself and the murderer was beginning to close, but it was only close.

"What kind of man does your sister like?"

"ah?"

Cai Yupeng was stunned by the sudden question.

Chen Yi: "Let me ask another way, what kind of man is irresistible to Sister You, and his vigilance will be reduced to a minimum. You should understand what I mean."

Cai Yupeng: "That must be handsome. My sister is a beauty control."

Chen Yi was not satisfied with this answer: "What about other things? For example, personality, occupation, etc. To be more specific, this matter is very important. Think about it slowly, has your sister mentioned it?"

Now he suspects that the murderer is a 120-pound bamboo pole. He doesn't think a bamboo pole can make him handsome. Being too fat or too thin will affect his appearance.

Cai Yupeng fell into deep thought and didn't speak for a long time.

Chen Yi was not in a hurry and waited slowly. The victim's family was more eager to catch the murderer than the police.

Three minutes passed before Cai Yupeng raised his head and said, "Understand and empathize."

Chen Yi: "What do you mean?"

Cai Yupeng explained: "My sister wants to be free to choose life. If a man's experience is the same as hers, there will definitely be a common topic that can win her favor. You just mentioned profession... it would be best if he is a painter. My sister would definitely be willing to work with a painter. become friends."

Chen Yi asked: "Does she have such friends?"

Cai Yupeng: "I haven't heard her say that."

Chen Yi frowned slightly.

Painting was mentioned again.

Considering the characteristics of serial murder, Bi Xuelan does not meet the criteria at all, but if the murder case of Cai Wenwen is taken out separately, then what Cai Yupeng said still makes sense.

But these are just speculations. No one knows why Cai Wenwen went to check out a room, and the reason for her murder cannot be analyzed.

After asking Cai Yupeng, Chen Yi met Cai Wenwen's father.

"Cai Wenwen didn't come home last night, how did she explain?" Chen Yi asked.

Father Cai seemed to have aged ten years. He said feebly, "It's because the bank is working overtime."

Chen Yi: "Do you often work overtime?"

Father Cai: "It's quite common. I can't get off work until 11 o'clock at the latest. By then, her mother and I had already gone to bed. She said she would work overtime and I didn't think much about it. I didn't expect to find that she was not at home at all the next morning. I can’t even get through on the phone…”

At the end, he choked up and held back tears.

Chen Yi: "Mr. Cai, what does Cai Wenwen do on weekends and holidays?"

Father Cai quietly wiped away his tears and replied: "Sometimes I paint at home, and sometimes I go out to party with friends. I don't know what I do specifically. When my children are older, I rarely ask about their personal affairs, and I won't even ask them if I do. explain."

After chatting with Cai's father for a while, Chen Yi proposed that he wanted to visit Cai Wenwen's bedroom. Cai's father agreed that it would be fine if the police followed him home. He was really worried that his wife would jump into the river on the way back.