Where shall I be found at day's early break from wine awake? Tomorrow morning, they said to each other, "Take care."

  There was no sentimental story. The man and woman opened a room, drank a night's wine, revealed their hearts, and then became friends.

  Two people who hate each other for losing their loved ones, one is looking for their brother and killing their parents, and the other is gathering power through a web of vengeance and pursuit of ideals.

  Lu Ziqi washed away the luxury on her face, not decorating it with a natural beauty that shone brightly.

  She talked about her background. When she was six, her parents were killed at home, and her three-year-old brother disappeared after leaving behind a bloody shoe. She was first adopted and fostered in the United States by herself after the age of nine. After that, she achieved a series of unbelievable successes, obtaining two doctorates. This time, she came back with two goals, one was to find her younger brother, and the other was to find the real murderer. Tonight, he approached Zhao Ziming just to confirm his guess as to whether Zhao Ziming was Lu Ziming or not.

  Gu Tianyou said, "Lu Ziming is one year younger than me. His age is right."

  Lu Ziqi shook her glass and smiled, "So you're two years younger than me. You have to call me big sister. Hurry up and call me."

  Gu Tianyou obediently said, "Sister."

  "Haha." Lu Ziqi laughed and closed her eyes, her drunken red face swaying in the wind like peach blossoms. She said, "Since you admit your sister, you have to help her. Give me a chance to see if there is a red birthmark on Zhao Ziming 's butt."

  No wonder she wanted to pretend that she was a young miss and sneak in, so she wanted to find an opportunity to see Lu Ziming's butt.

  This elder sister was truly a wonderful person. She had the skills of a professional fighter, earned two doctorate degrees, and could perform the most complicated surgery. However, she had messed up her life and could not even make a friend. But she boasts that there are a lot of friends in America who like her. When Gu Tianyou bitterly asked her how many boyfriends she had dated over there, she suddenly stopped talking. She pretended to count for a while with her fingers. Finally, she put them down and sighed, "Alright, all of them are him? No, men are all bitches. I can't see that women are better than them. I don't need them at all. It's enough for me to have my fingers on a girl." As he spoke, he shook his two fingers ambiguously.

  \r \r \r

  Gu Tianyou finally couldn't help but spit out a mouthful of wine, causing the sofa and trousers to be everywhere.

  "I'm pretty, my studies are excellent, and fighting is professional. Why do I need a man?" She was clearly drunk. She sat on the other end of the sofa and laid her legs flat. Her two beautiful feet were as white as jade, and they were as beautiful as new bamboo shoots. He naughtily kicked Gu Tianyou in the leg and said, "Hey, you just said that you recognized me as your godsister. Do you mean what you said?"

  "Of course," said Gu Tianyou.

  Lu Ziqi said, "That's good. Then I'll go to sleep first. You're my younger brother, so you can't take this opportunity to bully me."

  "Don't worry about sleeping." Gu Tianyou smiled and said, "I'm afraid of your stressful reaction."

  She shook and climbed into bed, fell asleep, twisted her hands and feet around the quilt, and curled up like a baby looking for security. Most of the time, she made herself incredibly powerful, and she was shining everywhere she went. It made men feel ashamed of themselves in front of her. But at this moment, she was just a fragile little girl.

  Understanding a person is like an adventure. The deeper you go, the more dangerous it is. If you are not careful, you will fall into it.

  Gu Tianyou looked at Lu Ziqi who was sleeping soundly and suddenly felt an urge to protect her.

  … … … …

  In the case analysis class, Song Qiang had just finished his case presentation on the podium. It was about the case of four people who died from poisoning on the highway last year. The case had been solved. In order to stimulate the students' thinking and improve their logical reasoning ability, Song Qiang had only stated the events of the case, indicating that everyone could freely analyze the case.

  The long-legged girl in the front row held her cheek with one hand and took notes with the other, looking very serious.

  There was a song in the headset, the big sister that Zhang Chu sang twenty years ago.

  Miao Shifan said that good music is sung for the soul and will never bother you because of time. It's just a change of heart that keeps you from releasing your soul.

  At this moment, Gu Tianyou was thinking of a girl who had suffered the same fate as him. The same young and lonely, the same in the shape of an island grew up in the environment, the same bear hatred. At the same time, he also longed for the freedom of his soul on the journey of pursuing his ideals. Sometimes she's so stupid that she doesn't socialize at all. Sometimes it was quite fake. To her, being strong was like a piece of paper armor. It seemed to be powerful, but in fact, it could be broken with a single poke.

  She wanted to see Dai Xiaolou because of the murder of her parents back then. The case back then was handled by Xu Xiaoman 's father, Xu Tao , and because of various factors, it was solved into an open case. The two suspects, Liang Bida and Zhao Wei'an, were both confirmed not to be murderers. Zhao Wei'an had an alibi, while Liang Bida lacked strong evidence. The case was finally settled. Years later, someone suddenly began to send her material evidence of the murder and told her that her younger brother was still alive. So, she gave up the good and simple working conditions in foreign countries and returned to her homeland.

  The domestic legal environment is complex, and she needs not only strong evidence but also the help of powerful people to reopen the investigation. Dai Xiaolou had clearly rejected her. Now, she has temporarily focused on finding her younger brother.

  Why did Dai Xiaolou refuse? Perhaps it was because Xu Tao had sponsored the case back then that he didn't want to ruin his teacher's reputation? Perhaps as one of the investigators, he was no longer optimistic that the case would be solved? After all, times had changed. There were only a few records left in the case back then. It was almost impossible to find clues to solve the case. Should I help her revive the old case?

  In class, Li Bowen is making a wonderful presentation on the case just now. Including the long-legged girl, the girls were all listening attentively. Even if he didn't understand, he still tried his best to look as if he was interested in a creature that was in the same dimensional space as him.

  I think the investigation of this case should be focused on the modus operandi and the source of the murder weapon. The four victims all died of poisoning and all drank Sprite drinks containing highly toxic cyanide and potassium. Potassium cyanide is a controlled chemical that cannot be traced very widely. As long as we find the source of the poison, we can greatly narrow down the suspect range.

  The murderer committed a series of crimes and the four victims had nothing to do with each other, so I think this case is very likely a serial murder triggered by a perverted personality. Four corpses were found on the highway, and all of them drank Sprite Drinks. The four victims were manual laborers with limited education and low income. They were easy to be tricked and killed because of their greed for small profits. The murderer responded by placing poisonous drinks where the victim could find them, and the case followed. This explains why no traces of forced poisoning were found on each of the deceased's bodies. When the killer succeeded, he took away important evidence, drink bottles.

  These are my conclusions about the motive and the process of the case. Let me now turn to the main points of the detection work. I don't think Sprite, a common drink, needs to be specially prepared. Killers are likely to buy it in a service area on the highway or at an intersection service, and then take it with them to commit a crime on the highway. Therefore, I suggest that, on the basis of relying on poison sources to identify a certain number of suspects, we should further narrow the scope of suspicion by investigating the surveillance of convenience stores in all service areas of this road section.

  It was a very interesting and detailed statement. In fact, after this case was solved, many results confirmed Li Bowen 's reasoning. It's just that the detection process is somewhat different from your reasoning and assumptions. Zhang Baohua of the Criminal Police Squadron of the Traffic Branch initially held the same opinion as you, but after finding the source of the poison, he reached an impasse. Because there were too many people who might have come into contact with cyanide potassium and the storage location was not monitored, the surveillance in the screening service area found that there were a lot of people who bought Sprite drinks within 24 hours before the crime. Because of the high mobility, screening and locking were very difficult.

  Song Qiang first confirmed Li Bowen 's words, then continued, "Many times, we have to face the situation of finding a needle in a haystack … I'm sorry, everyone, I'm going out to pick up the phone." Not long after, He returned to the podium, His face was clearly filled with excitement. He said loudly, "I have good news for you, "There will be an important person who will come to our class to discuss this case with our classmates. This important person is not only my idol, but also the idol of many colleagues in the criminal investigation industry. Now, please allow me to sell a small test first. Everyone, wait patiently for a while, and the answer will be revealed very soon."

  The classroom quieted down. In just a short while, the silence was quickly broken by the intense whispers.

  The students were all guessing who it was. It was so awesome and cool. He was actually the idol of Director Song, who was known as Little Song Ci. Not to mention, he was also the idol of many criminal investigators. What an amazing person! How could such a person suddenly be interested in a case study class at the police academy?

  Gu Tianyou was still thinking about Lu Ziqi with his headphones. This is a thankless affair, It takes more than great courage and determination to operate, It was not easy to ask a certain leader to urge him to make a few words. There were policies on the top and countermeasures on the bottom. If Ding Baofeng and Dai Xiaolou were determined not to reopen this case, no matter how big a figure spoke, they could still not help. This was a problem within the system, not a matter of power.

  This matter was extremely difficult to operate, but it wasn't absolutely impossible. If he wanted to help her, he had to first find a person who was enough to convince Dai Xiaolou and Ding Baofeng to lead the case. There were too few people like this. Among the people he knew, only Guan Peiyuan , the newly retired director of the old hall, had the strength to do so. But Guan Peiyuan 's relationship with Xu Tao back then was extraordinary, and he admired Dai Xiaolou exceptionally. How could he be moved?

  Gu Tianyou and Guan Peiyuan had formed an incense blossom because of the matter of the criminal investigation brigade's dormitory and apartment. At present, the project over there has been taken over by Feida Real Estate as the construction party. He could report the progress of the project from the beginning to pay a visit, but how to persuade Guan Peiyuan was a big problem.

  In the classroom, the mysterious figure finally appeared on the stage. He was a white-haired and energetic old professor, carrying the sign of deputy chief police captain on his shoulder. Song Qiang quickly walked towards the door with a pilgrimage-like expression. He bowed politely and said, "Hello, I'm Song Qiang. Thank you for coming."

  "Hello, my name is Li Yunqing . I'm here today to discuss the case with you. Second, I'm here to visit you. There is also an important purpose. Before we begin the case discussion, I want to meet a child. May I ask which of you is Gu Tianyou?"