During spring in Beijing, the sky was often pale gray and the haze was like a dry veil covering the sky.
Ji Bai was leisurely sitting on a white recliner in his courtyard with a pot of tea in his hand and a quiet pond in front of him. The peach tree by the water was in full bloom. There were scattered petals on the grass and a light fragrance wafted in the air.
He took a sip of tea and closed his eyes, only to hear Xu Xu's voice. Her voice was as calm as water, but it made the night in front of him seem even quieter.
On the other hand, Ji Bai's "I'll give you two minutes" aroused Xu Xu's competitive spirit. She answered faintly, "Okay." Then, she secretly prepared herself and entered a state of full concentration for battle.
"First of all, according to statistics, 98.9% of criminals who endanger public security in China over the past ten years are male and 96.6% have a high school education or below. Therefore, we can basically determine that the criminal is male and has a low level of education."
"Mmm." Ji Bai tilted his head and lit a cigarette. "Continue."
"Secondly, the criminal's target is very clear.
If he wanted to retaliate against ordinary people, there are three parks in Lin City that are larger and have a higher flow of people. If he committed a crime in these parks, it would be more difficult for us to investigate. However, the criminal did not choose these parks. Instead, he took a greater risk and chose to commit his crime in several parks closer to the CBD.
These parks were planned by the government and built by some financial groups in the CBD. Usually, there are some ordinary citizens, but most of the tourists are residents near the CBD and they are either rich or powerful. In the hearts of the citizens, these parks are the symbol of the CBD.
This can reflect two points. First, the criminal is very familiar with this area and is likely to work and live in this area. Second, he hurt random people within a specific range and it's obvious that he wants to vent his feelings. It's revenge against the city's high-income people, or even against the CBD. "
Ji Bai laughed silently, but his tone was indifferent. "Then why isn't it an unemployed person? A fired white-collar worker? Must it be a security guard? "
Xu Xu answered, "Among the unemployed, there may be people who hate society as a whole, but they won't only hate the CBD because they don't have the opportunity to understand it. You won't hate something that you barely understand and can't even reach. Moreover, there are very few unemployed people in the CBD.
A fired white-collar worker is more likely to retaliate against the company or someone he works for, but he won't hate this class — because he belongs to this class, why would he hate himself?
The people who fit the criminal's description the most were those who were unreachable for the prosperity and wealth of the CBD. They were the low-income workers who worked in the CBD.
It must have been a major setback at work recently that increased his frustration and hatred for the wealth of the CBD, so he started to commit crimes.
Moreover, for a young boy who was unwilling to give up, being a security guard was relatively decent among all the low-paid jobs.
In addition, the criminal's time of crime was very sporadic, indicating that his working hours were irregular. The working hours of the CBD security guards are three shifts. "
Ji Bai asked, "So you deduced that he didn't go to work on Saturday morning based on the time of the crime?"
Xu Xu answered, "Yes. There was a case of assault on Saturday afternoon. Because there were a lot of people during the weekend, it was impossible for the blade to be buried on Friday. It could only have been buried on Saturday morning or noon. "
Ji Bai did not say that she was right, nor did he say that she was wrong. Instead, he frowned and read another line of words on the report, "His personality is relatively irritable. He should have violated the law when he was a teenager, or at least been severely punished by the school. When he was young, he encountered major changes, such as his family failing and his parents divorcing. He didn't, or he only had a very superficial love relationship … What are these messy things?"
"These are the basic characteristics of a criminal with an 'antisocial personality'." She looked up at the photos of the blades on the white board and said slowly, "As for whether the criminal was in a romantic relationship … Because I have a feeling that although he has good observation and judgment, and is a little smart, his mentality is not mature … He used a paper knife to form a five-pointed star and poured river water or even spicy soup on it. It's more like the revenge of a depressed teenager. It's not smart, and it's more impulsive."
Both of them were silent for a while, then Ji Bai spoke first, "Are you done?"
"I'm done." Xu Xu looked at her watch and added, "1 minute and 58 seconds."
Although her tone was calm and slightly arrogant, her breathing was obviously heavier.
Was she nervous? Ji Bai closed his eyes slightly and took a puff of his cigarette.
Over the past few days, the two of them had talked on the phone. The impression that Xu Xu gave him was that she was an excellent female nerd, a disciple and subordinate who was worth sculpting. That was all.
However, at this moment, with the clear sound of her breathing, her image suddenly became vivid. She had short hair, a small face, pale skin, and a serious expression. She was undoubtedly smart, arrogant, and stubborn, but she also had the immaturity of a young girl.
Yes, for a criminal police who often faced rotten human nature and blood, this girl was too talented, but also too immature.
Therefore, Ji Bai began to attack her without hesitation. "Xu Xu, are you used to being so imaginative and making guesses based on so-called 'feelings' to solve cases?"
Xu Xu immediately frowned and answered stiffly, "If you interpret behavioral analysis as' guesses', then I have nothing to say."
Ji Bai sneered. "You're still not convinced?"
"Sorry, I'm not convinced."
"Then why didn't you catch the suspect?" Ji Bai asked coldly.
Xu Xu could not answer.
Neither of them spoke, only the faint sound of each other's breathing could be heard through the phone. After a while, Xu Xu asked faintly, "Is there anything else? If not, I'm hanging up. "
Ji Bai asked, "Why are you in such a hurry?"
Xu Xu suddenly felt a very rare sense of anxiety.
However, she heard him say, "Why can't we find the suspect? It's simple. Assuming that your conclusion is correct, there must be a problem with the investigation process. Some unpredictable deviation occurred, allowing the criminal to escape our search. "
Xu Xu was stunned, then she listened to him continue, "Listen, tomorrow, Zhao Han will take you to investigate again. You have to see, investigate, and meet everyone yourself. You have to do it yourself, not hide in the office and analyze it.
The criminal must be among the people you've already met. Since you know him so well, even if there's no evidence, you have to recognize him when he stands in front of you.
I'll return to Lin City tomorrow afternoon. I want to hear your new report the day after tomorrow. "
Xu Xu was stunned, which was rare.
It was only now that she was sure that Ji Bai actually supported her.
She was also quite surprised that he said, "even if there's no evidence, you can recognize him when he stands in front of you."
This was because Xu Xu's mentor, Cui Yihua, a nationally renowned criminal psychology professor, had said something similar to this to her in private. "A truly outstanding criminal psychology profiler will be able to see through the suspect even if no direct evidence has been found." However, the professor would never say this publicly, because it would seem too absolute, too subjective, and almost ideal. Even the professor could not guarantee that he could do it.
As a police officer who did not specialize in criminal psychology, Ji Bai was able to say the same thing after listening to her report. This could only mean that his insight and understanding were amazing — he really understood what she was doing.
For a person like Xu Xu who liked to analyze and think, the resonance of ideas was something that could stimulate her more than any actual reward. Therefore, even though Ji Bai was aggressive before, she had always been careless and did not care too much. Instead, it was his deep understanding of criminal psychology and his extremely bold trust that made her feel a little excited, but at the same time, touched.
"Thank you." She paused, "I …"
Ji Bai could hear the emotion in her voice and thought that she was going to say something to thank him for his appreciation. Unexpectedly, she was silent for a moment, then solemnly and monotonously repeated two words, "Thank you."
'She's really not good with words …' Ji Bai laughed silently. "Okay, I'm hanging up now, sleep early."
***
The next morning, Xu Xu arrived at the police station and called Zhao Han to prepare for work. At this time, the two of them received a text message from Ji Bai, asking them to start with the staff of the CBD park. Because the nature of the park's work was similar to that of the security guards, there were also three shifts.
Xu Xu did not agree with this instruction. The working environment of the park's security guards and the CBD office building's security guards were very different. They would not be frequently stimulated by the gap between the rich and the poor.
Zhao Han also said that they had checked the park's security guards at the beginning and did not find the suspect.
However, Ji Bai insisted. He only said one thing, "The criminal committed four crimes, but not once was he captured by the surveillance cameras."
In other words, the criminal should be very familiar with the park's security system. The four parks were all built in a unified plan.
Therefore, Xu Xu's behavioral analysis contradicted Ji Bai's logical reasoning. In the end, they naturally had to follow Captain Ji's opinion.
Although Xu Xu did not agree with Ji Bai's idea, she carried out the order meticulously. By evening, Xu Xu and Zhao Han had already met all the security guards of the three parks, but they still did not find the suspect.
Finally, they arrived at Ruiying Park, where the first crime happened. This was the farthest from the CBD, so it was the last place to be checked.
At sunset, Xu Xu and Zhao Han sat in the security captain's office. The office was in a row of bungalows, and there were more than forty surveillance cameras installed on one wall.
The security captain's surname was Ding, he was of medium height, in his forties, had a kind face, and spoke very maturely. He cooperated and brought out the resumes of all the employees.
In the end, there was still nothing.
There were a total of 30 security guards in the park. A total of 18 people were not on duty last Saturday morning, and 8 of them met the age and education requirements. However, among these people, none of them had been severely punished recently.
Xu Xu wanted to meet everyone, but Captain Ding was put in a difficult position. "There are only those on duty now, the others might have gone somewhere to play. Can you meet them tomorrow morning? I'll inform everyone to come over. "
Xu Xu and Zhao Han walked out of the captain's office. At this time, the sky was completely dark, and the stars were like broken jade, quietly decorating the night sky. The two of them sat on the bench in the park, feeling a little tired.
"Start checking the CBD security guards tomorrow." Zhao Han said, "Captain Ji arrived this afternoon, he should be coming to work tomorrow."
Xu Xu did not say anything. She kept thinking about what Ji Bai said last night.
He said, "Some kind of unpredictable deviation occurred, allowing the criminal to escape our search."
If the criminal really hid the real information in some way, wouldn't the screening conditions that she had originally set be unreliable?
Ji Bai also said, "Even if there is no evidence, when he stands in front of you, you have to recognize him."
There was no evidence, no standard. Only that person's appearance …
Xu Xu suddenly stood up and rushed to the captain's office. Zhao Han followed behind. "Xu Xu, what are you going to do?"
Xu Xu did not answer, she only pushed the door open and walked to the captain. Captain Ding was very surprised to see them return. "Is there anything else, police officer?"
Xu Xu nodded, pondered for a moment, and said, "The person we are looking for is not tall, thin, and has an above average appearance.
He pays a lot of attention to his appearance and will spend a lot of money on clothes. However, the way he dresses always makes people feel inexplicably uncomfortable.
He likes to show off, but the things he says always make people feel unrealistic.
He is not very sociable, and none of his colleagues are close to him.
He has a bad temper, he will suddenly get angry, and he can't take criticism. He can't understand other people's words very well, and when you talk to him, it always feels like he 'doesn't listen'.
He will boast to his colleagues that his family used to be very good … "
Captain Ding was stunned at first, but as he listened, his face slowly changed.
Xu Xu looked at his expression, and her heart was filled with joy, but her face became more solemn. "Who is it?"
Although Zhao Han did not quite understand, when he saw their expressions, he also reacted and picked up the resume on the table.
"Yang Yu?" The captain was very surprised. "You know Yang Yu?"
Zhao Han immediately flipped to his resume and frowned. "But his resume says that he was rewarded for his outstanding work performance last month and was given a bonus of 500 yuan. Moreover, he was on duty last Saturday morning. "
Xu Xu took Yang Yu's resume, glanced at it, and looked up. "What did he receive the reward for?"
Captain Ding also became nervous. "The reward … was for the razor blade case that you investigated. A tourist was cut by a razor blade on the bench, and he was the first to discover it and help treat it … Actually, his work performance is very ordinary, but because of this, the director praised him … "
Xu Xu and Zhao Han's faces changed, and Xu Xu interrupted him. "Did he change shifts with someone last Saturday?"
Captain Ding said, "Wait … Let me ask." After that, he made a phone call and asked a few questions. His face was hesitant. "He changed shifts with someone, and it was the night shift."
"Xu Xu." Zhao Han was already a little excited, and he pointed to a line on the resume. "Four months ago, he worked as a security guard in an investment bank in the CBD."
The two looked at each other and saw the certainty and excitement in each other's eyes.
The salary of a security guard in an investment bank in the CBD was naturally higher than that of a security guard in a park. What was the reason for him to change jobs? It was more likely that he would be fired if he made a mistake.
As for why it was not recorded on his resume? It was very normal. Nowadays, when companies encountered problematic employees, as long as they did not cause too serious a loss or impact, most of them hoped that the employee would leave. They would not record the employee's name on their resume.
Was this the "unpredictable factor" that Ji Bai mentioned? The suspect changed jobs within half a year, so he hid his mistake, but the "razor blade case" made him receive a reward. Moreover, he changed shifts with someone else, so he was missed in the last round of investigation!
"Where is he now?" Zhao Han asked in a low voice.
Captain Ding's expression became strange. "He asked me to resign this morning, so I asked him to find me tonight to talk to him." He looked up at the clock. "The appointment is at eight o 'clock."
Xu Xu and Zhao Han looked at the clock, it was 7: 30.
Zhao Han took out his phone, and just as he was about to call the police station, his phone rang. After picking up the call, Zhao Han's expression changed. "We are in Ruiying Park, the target will appear soon, requesting immediate reinforcements …"
After hanging up the phone, he looked at the captain and said to Xu Xu in a low voice, "Old Wu just called. The team found a criminal suspect from the surveillance footage. He appeared at the entrance of several parks, and the time of the crime also coincides with the time of the crime. It's Yang Yu!" For the past few days, the team had been sending people to investigate the large number of surveillance footage in several parks for the past week or so. They did not expect to find something today, and it coincided with Xu Xu's deduction!
At this moment, footsteps suddenly came from the door.
"Brother Ding, have you eaten?"
The door was originally half-closed, so a fair-skinned young man with thin eyebrows pushed the door open and entered. He was of medium height, wearing a black leather jacket and dark blue security pants. The cheap fancy shirt was neatly tucked into the waist of the pants, which was very eye-catching.
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