Wu Yu said: "Thanks to you today, otherwise there would not be such a big gain." ”

Feng Yan said: "It's nothing, even if Xu Jiayan didn't reveal Zhou Yang's mental illness to us, we will check whether he has a history of mental illness, because this is the only place that can be broken through, and the only possibility that can explain that Zhou Yang was killed by him, where is there any perfect crime, it's just that some key information has not been found." ”

At around 8 o'clock in the evening, Wu Yu did not send me the information to Fengyan, but chose to come to the hospital with the information to find Fengyan.

Wu Yu found Liu Zheng and said that this case made him very frustrated, and he couldn't sleep at night, so he wanted to come to Feng Yan with the information, and just talked to him about the case in person.

It happened that Liu Zheng was also on duty at night, and the three of them simply came to the reception room of the hospital, got some coffee and food, and began to discuss the case.

Liu Zheng is also an expert in psychology, although he is not like Wu Yu, who specializes in criminal psychology, but he can also express his own opinions, and the most important thing is that he has to be present to watch Feng Yan, let him and Wu Yu be alone, definitely not.

Wu Yu didn't see it, so he brought a few sets of materials in advance, and asked Liu Zheng to take a look, saying that he was an expert in psychology and a big star in the field, and maybe he would have some unique opinions, and everyone would discuss and discuss it together, maybe it would be helpful to the case.

I have to say that Wu Yu is really serious, although this is a case that was almost judged to be an accident, Wu Yu still investigated most of Cheng Fei and Zhou Yang's family, relatives and friends, and the confessions were recorded in great detail, knowing that if such a case is let his subordinates do it, it is likely that there will be a situation of negative work, so most of these confessions and materials are collected by him personally.

Feng Yan glanced at ten lines, quickly read all the information, and began to ponder himself, after he finished thinking, Liu Zheng also finished reading.

Liu Zheng: "It seems that this case is indeed very tricky, the two suspects, Cheng Fei and Xu Jiayan have perfect alibi, Zhou Yang was in a car accident at about 9:30 a.m. on December 10, and the monitoring of his community parking lot shows that he is out of the community at 8:10, and the time to enter the high-speed toll station is 8:50, and the monitoring of the community and the monitoring of the toll station have captured his face and car, and the time of death is not disputed.

And Cheng Fei went out to work at school at 7 o'clock, arrived at the school at 7:30, the janitor testified, and then spent the whole morning in the office preparing for classes, went to the toilet twice, and came back in 5 minutes.

As for Xu Jiayan, who is less suspicious, she started the live broadcast at 8 o'clock in the morning of the same day, got off the air at 11 o'clock, and then went out to buy lunch.

There was no problem with Zhou Yang's car condition, he had not been moved, and the body did not find any abnormalities during the autopsy. ”

Feng Yan snapped his fingers and said: "Glasses, I admire you, that junior is indeed suspicious, maybe she couldn't bear Zhou Yang's torture and chose to kill him." ”

Wu Yu said with a headache: "This is an impossible crime, if it weren't for the wrong time of the insurance that Cheng Fei bought, this would have been an accident at all, but Zhou Yang died in a car accident while driving fatigue." In fact, just based on the evidence that Zhou Yang went out of the community and on the highway alone, it can basically be concluded that these two people have no chance or suspicion of murder. The deceased at the scene of the crime did not have any special injuries from the attack, the autopsy showed no chronic or acute poisoning, the car was in good condition, the deceased was in good health, and there were no diseases such as heart disease. Our investigation of Cheng Fei and Xu Jiayan can only clear their suspicions greatly. ”

Feng Yan tapped the table with his index finger and said, "No, the deceased has a disease. ”

Wu Yu frowned and said, "You mean mental illness?" Could this be fatal in an instant? ”

Feng Yan glanced at Liu Zheng and motioned for him to answer this question.

Liu Zheng said: "Patients with mental illness, if they are strongly prompted or receive some strong stimulation for their mental illness in an instant, it is very likely to lose control for a short time and instantaneously, and at high speeds, this loss of control is very fatal." ”

Feng Yan asked, "What was Wu Yu's speed at that time?" ”

Wu Yu replied: "According to the survey, it is about 120 km/h. ”

Feng Yan nodded: "In other words, he almost drove against the speed limit, so it's no wonder, if there is some psychological stimulation and hints at this time, once it gets out of control, the probability of death is extremely high." ”

Liu Zheng added: "In the period of time before Zhou Yang's car accident, were there any phone records, or did his chat software receive some pictures, voices or videos? ”

Before asking this question, Liu Zheng already had a feeling that he had set aside the clouds, this was the only point that could be broken through, and it should be the key to the murderer's killing methods, as long as he found out whether Zhou Yang had stimulated Zhou Yang in this way for a period of time before the car accident, he could basically lock the scope of the murderer.

To his surprise, Wu Yu shook his head regretfully and said: "From the time Zhou Yang went out to his death in a car accident, he did not receive a single phone call, text message, WeChat and other personal information sending records. ”

"What?" Liu Zheng's eyes widened in surprise.

Feng Yan smiled and said, "It's kind of interesting." ”

Wu Yu asked without giving up: "Could it be that Zhou Yang received this kind of information the day before, and only remembered it the next day, and then lost control and caused a car accident." ”

Liu Zheng: "This is impossible, first of all, Zhou Yang is not a mental patient, I can see his medical records very clearly, he just has some violent tendencies, and the target crowd is not the public, there is no harm to the society for the time being, otherwise the psychiatrist will not let him go, no, it should be said that if Zhou Yang really has a serious psychological disorder, to the point of endangering society, he will not come for treatment at all, and the real sick patients generally do not think that they are sick, just like Feng Yan, are you sick?" ”

"You're sick."

Liu Zheng: "Look. ”

……

Wu Yu's face twitched, and he said in his heart, how can these two people feel a little mentally problematic, what about playing?

Liu Zheng continued: "Therefore, it is impossible for a patient like Zhou Yang to bring the emotions of the first day to the next day and then explode again. In fact, the example I just listed is already very extreme, he received information that made him lose control in a short period of time, and then had a car accident, such a situation is almost impossible to happen, unless a very superb psychological expert has specially customized a set of murder plans for the details of his illness, such as specially finding some language, text, pictures or videos that can stimulate his psychological trauma for him to listen to or watch, and also to ensure that he will definitely listen or watch on the highway, so as to have the probability of letting him lose control and get into a car accident.

I have just been emphasizing that it is instantaneous, and it is impossible for a patient like Zhou Yang to be troubled by a psychological suggestion for a long time, so it must be induced for a short period of time to be successful. ”

Wu Yu said helplessly: "It seems that the only breakthrough point is gone, is it really an accident?" ”

Looking at Wu Yu, who was a little about to give up on himself, Feng Yan stretched out his index finger and said: "Don't be discouraged, although this case is full of unexpected halos, and even an unsolvable situation, but the "death insurance" that Cheng Fei bought after Zhou Yang's derailment and before the accident is indeed an indisputable fact, if she really did the killing of Zhou Yang, I think she is too crazy." ”