Chapter 49: The Need for Evidence
Chapter 49 requires evidence
"The murder of Yang Wenjing has been solved so far, and it can be said that a great breakthrough has been made. Fu Yuan concluded: "First of all, it is certain that there is indeed a third person at the scene of the crime, although the middle-aged man who delivered fast food to the victim has not been found so far.
Second, through the inquest of the car in Yang Yutang's name, that is, the car that drove out of the pig alley in the early morning of the crime, the test results of the biological samples found from it proved that the car had indeed transported the body of the victim Yang Wenjing.
Although Yang Yutang is dead, through the tracking of the car's driving track, whether it is to catch up with the alley late at night, or drive from the alley to the head of the rainbow bridge in the early morning, it is enough to corroborate the test results.
Third, the body of the victim Yang Wenjing was transported out of the Jinghua community in a special way with a strap on his body, and the disguised person seen in the surveillance video was very similar to the dead Yang Yutang in terms of body shape and gait.
Moreover, at the second scene with Uncle Xun, that is, the triangle garden that was used as the site of the corpse, according to the analysis results of the two sets of footprints left at the scene - about 1.75 meters tall and weighing no less than 90 kilograms, these are basically in line with the physical characteristics of the deceased Yang Yutang.
In addition, through a large number of interviews, no evidence of Yang Yutang's alibi was found between 11 o'clock on the night of the crime and half past 1 in the morning.
From this, we can basically conclude that Yang Yutang was one of the three people who appeared at the scene of Yang Wenjing's victimization.
Fourth, based on the autopsy report of the victim Yang Wenjing, from President Luo's personal experience of having a dissection and testing for 'unknown volatile extremely strong chemical reagent residues' sanitary napkins, as well as the encrypted folder in Yang Wenjing's notebook, sky-high fabric dolls, and other information, it can be concluded that the middle-aged man who has not been found so far to deliver fast food to Yang Wenjing is the person Yang Wenjing borrowed from Hu Yuan's IKEA and had a tryst with him.
Fifth, it was the person we haven't found yet who had a consensual sexual relationship with Yang Wenjing before his death.
The reason why I say this is because according to the time of Yang Wenjing's death given by the forensic doctor, it was not until after 11 o'clock that I drove to Yang Yutang in the pig alley, and Yang Wenjing was already dead when I arrived at the Jinghua community.
In other words, Yang Yutang, who arrived later, was just called to help dispose of Yang Wenjing's body. ”
Analyzing this in one breath, Fu Yuan stopped and looked at everyone, meaning to see who had anything to add.
"Sixth," Jia Wei spoke first. "Since Yang Yutang, who is the chairman of Dousheng Group and has billions of assets, was called to personally dispose of Yang Wenjing's body, that is to say, the person who had a tryst with Yang Wenjing, and the person we haven't found yet, has an extraordinary relationship with Yang Yutang. At least someone who can give orders to Yang Yutang.
However, in all our investigative work, we have never found such a person. ”
Jia Wei is right. Xun Jianguo nodded and said, "Seventh, since Yang Yutang was called in the middle of the night to help dispose of the victim's body, there must be contact information." And in Yang Yutang's call record that night, we didn't find any calls coming in during that time.
Does it mean that the person also contacted Yang Yutang through the Internet, or even through hacker login?
This can be inferred from the laptop found in the closet of Yang Yutang's villa and the folder encrypted with the same encryption program in the victim Yang Wenjing's computer. ”
After Xun Jianguo finished analyzing, seeing that no one added anything, Fu Yuan took it and said, "In this way, the problem comes." Who is that person that we have never been able to find? Through the above analysis, it is not difficult for us to sort out some characteristics of that person's personal ability and life relationship.
First, that person not only had an extraordinary relationship with Yang Wenjing, but also had an even more special relationship with Yang Yutang - he could even command and order Yang Yutang. In other words, the existence of that person is a point where Yang Wenjing and Yang Yutang's respective life circles overlap.
Second, the man was proficient in computer programming, even to the level of hacking that is difficult for ordinary people to achieve.
Thirdly, the man has very good economic strength.
Fourth, that person was thoughtful, and during the whole process of going to Hu Yuan's house to have a tryst with the victim, he didn't leave us the slightest trace that could be traced.
Fifth, that person should be a middle-aged man in his forties with a certain degree of education.
Sixth, the person has access to highly volatile chemical agents such as psychotropic hallucinogens, such as aphrodisiacs. It can be seen from this that he has the ability to evade the national customs. Or rather, there is a secret passage behind the man that allows him to obtain items from abroad that are prohibited by the state. ”
At this point in the analysis, the true identity of that person is almost revealed. The name "Yang Yuting" popped up in almost everyone's hearts at the same time.
"I know everybody thinks of the same person. After Fu Yuan looked around, the topic changed and said: "However, everyone also knows that we can't convict a person just by relying on our analysis and reasoning. What is most needed now is evidence. Therefore, let's use our brains again to find out which link was wrong in our early detection work. You know, no one can leave a clue after committing a crime. ”
"Team Fu, if you want to know what we overlooked, you might as well list the doubts about this case in everyone's minds. ”
Looking at Qi Zhibin, Fu Yuan encouraged: "Okay, then you come first." ”
Yang Yuting claimed that the last time he saw Yang Wenjing was at around 2 p.m. on July 22, and according to the memories of Yang Wenjing's classmates, two days before the incident, that is, on August 9, Yang Wenjing had said that he had gone to the school to find Yang Yuting. But Yang Yuting said that he left on July 25 and came back on August 10, so he didn't see Yang Wenjing.
However, according to the autopsy report, Yang Wenjing's menstrual leave ended three days before her death, that is, on August 8. At present, it can be basically concluded that the sanitary napkin with a sandwich found in Hu Yuan's IKEA was used by Yang Wenjing.
Since the menstrual holiday is over on August 8th, why is Yang Wenjing still using sanitary napkins on the 11th?"
Obviously, in Qi Zhibin's analysis, Yang Yuting has been recognized as the suspect who has not been found. So Fu Yuan followed his meaning and asked, "Do you suspect that Yang Wenjing went to his house on the day of the 8th, that is, Hu Yuanyi just left? And you met Yang Yuting there, and even had sex, so you left that sanitary napkin?"
"Yes. ”
"Well, that's two suspicions. The first is whether the dates of Yang Yuting's trip and return are as he said. The second is whether Yang Wenjing went to Hu Yuan's IKEA on the 8th, or on the day of the crime. ”
These two suspicions are indeed our negligence. Rong Liang said at this time: "We have been focusing on the video materials from the afternoon to the early morning of the day of the crime. In this case, let's just check it out on the 8th, maybe there will be an unexpected gain. ”
Fu Yuan nodded to Rong Liang and continued to ask Qi Zhibin: "What else?"
"There are also two seemingly contradictory conclusions in the autopsy report. First of all, it was determined that the direct factor causing Yang Wenjing's death should be mechanical asphyxiation. However, the report also appears that 'the deceased had sex with another person while he was conscious and physically and mentally happy'.
So there are two possibilities, one is that Yang Wenjing's death was an accident. We've probably all been exposed to this, or we've seen it in similar cases before. Some people, under high sexual arousal, will make some very out-of-the-ordinary movements, such as choking the neck of a female subject.
The second is that Yang Wenjing was deliberately killed by the suspect after having sex with him.
This must be clarified because the key point of the case is the motive for the killing. ”
Following Qi Zhibin, everyone present expressed their doubts about some details of the case. To sum up, the following articles have been added.
First, the identity of the owner of the bank card that the suspect used to order food for the victim on the night of the crime, and whether the car accident that caused his death was coincidental or man-made.
Second, was it the suspect's idea to abandon the victim's body in the bustling triangle garden, or was it Yang Yutang's improvised idea?
If it was the suspect's idea, what was the purpose of his unusual behavior?—— or was it a deliberate provocation?
After everyone's careful analysis, it was finally determined that it should be diverted. That is to say, it was the suspect who deliberately asked Yang Yutang to throw the body into the Triangle Garden, thus pushing Yang Yutang into the police's sight.
This can also be corroborated by the notebooks found in the closet of Yang Yutang's villa about the videos of the three tattoo cases, as well as past bank records.
In this way, it is logical to explain the real reason for Yang Yutang's assassination - killing people and killing people.
However, in the end, a mystery that has not been solved is: why did the suspect leave a folder encrypted with the same encryption program in the laptops of Yang Wenjing and Yang Yutang?
If it is the result of the suspect's negligence, it is completely inconsistent with the impression that the suspect has left on all members of the serious crime team from beginning to end.
If the suspect did it on purpose, then what was his real intention?