Chapter 321 Logical Analysis
Xia Yu hesitated and said, "Forensic Doctor Tang, how about I take the report to Captain Pan first?"
Zhou Yi said directly: "No hurry, your Captain Pan will go to see your director."
"Oh, I see."
"Officer Xia, please let me take a look, so that Teacher Tang doesn't have to tell me about it again. She's worked hard enough."
"Oh, okay." Xia Yu quickly handed over the autopsy report.
Tang Wenli, who was sitting next to him, picked up the cup and took a sip of water, smiled with a slight appreciation and said nothing.
Zhou Yi looked at the autopsy report carefully. It could not be considered a formal report, but it was more detailed than the preliminary report, probably because Pan Hongjie was pushing for it.
From Tang Wenli's tired expression, it was clear that she must have been performing the autopsy non-stop since yesterday.
In this report, a preliminary autopsy had been performed on the male corpse, but not on the female corpse.
It probably contains several important information.
1. The wound on the female corpse's back completely matches the shape of the blade of Li Youqiang's Tibetan knife.
In other words, it can be confirmed with 100% certainty that this knife was the murder weapon used to kill the female corpse.
However, whether the knife wound or the strangulation mark on the neck was the fatal injury still needs to be confirmed by an autopsy. However, based on reasonable inference, it should be the knife wound.
Second, male semen was found inside the female corpse, and it was from two people.
Considering that the female corpse had no underwear on her lower body, this result was actually not surprising. Zhou Yi had vaguely guessed it at the time.
But it is quite intriguing that the semen of two people, not three, was found in the body.
Due to the lack of DNA technology locally and the long time interval, Tang Wenli was unable to analyze the extracted samples through normal technical means.
That is to say, it can only be confirmed that there were two people involved, but it cannot be determined whether it was from the male deceased and another person, or from Fu Daqing and Li Youqiang.
Third, the skull sutures of the male corpse were completely closed, which usually occurs after the age of 50. Of course, the report also clearly pointed out that there are large individual differences, so it is only for reference.
However, based on this point, the age range of the initial judgment has been narrowed down, making it more consistent with the car owner Zheng Guangming.
Fourth, there were no external injuries on the male corpse. After the autopsy, it was confirmed that the cause of death was sudden cardiac death, and the deceased had severe coronary artery stenosis.
Therefore, the male deceased died of illness rather than being murdered.
In addition, Tang Wenli detected two drug components in the male deceased's body, one of which was nifedipine, a common antihypertensive drug.
The other is sildenafil, commonly known as Viagra.
Of course, the autopsy did not find any necessary connection between sildenafil and the deceased's sudden cardiac death.
The rest is some routine autopsy information.
Seeing Zhou Yi finished reading, Tang Wenli asked, "What do you think?"
Zhou Yi said, "Teacher Tang, your autopsy report, combined with the information Captain Pan and his team just found, basically infers that the male deceased is Zheng Guangming, a 50-year-old local businessman."
"The deceased woman and he were likely involved in an illicit relationship. Considering the prevalence of chaotic private lives among local aquaculture bosses, it's likely she was his mistress."
"Zheng Guangming took aphrodisiacs, which means there is a high possibility that he had sexual intercourse with the deceased woman."
Tang Wenli asked curiously: "Why couldn't he have died before having sex?"
"Because if Zheng Guangming died suddenly before or during sex, the woman would definitely call the emergency number immediately. Even if the murderer attacked and took them away during the process, the ambulance would find no one at home and would call the police, so it can only be afterward."
"At Zheng Guangming's age, he would have felt exhausted and fallen asleep immediately after having sex, otherwise he wouldn't have been able to resort to drugs. It's likely that she died suddenly during her sleep, and then the two murderers broke in, killed the woman, and buried her body. As for the details, we can't accurately infer them right now. We need to find the crime scene and investigate. And the red car found today might not have been driven by Zheng Guangming, but rather bought by him for his lover."
Xia Yu, who was listening intently, asked, "Why did Fu Daqing and Li Youqiang want to kill Zheng Guangming?"
"Based solely on the social relationships of Fu and Li, they likely had no connection with Zheng Guangming. They also had no complicated emotional entanglements, which rules out any connection between them and the deceased woman."
Zhou Yi said seriously, "So the most likely scenario is hiring a killer."
"Hiring someone to kill someone?" Xia Yu and Tang Wenli were both a little surprised.
The problem that Zhou Yi had been unable to figure out gradually became clear through the clues in the past two days.
At first, he always thought that Fu Daqing was dragging Li Youqiang to seek revenge, and the target of murder was Jiang Wei, who had cheated him out of all his wealth five years ago.
So he could never figure out one question: how could Fu Daqing know Jiang Wei's whereabouts after more than five years.
Moreover, Zheng Xiaojun confessed that Fu Daqing paid him to help kill someone, which is consistent with Li Youqiang's boasting to his family about earning 10,000 yuan.
So Li Youqiang was not hired simply out of brotherhood, but was hired by Fu Daqing.
But Zhou Yi had only confirmed that Li Youqiang was hired, and he didn't think that Fu Daqing was also hired, because he thought Fu Daqing's target for coming to Anyuan was Jiang Wei.
Even after the two bodies were found in Xiaoqiushan Park yesterday, Zhou Yi actually had doubts about the possibility that Fu Daqing and Li Youqiang had killed the two people.
The reason was simple: the Tibetan knife that was picked up nearby.
Zhang Xianglan said that Li Youqiang liked the Tibetan knife very much, thinking it was an antique, and would not let anyone else touch it.
It is really illogical to throw such a valuable knife, which can easily expose one's identity, directly near the burial site.
Even if it was dug out from the soil where the body was buried, it would still be more reasonable.
He even suspected at the time that someone wanted to use this hidden knife to deliberately frame Fu and Li and kill someone with a borrowed knife.
It may have been stolen from Li Youqiang, or Li Youqiang himself accidentally lost the knife.
However, after discovering the red car today, Zhou Yi analyzed to Pan Hongjie that the two groups of murderers could not be the same group of people.
Then, the existence of Jiang Wei was confirmed in the repair shop, and the car was the first crime scene where Li Youqiang was murdered, and there was a possibility that Li Youqiang's body was hidden in the trunk.
It allowed Zhou Yi to break his previous fixed thinking.
Li Youqiang died later than Zheng Guangming and the other two, so the murder of these two people could not be related to revenge on Jiang Wei.
Add to that the fact that Zheng Guangming was rich and had a complicated relationship with a man and a woman, and the crime of hiring a killer could be established.
However, further investigation is needed to find out who paid Fu Daqing and Li Youqiang, two outsiders, to kill Zheng Guangming.
As for Jiang Wei, he must have met him by chance after Fu and Li committed the crime, or found out the man's whereabouts through other channels and then carried out revenge.
Once a murderer has killed someone, he will develop a criminal mentality. Killing one person is killing, and killing several people is also killing. This is a valve effect, just like a water pipe with the valve opened.
It’s just that most non-psychopathic murderers rarely have enough motive to commit continuous crimes.
Once they start committing repeated crimes, they will basically develop into a serial killer.
Fu Daqing had sufficient motive for committing the crime: revenge.
It’s just that some unexpected situations may have occurred in the middle, resulting in Li Youqiang being killed and Fu Daqing running away.
Pray that Jiang Wei can be captured successfully tomorrow so that we can find out what happened through interrogation.
The whole outline of the case has become much clearer.
Zhou Yi did not reveal all his thoughts, but tried to make a concise analysis. However, it still left the two people in front of him astonished.
Zhou Yi said, "Oh, by the way, Mr. Tang, Fu Daqing's ex-wife said he suffers from asthenospermia. Can you use this as a starting point to confirm whether Fu Daqing sexually assaulted the deceased woman?"
Tang Wenli shook her head. "If the sample is within 72 hours of leaving the body, we can still do a sperm survival test to determine its survival rate. But after such a long time, being able to distinguish between two people is already the limit."
"Well, your opinion will definitely prevail in this regard."
Tang Wenli stood up, stretched her neck, and said, "Okay, I've listened to most of the case analysis. You guys can go and get busy. I have to hurry up and continue the autopsy. Oh, I really don't want to be alive. It's better to have a leisurely job."
Zhou Yi and Xia Yu left the forensic room with the autopsy report.
On the way back, Xia Yu couldn't help but say, "Officer Zhou, no wonder Captain Pan asked me to learn from you. Just now, listening to your analysis of the case, I felt like everything had suddenly become clear. This case had us at a loss before."
Zhou Yi said a few humble words, then saw Chen Dejiang walk out of the office and asked them, "Where's Captain Pan?"
"I'm going to see Director Guo."
"I just contacted Zheng Guangming's company, and they said he hasn't been to the company for over a month, and they don't know where he went."
Zhou Yi frowned. "The boss has been missing for over a month, and no one called the police? Where's his family?"
"I called, but no one answered."
A big boss has been missing for more than a month, and no one has called the police. Isn't this too unreasonable?
Zhou Yi said, "Looks like we just have to go over and investigate."
As he was speaking, Pan Hongjie walked over quickly, his face even uglier than when he left.
It seems that he probably didn't hear anything good from his leader.
However, Pan Hongjie didn't say much. Morale is the most important thing at this time, and repeatedly emphasizing pressure may be counterproductive.
After learning about the autopsy results and the situation of Zheng Guangming's company, Pan Hongjie called everyone together for a quick and decisive meeting.
There are two core points.
First, in the operation to capture Jiang Wei tomorrow, all personnel must be armed and must capture this person alive.
Second, focus on investigating Zheng Guangming’s situation.
When the meeting ended, another day had almost passed and it was dark outside.
Pan Hongjie waved at Zhou Yi and said, "Zhou Yi, don't participate in the operation to arrest Jiang Wei tomorrow."
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