Chapter 36 Hidden Clues
Chapter 36 Hidden Clues
Because Peng Jun died from a fall from a height, resulting in a fractured skull and fragmented brain tissue, processing such a body would normally be much more difficult. However, after conducting a preliminary examination, the forensic experts at the identification center discovered some clues.
They discovered an extremely small calcification feature in Peng Jun's cerebral cortex tissue. After extraction and analysis, it was confirmed to be a neuronal calcium overload deposition caused by high-frequency electrical stimulation.
Using this as a sample, and with the help of electron microscopy and auxiliary identification instruments, more than seventy calcium overload deposits or signs were subsequently discovered.
Next, the brain structure of Peng Jun was reconstructed through 3D modeling. The deposition points were located and marked on it. Then, based on their location, the corresponding skull was carefully examined, and some very small crystals were extracted.
In addition, very fine, pinpoint burn marks were found on the scalp tissue corresponding to the outer side of the skull.
At this point in the investigation, not only were significant discoveries made, but they also largely corresponded to the situation described in the commission form.
Therefore, the forensic experts at the identification center used this as a reference and conducted a more detailed and targeted examination of Li Yunxiang's body, finally finding more than a dozen calcification deposits in her cerebral cortex.
Compared to Peng Jun's body, Li Yunxiang's brain had far fewer calcification deposits, and each deposit was much smaller, amounting to nothing more than a drop in the ocean compared to the entire cerebral cortex.
Without Peng Jun's autopsy results as a reference, finding these dozen or so abnormalities would have taken an immense amount of effort. In fact, even the process of discovering the first calcified deposit on Peng Jun's body involved a considerable element of coincidence.
Forensic examiners also discovered that both men showed signs of localized brain atrophy, albeit mild, but considering their age at death, it was classified as a significant abnormality. Comparatively, Peng Jun's atrophy was more severe.
Li Yunxiang died from irreversible cardiac arrest caused by generalized tonic-clonic seizures. The forensic center had no objection to this conclusion, but added a more definitive conclusion: the triggering factor was a sudden epileptic-like discharge, which was strongly related to the abnormal brain conditions found in the autopsy.
After explaining the situation, Xin Long flipped to a page of documents and placed it on top, saying, "Those tiny crystals were also extracted from Li Yunxiang's skull. This is the analysis and testing report for them. Their main components are consistent with the characteristics of carbon nanotubes, but their properties are significantly different from those of conventional materials of this type."
Yu Zhen picked up the page of information and looked at it, but found some parts incomprehensible, so he asked directly, "What exactly is the difference?"
"Simply put, before it is destroyed, it is longer and more resilient, like a needle, and has good electrical conductivity. If used with specific instruments or tools, it can penetrate the skull."
Xin Long explained to the team leader, "At the same time, because it is small enough, and human tissue has elasticity and self-healing ability, the tiny wound caused when it is inserted can heal quickly, so it will hardly leave any marks on the scalp."
Wei Hongbo gleaned more from this, pointing and asking, "It says here that the locations where these crystals were extracted from the skulls of the two victims were highly similar. Can we conclude that the same instrument or tool caused these changes in them?"
Xin Long said, "The assessment center's opinion is that they can at least be considered to be the same type of instrument."
Wei Hongbo nodded. They had been trying to find a connection between Li Yunxiang and Peng Jun, two completely unrelated people, and this analysis and testing report provided direct evidence.
He flipped through those pages of material and asked, "Why isn't there any further conclusion?"
"The cause of Li Yunxiang's death is listed above; it can be considered to be related to the brain abnormalities found during the autopsy."
That's not what I meant.
"So you mean conclusions like using brain-computer interfaces for information implantation?"
"yes!"
"There are no precedents to follow, and we haven't obtained any relevant physical evidence, so how can they draw conclusions?"
"It just feels like something's missing."
"At least all the tests and analyses conducted by the forensic center support your hypothesis. Isn't that enough? The relevant physical evidence still needs to be obtained during the investigation!"
"Director Xin is right!" Yu Zhen took out his cigarette case and offered cigarettes to the two men. "Wei Da, if you handle this case well, it will become a typical case that can be used as a reference."
Wei Hongbo took the cigarette, lit it, and asked, "Director Xin, do you have any ideas or suggestions to offer?"
"I've never dealt with these two corpses before, so what advice can I give you?" Xin Long said, exhaling a puff of smoke. "I'm a complete novice when it comes to brain-computer interfaces and such. You should consult an expert in this field."
Wei Hongbo nodded: "Okay. Yu Zhi, I'll go down now."
Yu Zhen waved his hand, indicating that he should do as he pleased.
As Xin Long watched Wei Hongbo walk to the door, he suddenly remembered something: "Wei Da, I did a preliminary examination of Li Yunxiang's body, but because it had to be sent to the identification center, the autopsy wasn't completed, so I didn't fill out the report. There were noticeable changes in skin texture on her left neck and collarbone, indicating that she had practiced the violin for a considerable period during her teenage years, and had also practiced within the last six months. I don't know if this will be helpful to you."
Wei Hongbo silently made a note of it and nodded, saying, "Okay, thank you, Director Xin."
……
……
When Wei Hongsi arrived at the company, he was quite surprised to find that his attendance status for the morning was "field work". Upon checking the approver, he saw that it was none other than Yu Sheng, the department director.
His trip to the GG filming location was a spontaneous act, taking up his own time off, and therefore he did not report it to his superiors.
At Zhiwei Technology, there is no overtime pay; overtime is usually compensated with time off in lieu. However, outstanding work performance and results are reflected in performance-based pay and bonuses.
So after Yu Sheng made the adjustment for him, it was equivalent to him working all morning, and he could still apply for time off in the future.
This was clearly a sign of his superiors taking care of him. However, from a purely work perspective, there wasn't really a problem. Gathering clues to assist the police in solving the case as soon as possible would better protect the company's interests and also aligned with his assigned tasks in this emergency response team.
However, from another perspective, since it is a field mission and no prior notice was given, it is necessary to report to the supervisor afterwards, otherwise it would be breaking the rules.
So when it was time for work in the afternoon, Wei Hongsi went to Yu Sheng's office and gave a detailed account of what had happened that morning.
It's not appropriate to go into too much detail regarding matters related to the case investigation. However, these details are not of much concern to Zhiwei, at least not at the moment.
After listening, Yu Sheng expressed his approval and added, "There's a meeting this afternoon, so please keep an eye out for the information."
RNP