wavenovel Chapter 1316 1 Designating Heaven and Earth
Chapter 1316 1 Designating Heaven and Earth
Chapter 1316 One Finger Can Determine the Universe
Jiang Yuan led Liu Jinghui, running two kilometers forward and 2000 meters backward, but still found nothing.
Seeing this, even the two of them lost confidence in finding any traces at the scene. Liu Jinghui, who didn't need to worry about it, simply treated it as a walk, slowing down his pace, and also advised Jiang Yuan, "If you can't find it, don't bother looking. So much time has passed, some traces might not even remain, not to mention, robberies these days don't necessarily involve fighting."
“Zhang Xianyao’s nose is broken,” Jiang Yuan said.
“Even if your nose is broken, it doesn’t necessarily mean you’ll fight back. Kids these days don’t have any fighting experience. They don’t know how to fight. They might just take a few punches and then obediently hand over the money.” Liu Jinghui shook his head as he spoke: “The problem is, why rob a 17-year-old boy? Girls and old men and women passing by are usually richer and easier to rob.”
Jiang Yuan smiled and said, "This brings us back to the original theory."
The two sides had this kind of discussion during the initial case analysis meeting. Now, having removed the extraneous details, they have returned to the original perspective.
Liu Jinghui, on the other hand, became interested and felt that this kind of case discussion that could return to the basics suited his taste better.
After a moment's thought, Liu Jinghui said, "Actually, we've already pretty much figured out everything about this case."
"Oh? What do you say?"
"We know that the cases occurred within a roughly one or two-hour period, right?"
"It depends on which angle you calculate it from. If we start from the time Zhang Xianyao left the school until the time of his death, that's the broadest timeframe. If we calculate it a bit longer, it would be about 8 hours. If we calculate it until his cell phone lost signal, it would be about 5 hours. If we include the time it took for Zhang Xianyao to walk from the school to the river, we can shorten the time a bit."
"Is there such a large gap between the time of death and the time the phone lost signal?"
"The longer the body is submerged in water, the more the time of death is affected. We need to be more lenient in our calculations." Jiang Yuan did not explain the reason. In fact, for similar bodies, it is already very difficult to accurately determine the time of death within half a day. To be more specific, we often need to use some special detection methods, such as pupil examination, but even then, they are not necessarily very accurate. We still need to be more lenient in our calculations.
Liu Jinghui nodded in agreement, then asked, "Then let's calculate it as if the phone lost signal. However, Zhang Xianyao lost signal near the school; if that can be explained..."
"Didn't you just say that the case was almost solved?" Jiang Yuan didn't let Liu Jinghui analyze further. There were too many reasons why the phone and the person could be separated, and everyone had discussed them before. Even if Liu Jinghui gave a reasonable explanation, it was impossible to include all subsets.
Liu Jinghui chuckled and shook his head, saying, "I'm getting stuck on this again. Well, let's put it this way: we now know the approximate time and location of the victim's death. We don't really need to worry about Zhang Xianyao's phone anymore. Let's just find all the phone users who appeared at the crime scene during this period and question them. There must be a murderer among them. Maybe there are even eyewitnesses."
"If the murderer had a cell phone with him." Jiang Yuan's logic was sound, and what he said was indeed a possibility.
Just as the function of fingerprints was already widespread in the 80s and the function of DNA is well known, the ability of mobile phones to be located is not news among ordinary people. It's not surprising that someone from Changsha would take precautions against robbery.
“That makes sense.” Liu Jinghui then changed his perspective, saying, “However, if the murderer didn’t have a cell phone, the possibility of premeditation is very high. As we said before, there’s no need to rob a 17-year-old male. Zhang Xianyao is quite tall, probably around 1.8 meters.”
“From that perspective, that’s correct.” Jiang Yuan followed Liu Jinghui and strolled along the riverbank for several hundred meters. Seeing the slight changes in the surrounding greenery, he seemed to wake up and said, “Indeed, if we screen through them and don’t find any suspects, then we should suspect that the murderer has some kind of grudge or entanglement with Zhang Xianyao.”
"Yes."
"The core issue is how to quickly and accurately screen all these mobile phone users. This is a school, and within a few hours, there are probably more than a thousand mobile phones connected to several nearby base stations. It's unrealistic to take statements from them all..."
“Robbers are likely to have prior convictions. As for murder, as we just discussed, the perpetrators are probably acquaintances, with some kind of grudge or collusion.” Liu Jinghui summarized, then said, “Ask them and see what they have to say.”
His approach was very much in line with the methods of detectives of the previous generation. In an era before fingerprint identification, solving cases through confessions was both a characteristic of the times and a necessity. Of course, many people today are still "forced" to solve cases in this way.
"I think we can revise it again. We can sort the time the cell phone signal stayed at the scene. The longer it stayed, the higher it should be in the ranking. The murderer beat the victim continuously. Even if it was Ip Man, no matter how fast he beat the victim, it would still take much longer than a normal passage of time. If we sort it, the murderer should theoretically be at the top." Jiang Yuan briefly summarized the autopsy results and immediately offered a usable approach.
Liu Jinghui nodded repeatedly: "That's good. The site is only 200 meters long, and it can be walked over in a few minutes normally. Those who stay longer can also ask the reason!"
“That’s right. Hmm, the area around the point of impact can actually be narrowed down a bit, but 200 meters is fine. The two people don’t necessarily fight right next to the point of impact; it’s not unusual for them to be a hundred or two hundred meters apart…” Jiang Yuan spoke more casually, and then said, “Let’s run through it once following this idea. If it doesn’t work, we can increase the area around the point of impact by one level, 1000 meters. We can sort the time spent within that area and check the order of the previous ones. It won’t necessarily take much more effort.”
"Great, great." Liu Jinghui felt that he and the giant dragon were working together incredibly well, and he felt that the case had already been solved.
Jiang Yuan then picked up his phone and began making arrangements for Wang Chuanxing.
When it comes to cell phone signal base stations, Wang Chuanxing is much more knowledgeable than Jiang Yuan; he only needs to explain a little bit to make it clear.
While taking notes in his notebook, Wang Chuanxing complimented, "It's all thanks to Captain Jiang that you pinpointed the victim's location in the water. This limits the number of phones that passed by..."
Jiang Yuan hummed in agreement a few times and hung up the phone. He then saw Liu Jinghui walking up to a pavilion and buying milk tea.
"Let's eat something for young people too. Come on, it's on me today." Liu Jinghui was in a great mood and prepared to feed the dragon. He also waved to Mu Zhiyang and Wen Ming behind him, calling them over to choose some food.
With the case making progress, everyone was in good spirits, smiling as they crowded inside.
Just then, a male voice came from across the pavilion: "Honey, I'm not lying to you. We just helped beat them up a few times that day, but look at the situation now, the police have arrived. I'm going to find a place to hide for a while, and I'll come back when things calm down. Or, why don't you come with me?"
"Where to go?" a woman's voice came.
"I don't know, let's just go with the flow. We'll take the train directly. Didn't you want to go to Yunnan and Guizhou? Let's travel there together. But if we want to have a good time, we'll need to scrape together some money."
"How do you do it?"
"Doesn't your mom usually keep a lot of money in her shop?"
"That's the sales revenue!"
"Oh well, let's just take one day's revenue and talk to her about it later. I'll even sell the electric scooter. Let's go all in!"
Upon hearing this, the four police officers present were completely baffled.
Jiang Yuan stretched his finger forward, and his eyes met Mu Zhiyang's.
Mu Zhiyang's eyes widened, he pulled out a gun with one hand, grabbed Jiang Yuan and pulled him behind him, and Wen Ming behind him also silently drew out a gun the size of a bowl and pulled the safety off without hesitation.