Chapter 1186: A Model of Forensic Reasoning (Part 2)

Chapter 1186: Chapter 606: A Model of Forensic Reasoning (Part 2)

Saying this, he turned his head to look at Jiang An and said, “Perhaps, just as Mr. Jiang said earlier, for Li Chuang, the main reason he hasn’t married or had children all these years is to seek revenge—this is a game of revenge.”

After finishing, everyone sighed slightly.

After a moment of silence, Jiang An spoke: “Director Hou, Mr. Chen, I have a suggestion, not sure if it’s feasible?”

As soon as he finished speaking, Qin Feng suddenly turned his head, his eyes full of yearning.

Jiang An said, “In this case, I think we should focus on the process between the first crime scene and the burial site.”

“Oh?” Qin Feng suddenly asked, “What do you mean?”

Both Director Hou and Mr. Chen were slightly taken aback, showing doubt in their eyes.

Then Jiang An explained, “In this case, I think there is one point worth noting.”

“That is the location where the three victims lived, distributed in different spots, and their times of death were also different.”

“So, from a physical environment perspective, the locations where the three victims were killed should not be the same.”

“Then, how did the killer transport the three victims to the burial site from different locations and times?”

“Not to mention the distance, just transporting bodies from location A to location B requires a transportation vehicle.”

“Moreover, a human body is not like a lump of pork or a duck, it is a large entity that absolutely requires a transport vehicle that can go unnoticed.”

“Given that Li Chuang himself is in the transport business, his white van could be the perfect disguise.”

Upon hearing this, Qin Feng hurriedly asked, “But so much time has passed since the case, are there still trace evidences?”

“Even if there’s some hair, it may not be testable.”

Mr. Chen also shook his head slightly: “Exactly, with so much time passed, we’ve got very little left to examine.”

After a brief pause, Jiang An said, “In this case, we found the three victims could not be confirmed to have open wounds, but their skulls should have suffered external impact.”

“Besides being hit with soft objects, the head injuries could likely cause a certain amount of bleeding.”

“Especially for Zhang Fei’s body, the head had a depressed comminuted fracture; from the degree of the fracture, I believe such a fracture could disrupt the local skull fracture fragments, very likely piercing the scalp and causing local blood vessel rupture.”

“So, if the victim’s head wasn’t placed on an absorbent object, there could be blood residue on the transport vehicle.”

“I believe this could become critical evidence for identifying him as the killer.”

Upon hearing this, Director Hou and Mr. Chen nodded in agreement, their exchanged glances indicating concurrence.

They found Jiang An’s suggestion very sensible.

This perfectly combines the murder process, injury results, transportation vehicle, and trace evidence.

However, just as they felt hopeful, Qin Feng asked again, “Mr. Jiang, even if there’s bloodstain, it could have been rubbed off.”

“They are in the furniture business, with frequent loading and unloading, wear is quite severe, even minor bloodstains could be wiped away.”

Hearing this, Jiang An smiled gently: “Mr. Qin, perhaps you haven’t kept up with the developments of information technology recently?”

“With our current Luminol Reagent, we can detect even extremely minute traces of blood.”

“Even if a drop of blood is diluted in an environment by 1,000 times or 10,000 times, it can still be detected.”

Upon hearing this, Qin Feng looked surprised: “Ah, really?”

“I remember Luminol Reagent could only show undetectable bloodstains, can it test even at this dilution?”

“Our Luminol in Guangling could only show mop dragged bloodstains, but once washed with water, it becomes invisible.”

Jiang An smiled: “Mr. Qin, that’s because technology is advancing.”

“Forget 10,000 times dilution, future scientific developments could make even 1,000,000 times dilution detectable by us.”

Upon hearing this, Qin Feng smiled, feeling hopeful about the case again.

Just because the timing of capture was inappropriate, key traces were missed, he feels deeply remorseful.

Now it’s not too late for remedial actions.

Immediately, he stood tall, saying, “Director Hou, Mr. Chen, Mr. Jiang, we must act quickly and test his van.”

“I’ll notify the lab immediately to bring out all the Luminol Reagent.”

Mr. Chen nodded: “No problem, but we must be mindful of one thing now.”

“What is it?” Qin Feng asked.

Mr. Chen continued, “Though he drives this van, we need to see if he owns other vans.”

“If he used another van, the results could be negative.”

Upon hearing this, Director Hou and Jiang An both nodded.

Jiang An said, “Yes, Mr. Chen’s point is very valid.”

“If we can test and find minute bloodstains, we can confirm this van as the transport vehicle.”

“If, as Mr. Chen stated, this van wasn’t used for transport, but another vehicle was, then the result might differ.”

Qin Feng quickly raised his hand and patted his head, saying, “See, I got carried away in the moment and was completely confused.”

“Alright, I’ll immediately check his records, see if he owns other vehicles—both vans and sedans, I’ll find them all, leaving none.”

Mr. Chen stepped forward, saying, “Go ahead, the case feels like it’s close to a breakthrough.”

“If we can find any bloodstains on the transport vehicle, I believe he will have no excuse left.”

“Even if he says nothing, with this evidence and his early motives, it’s enough to take him to court and have the judge convinced that he is the culprit.”

After saying this, Qin Feng immediately stood at attention and saluted: “Yes, Director Hou, Mr. Chen.”

“I’ll handle this immediately and ensure it’s done beautifully.”

“With three deceased, he absolutely needs a bullet.”

After finishing, Qin Feng quickly walked out of the interrogation building.

At this moment, Director Hou excitedly looked at Jiang An, saying, “Mr. Jiang, see, at a crucial moment, you broadened our thinking for this case.”

“Otherwise, we might really end up like ants on a hot pan, not knowing where to start.”

At this moment, Director Hou agreed: “As the first to transition from forensic to detective captain, Jiang An’s perspective fully reflects onto the case itself.”

“Exploring potentially existing key trace evidence from a forensic perspective is truly exceptional.”

“We’ve encountered many detective captains; they all solve problems from an investigator’s mindset.”

“Only Jiang An can connect the site, victims, case, and the killer into one, this four-dimensional logical thinking is truly beyond our reach.”

After being praised by the two, Jiang An chuckled, turning to Director Hou and Mr. Chen and saying, “You guys flatter me.”

“Forensics should be a profession of researchers in labs; I may not be a qualified forensic scientist?”

Director Hou laughed heartily: “That’s different.”

“In the past, forensics was all about dealing with corpses in the lab; now forensic experts should be present at first scenes, participating in case investigations and logical reasoning. You represent a typical example of horizontally expanding the forensic career.”