After returning from the scene, Lu Chuan immediately ran a fingerprint identification analysis on the second body in the system.

The result was the same as the first body; there was no target information in the system, and identity confirmation failed.

Yang Sen did a DNA comparison for the body, but it was more procedural, not expecting any substantial findings.

The system's comparison result was an unexpected surprise.

Rushing to the computer, Yang Sen quickly checked the comparison results.

Old Bai and Lu Chuan also put down their tasks and gathered around.

If this comparison was successful, the identity of the second body could be confirmed.

"Was it a match?"

As Old Bai approached, Yang Sen had already seen the results, but they were somewhat unexpected.

"It matched... but it also didn't match."

Lu Chuan moved closer to the computer and saw that there was indeed a prompt indicating a successful match with homologous DNA information.

However, the matched subject was the DNA information of the first body discovered yesterday.

"The DNA information of these two bodies is homologous?"

There are various types of DNA information matching.

For instance, identity confirmation verifies identity through DNA.

In addition, there is paternity testing and homologous DNA verification.

The former determines parent-child genetic relationships, while the latter determines sibling relationships.

Now, the result on the computer indicates that the bodies discovered yesterday and today share homologous DNA material.

The two are sisters.

"Let me inform Captain Qin of the comparison result."

Liu Guodong pulled the comparison report from the printer and went directly to report it.

Although the identities of the two bodies weren't confirmed, their sisterly relationship would significantly aid the investigation.

The scope of the investigation could be narrowed down further.

After a brief surprise, Lu Chuan got busy again.

The physical evidence collected this morning needed urgent analysis.

Lu Chuan also needed to collect trace evidence from the second body.

From the current clues, the construction site at Qinghe Amusement Park was certainly not the initial crime scene of the killer's operation.

The two were killed using the same method, suggesting it was the same killer, meaning the initial scene was likely the same location for both victims.

Comparing the trace evidence from the second body against the first might reveal new findings.

By the time Lu Chuan finished, it was already three o'clock in the afternoon.

"Master, I'm going to the forensics department to collect trace evidence from the second body."

Liu Guodong nodded, "Do you need our help?"

The trace evidence from the first body had been sent to the provincial technical appraisal center.

Director Song Jiangguo personally called the leaders of the technical appraisal center, so results should be forthcoming soon.

After all, the demand for trace evidence appraisal across the province wasn't high, perhaps only a few cases yearly.

Personnel over there were still available.

"No need, I asked Shen Yan to help yesterday," Lu Chuan glanced at the time, "Besides, they're doing an autopsy there today; I'll see if they're done."

The autopsy room had only one autopsy table, and Lu Chuan needed to wait for the autopsy of the first body to finish to collect trace evidence.

In the autopsy room.

Wang Changjiang just took off his white coat and was washing his hands.

Unlike Shen Yan, who was fully geared, Forensic Doctor Wang was much more casual during autopsies.

He usually wore only a single mask, didn't use protective isolation clothing, and only wore a couple of extra layers of gloves.

"Brother Wang, are you done here?"

Wang Changjiang turned his head, showing a big, toothy grin, "Routine autopsy, found a bit but not much, just finished."

"Oh?"

Though Lu Chuan wasn't a forensic doctor, he was interested in forensic findings, "Brother Wang, what did you find?"

"The subcutaneous tissue shows bruises; the deceased likely suffered some injuries before death, but the time passed hiddenly, so the injuries didn't reach the skin."

Shen Yan also removed her protective gear at this time, "Yesterday's victim had tape marks on the wrists and ankles, likely left by the killer during the crime."

The autopsy report had reached Qin Yong, but it wasn't very helpful.

In the autopsy, after opening up, we examine the thoracic, abdominal, and pelvic cavities.

All organs undergo visual inspection to determine the degree of decomposition and the possibility of poisoning.

Additionally, the organ's freshness level allows for a fairly accurate determination of the time of death.

The first body's time of death was around one o'clock the morning before yesterday.

After the murder, the killer immediately disposed of the body.

"Although the body was frozen on the outside, the stomach and organs hadn't completely frozen, and there were no frozen organ traces found during the autopsy."

Wang Changjiang shook the water from his hands, "Lu, are you here to collect trace evidence from the second body?"

Lu Chuan nodded, "Since we've done the first, we should do the second as well to see if there are any findings."

"Alright then, Shen will help you; I won't accompany you guys."

Wang Changjiang left, and Lu Chuan began to collect trace evidence from the second body.

Shen Yan had assisted once before and was now experienced.

Being a criminal detective is like this; in the first case, there's always a feeling of confusion.

But after solving many cases, it becomes second nature.

This is why many suspects are caught immediately after committing murder.

Criminal detectives spend their days dealing with criminals, but a murderer might only have one chance to encounter a detective.

Despite planning and rehearsing, there's no substitute for actual experience.

Serial murders are challenging to solve because once a killer isn't caught after the first murder, if they kill again and remain uncaught, they become familiar and experienced, making it harder to catch them.

Because the first body had just undergone an autopsy, the second body was temporarily placed on the floor in the corner.

The autopsy room had a body refrigerator, but this body was set to thaw for an autopsy, so it couldn't be placed in the fridge.

With some effort, Lu Chuan and Shen Yan moved the body to the autopsy table.

Every autopsy is no less than performing surgery for a doctor.

The smooth autopsy table had been meticulously cleaned and disinfected by Shen Yan.

This ensured the body wouldn't be contaminated again.

In the autopsy room of the criminal investigation team, moving a body is like moving any object.

But if it were at a funeral home... the feeling might be different.

"I'll start by sweeping with a UV inspection lamp."

Having gained experience from the previous day, Lu Chuan focused on the wrists and ankles of the body.

Sure enough, under the UV light, the tape binding marks became clearly visible.

Not only that, but on the inside of the left ankle, there was a half-blurred fingerprint on the tape mark, visible to Lu Chuan.

Though the fingerprint wasn't very clear, it was sufficient for fingerprint analysis.

Could it be the killer's fingerprint?

"Hand me the inspection lamp."

Shen Yan pried open the body's thigh, her emotions somewhat high.

If this indeed was the killer's fingerprint, the case might be solved!

Using Intermediate Fingerprint Collection Skills here was perfectly fitting.

Soon, Lu Chuan completed the fingerprint collection, but the more he looked at it, the more familiar it seemed.

It was as if he'd seen it somewhere before!

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