Chapter 567: Chapter 567: Lu Chuan’s Judgment

Lu Chuan continued to analyze.

"These two prints appeared in two different cases at different times and completely overlapped, indicating that they are definitely not incidental marks."

"I suspect that these are the fingerprints of the murderer. However, this person’s fingerprints are very unusual, lacking ridges, valleys, and other fingerprint features."

"Alternatively, it’s possible that this person’s fingerprints have been damaged."

"But in any case, these two cases can be investigated together!"

Lu Chuan’s discovery was extremely important.

First, from the perspective of evidence, the clue Lu Chuan found locked the suspect as a fugitive.

More precisely, it’s a fugitive, because back then in the 116 case in Qinzhou City, no suspect was identified, so there was no warrant issued.

It was a particularly significant case under the supervision of the ministry.

In the girls’ dormitory, five were killed!

What a heinous nature of crime!

Back then, the leader in charge from the provincial office took command, bringing together the best criminal investigation experts in the province, but they had no leads whatsoever.

It is said that the principal of Qinzhou City Vocational and Technical College at that time resigned due to the pressure, and many students were afraid to go back to their dorms at night.

The online discourse about the case back then was buzzing and rampant.

One can imagine how enormous the pressure was on the personnel handling the case at that time.

The most important thing was that after half a year of investigation, there was still no progress, and the case was eventually shelved.

No one expected that one of the murderers in this case was actually the murderer of the Qinzhou 116 case back then!

Second, Lu Chuan’s analysis of the footprints was more detailed than that of Tianzhou City’s Criminal Investigation Team.

Among the three suspects, there was a fairly detailed description of the main physical characteristics of two of them.

This provided more definitive conditions for narrowing down the range of suspects.

Another point was the fingerprint characteristic discovered by Lu Chuan.

The vast majority of people’s fingerprints have features like ridges and valleys, which can be categorized into three main types: loop, arch, and whorl.

However, there are a very few whose fingerprints naturally do not belong to any of these categories.

"Regarding the fingerprints of suspect number two, I am more inclined to believe that the fingerprints have been physically destroyed."

Lu Chuan further made a judgment.

Oh?

Li Donglin cast a puzzled glance.

"What is the basis?"

"Secretion!"

Lu Chuan replied categorically.

"After comparing the mark found in the kitchen of the massacre case with the mark on the wall in the 116 major case and found they matched, I conducted further analysis on the mark in the kitchen."

"This mark only had blood residue, but no oil."

"This indicates that the murderer’s finger had no oil glands, and the probability of this being a congenital condition is very low. I lean more towards it being an acquired condition."

The Crime Scene Investigation Team from the Tianzhou City Criminal Investigation Team nodded.

The sweat glands and sebaceous glands on fingers are actually very developed.

Some people naturally have sweaty hands, which means their sebaceous and sweat glands secrete more oil and sweat than normal, so their palms are constantly moist.

However, being born without sweat or sebaceous glands is something that, while not impossible, no one has actually heard of.

"Lu, is there anything else to add regarding suspect number 2?"

Lu Chuan shook his head.

Based on the results from the crime scene investigation, it appears that the three victims were each attacked by one of the three suspects.

Suspect number 1 slit the throat of the male victim, suspect number 2 killed the child, and suspect number 3 killed the female victim.

"Suspect number 3, male, height between 1.76 and 1.79 meters, weighs around 100 kilograms, has a hefty build, and is suspected to have many years of experience working as a chef."

Different professional groups have characteristics that can influence their body shapes due to occupational traits.

For example, chefs, due to standing for extended periods, often develop a distinctive habit in their footprints.

The angle between their feet naturally forms around 105 degrees, a habit acquired over time.

Moreover, chefs tend to shift their weight between their left and right feet while standing, which alternates.

The footprints left by suspect number 3 show obvious similar characteristics.

When killing the female victim, the angle between his feet while standing behind her was exactly 105 degrees, and as he moved, the footprints showed alternating weight shifts between the left and right foot.

Additionally, professions that require standing for long periods, such as surgeons, also share similar characteristics.

However, the typical footprints of doctors differ from those of chefs.

Although Lu Chuan’s analysis of the footprints was very detailed, it could not provide a definitive conclusion, hence he used the term ’suspected’.

It can be said that Lu Chuan obtained very important clues in this crime scene investigation.

With this, they can revisit surveillance cameras near the victim’s house for further investigation.

Those with similar characteristics can be put under focused investigation.

After listening to Lu Chuan’s analysis, the members of Tianzhou City’s Criminal Investigation Team felt a renewed sense of vitality.

People often say that the strengths of the task force lie in places like this.

The Tianzhou City’s Criminal Investigation Team is not lacking in capability, but they indeed hadn’t discovered any clues.

The judgment that the suspect could be a fugitive was something the Tianzhou City’s Criminal Investigation Team had actually considered as well.

However, since the suspect was a fugitive, capturing them wasn’t going to be easy.

If they knew where the fugitive was, they would have already captured them, and the original case would have been closed.

Therefore, even though the Tianzhou City’s Criminal Investigation Team had this judgment, they were unable to take concrete action.

But now it’s different. The task force judged the general physical characteristics of the three suspects based on the footprints.

This enables them to review the surveillance near the victim’s residence to see if they can trace the three suspects.

"Anything else?"

Lu Chuan shook his head.

He had only spent a little over two hours investigating the crime scene, so the information obtained was limited. Moreover, since more than half a month had passed since the crime, many traces at the site were no longer recoverable.

Lu Chuan was to next have an in-depth discussion with the crime lab from the Tianzhou City’s Criminal Investigation Team.

The three suspects had stayed at the victim’s home for a considerable amount of time, and during the course of the crime, they had humiliated the female victim.

So, did the three suspects leave any evidence inside the female victim?

On the other hand, did the suspects leave any hair or skin flakes at the scene?

Under normal circumstances, the suspects would definitely leave these clues at the scene. This should have been discovered by the Tianzhou City’s Criminal Investigation Team.

However, in the digital files Lu Chuan reviewed, there weren’t any traces indicating the processing of these clues.

This required further communication with the forensics team here.

Li Donglin’s attention then turned to the Tianzhou City’s Criminal Investigation Team.