Chapter 1059: Lu Chuan’s Opinion

Lu Chuan can now be certain that the fingerprints on the black plastic bag belong to Gao Zhiyuan, and this is beyond doubt.

However, given Gao Zhiyuan’s income level, he couldn’t possibly afford Da Hong Pao tea costing tens of thousands.

Lu Chuan continued to report his findings.

"The fingerprints were extracted from the edge of the plastic bag handle, showing signs of excessive twisting force, indicating Gao Zhiyuan had carried this plastic bag."

If Gao Zhiyuan hadn’t carried this plastic bag, his fingerprints wouldn’t show such breakage.

"But according to current investigation clues, Gao Zhiyuan wasn’t in Tongzhou City at the time, having a solid alibi."

After discovering this, Lu Chuan couldn’t figure out what the key issue was.

What is the significance of the killer’s actions?

If the killer simply wanted to frame someone, there’s no need for such trouble.

The killer could replicate the framed individual’s fingerprints more intact on the black plastic bag.

If the framed individual has somewhat insufficient alibi, regardless of whether the police believe it or not, they would pursue it.

In this case, the chance of discovering the real killer would be much smaller.

However, the clues left by the Red-clothed Killer in the past 15 years have all pointed to people with solid alibis.

In this way, there’s no way to frame these people, thus failing to disguise the possibility of the Red-clothed Killer’s existence.

Moreover, the bodily fluids left in the victim contain extractable genetic information, which has been confirmed to mismatch with the fingerprint or footprint DNA found at the scene.

So why does the killer go through all of this trouble?

Li Donglin furrowed his brows as well.

Lu Chuan continued.

"Gao Zhiyuan has a clear alibi, but the residue of tea leaves worth tens of thousands was found inside the black plastic bag, what does this indicate?"

What does it indicate?

Given Gao Zhiyuan’s economic capability, he naturally couldn’t afford such expensive tea.

So whose tea is this?

Moreover, if these tea leaves are not Gao Zhiyuan’s, then whose are they?

And who placed the tea residue inside the black plastic bag that Gao Zhiyuan once carried?

"There’s another issue, which is Gao Zhiyuan’s residence location."

Lu Chuan operated the projector, displaying a map.

"Here is where we found the victim’s finger at North Second Lane on Jianguo Road, but Gao Zhiyuan lives at Hongsheng Garden District, which is on Beisheng Road, about 5 kilometers from North Second Lane on Jianguo Road."

After deriving clues through technical investigation, Lu Chuan conducted some logical analysis and came to interesting conclusions.

"Gao Zhiyuan’s residence is 5 kilometers from where we found the victim’s finger at North Second Lane on Jianguo Road. Could the other party really run such a distance just to throw a trash bag?"

Lu Chuan followed up with: "And if the trash bag wasn’t discarded by Gao Zhiyuan, who brought it over?"

Although Lu Chuan posed this as a question, he believes that considering Staff Member Gao has a sound alibi, it indicates that the trash bag Gao Zhiyuan once carried was used by someone.

"Lu Chuan, what is your conclusion?"

Li Donglin pondered over the problems Lu Chuan presented. On the surface, these issues seem unrelated, but they are crucial clues to the case.

However, initially analyzing these clues reveals they are not related, even showing some logical conflict.

Yet, had the Red-clothed Killer evaded capture for 15 years because of these seemingly conflicting and unrelated details?

In the Red-clothed Killer case, provincial halls and ministries sent many experts, mostly with criminal investigation backgrounds.

Honestly, from Li Donglin’s perspective, the previous experts sent by provincial halls and ministries were strong but weaker than Lu Chuan in field investigations.

Unlike typical technical criminal police, Lu Chuan possesses sharp insight into case-solving beyond just handling technology.

Lu Chuan often analyzes cases from a technical investigation standpoint, using it as a base for logical analysis and judgment.

This approach is quite rare, which Li Donglin believes is the main reason behind Lu Chuan’s high case-solving rate.

Typically, technical criminal police handle logistics work; after retrieving items from the scene, technical police perform analysis and feedback results.

Criminal police conducting the investigation utilize the technical analysis results directly.

Unfortunately, this leaves out a process of mutual exchange and challenge.

Often, field technical results and criminal police thought analysis do not completely align.

However, this isn’t an issue for Lu Chuan, whose strong technical prowess and investigational abilities merge for a 1+1>2 effect.

"I mean to focus investigations on all individuals potentially interacting with Gao Zhiyuan’s discarded trash bags."

From Lu Chuan’s perspective, regardless of the suspect, obtaining Gao Zhiyuan’s black plastic bag to place the victim’s severed finger inside was not accidental but planned.

The reason is simple: in the past 15 years, the suspect directed case clues to unrelated personnel.

These people are unrelated to the cases, having solid alibis, yet traces of them were found at crime scenes.

If only one or two cases exhibited this, it might be deemed coincidence, but 11 cases over 15 years cannot be coincidence.

The suspect must have been able to contact such situations concerning Gao Zhiyuan.

Additionally, Gao Zhiyuan and the victim both worked at Ai Family Supermarket; is this also coincidence?

Coincidence has the suspect randomly taking a black plastic bag 5 kilometers from North Second Lane on Jianguo Road and inserting the victim’s finger, yet the bag owners happens to be the victim’s co-worker, how is that possible?

If this is possible, then how do we explain previous cases?

Lu Chuan thoroughly studied the dossiers of the first 10 cases.

Though occurring during different periods with slightly different victim details and diverse crime scenes, many underlying similarities persist.