Chapter 757: Clues

On the projection screen was personal information about Dong Jun.

Lu Chuan was examining carefully, studying each piece of information repeatedly.

According to the background investigation of Dong Jun, there wasn’t much connection between him and Qin Weiwei.

He ran a small renovation company, taking on some home renovation projects.

Although he didn’t earn much money, life was quite good for him.

"Dong Jun is known to be a loyal person, and those who work with him speak highly of him."

Chen Jiang continued to present the investigation findings.

"His company doesn’t have any permanent staff other than him; whenever he gets a renovation job, he assembles a temporary team."

"So when there’s nothing to do, he usually stays at home."

"Captain Lu, that’s the basic situation."

Lu Chuan nodded; the information was sparse, but it had some reference value.

"Captain Lu, do you suspect there’s something wrong with Dong Jun?"

Wang Zhaokai knew that Lu Chuan must have a reason for suddenly investigating Dong Jun.

"We found something at the scene, something very interesting."

Lu Chuan asked Gao Wenxiang to project what he had found earlier that afternoon onto the screen.

"This afternoon, I visited the scene of Qin Weiwei’s murder again with Gao Wenxiang."

This was considered a routine operation.

Crime scenes are often preserved for a long time.

Returning to the scene for multiple inspections during an investigation is a common practice.

Sometimes solving a case requires not just inspiration, but also luck.

Every inspection feels like turning the entire scene upside down.

But in reality, some things are always overlooked.

Just like when Lu Chuan visited the scene for the first time, new discoveries were made during the second visit.

The projected photo showed the set-top box in Qin Weiwei’s home.

"This is the set-top box for Qin Weiwei’s TV; it’s a device that combines TV signal and network signal."

"From the initial investigation, it seems that the person who killed Qin Weiwei was someone she was familiar with."

"So, is it possible that this familiar person had connected to Qin Weiwei’s WiFi signal at home?"

Lu Chuan operated the projection to display the next photo.

"This afternoon, at the scene, I cracked the data inside the set-top box and conducted a detailed analysis."

"I discovered something interesting, take a look..."

The video showed a series of mobile devices connected to Qin Weiwei’s set-top box at home.

"In total, six devices have connected to Qin Weiwei’s home’s WiFi signal."

"Besides one TV, there are five mobile phones."

"This afternoon, Gao Wenxiang has already conducted a preliminary investigation.

Among these five mobile phones, one belongs to Qin Weiwei herself, another to her ex-boyfriend Zheng Gaoxue, and two are from her friends who visited her house and connected to her WiFi."

"Then there’s one more phone..."

Lu Chuan flipped through the PPT again: "When we were at the crime scene today, this particular phone was still connected to Qin Weiwei’s WiFi."

"Dong Jun’s?"

Wang Zhaokai was surprised.

Gao Wenxiang chimed in: "We haven’t examined Dong Jun’s phone, but it should be his."

"Because after we discovered this today, we conducted repeated investigations in the upstairs and downstairs neighbors and across the hall."

"There’s no one downstairs, so no one could have connected to Qin Weiwei’s WiFi, and upstairs there’s an elderly gentleman in his eighties who doesn’t know how to use it."

"So that leaves Dong Jun’s across the hall, and when we visited, we noticed they didn’t have WiFi equipment."

"Could it be freeloading from the network?"

Someone raised the question.

"Good question. I was thinking the same thing, neighbors freeloading on the network is not uncommon, but when I checked the screencast history of Qin Weiwei’s TV..."

Lu Chuan turned the PPT, a list appeared.

"Qin Weiwei’s TV is a smart network TV that can screencast with a phone, as long as the TV and phone are within the same WiFi area."

"This is the most recent screencast record, and it’s dated the early morning of the day the case happened, at 3:30 AM."

"The play record shows the horror movie Ghost Knocks!"

"And the screencasting phone is none other than Dong Jun’s phone!"

Hmm?

Everyone understood the situation.

"Did Dong Jun lie?"

Yes!

According to Dong Jun, around 3:30 AM when the incident occurred, he heard screams and cries for help from across the hall.

Then, he knocked on the door of the apartment across, and inside Qin Weiwei said she was watching TV.

This presents a problem.

If this screencast came from his phone, then what was playing on the TV was also initiated by him.

Isn’t that lying?

Lu Chuan confirmed Chen Jiang’s question.

Moreover, he had a hypothesis.

"Qin Weiwei died from a fear-induced massive brain hemorrhage, leading to death."

"What we’re puzzled by is why Qin Weiwei was scared to death?"

"What did she see at that time, or what happened?"

"I suspect there are three reasons."

"Firstly, the words on the bathroom mirror: Return my life."

"According to her colleagues, Qin Weiwei left work quite late that day, after leaving her company, it was past 1 AM."

In fact, Qin Weiwei reported for work late because she met with Zheng Gaoxue in the afternoon before leaving home for the office.

"The letters on the bathroom mirror that the victim wrote only become visible when steamed by water vapor."

"Imagine, if Qin Weiwei saw these words on the bathroom mirror when she returned home to shower and the bathroom fogged up."

"At the same time, if a black box in the distribution box downstairs started working, causing the lights at home to flicker."

"And then suddenly a horror movie started playing on the TV: Ghost Knocks..."

"Could Qin Weiwei have been so emotionally disturbed by these factors that an old condition flared up, resulting in a brain hemorrhage?"

Lu Chuan’s speculation...

Is very plausible.

In this case, judging from the cause of Qin Weiwei’s death, it actually fits the characteristics of accidental death.

If the murderer hadn’t moved the body, the police might never have discovered that she was killed.

Firstly, the writing on the bathroom mirror, if Lu Chuan hadn’t been on a site survey, ordinary people wouldn’t have noticed it at all.

Secondly, the whole room was closed; generally speaking, this means Qin Weiwei locked the door herself, dying from a brain hemorrhage.

As for the time of death, brain hemorrhages differ from common deaths.

An acute brain hemorrhage doesn’t necessarily take life immediately.

A time process is required for this.

Generally speaking, there is a two to three-hour window.

If Qin Weiwei suffered a brain hemorrhage at 3:30 AM, but didn’t die until 5:00 AM, it wouldn’t be impossible.

Although what Lu Chuan proposed was only speculation, without substantive evidence, logically, it made sense.

"Captain Lu, should we make an arrest now?"