Attending ex-girlfriend's wedding, arresting the groom's officer on the spot

Surveying the office now.

"Lu Chuan, are you sure this fingerprint must be Zhao Zhijun's?"

It is certain that the murderer decomposed Yang Qianqian's body on the plastic sheet found in the kitchen.

There were not only blood stains on it, but also some unprocessed minced meat.

Zhao Zhijun's fingerprints were found on the plastic sheet, which was important evidence to identify the other party as the murderer.

Therefore, when he found that the main words did not correspond, the timeline did not match the entire case process, and there were problems, Zhang Hui immediately went to the field investigation office for verification.

"There is definitely no problem with the fingerprint identification analysis."

The black plastic sheet where Yang Qianqian's body was decomposed is important physical evidence, and the fingerprints found on it are very clear.

When Lu Chuan conducted identification and comparison, there was no matching target in the fingerprint information database. At that time, the current investigation team had already listed the owner of the fingerprint as an important suspect.

After Zhao Zhigang was arrested, the other party's new fingerprint information was collected immediately, and it only took a few minutes for the comparison to be successful.

Lu Chuan was [-]% sure of this.

Zhang Hui frowned even more tightly now.

"This...isn't right."

"What's wrong? Tell me?"

Then, Zhang Hui explained his doubts to Lu Chuan.

"If Zhao Zhijun is really the murderer, why did he insist that he saw Yang Qianqian on Thursday after he killed the person on Wednesday when I interrogated him?"

"The other party remembered the time wrong?"

Zhang Hui shook his head: "This is unlikely."

"The other is the time for Zhao Zhijun to destroy the body and eliminate all traces."

"According to Zhang Meili, Zhao Zhijun went to the foot massage shop on Thursday night, and was with Zhang Meili from around 3 pm on Friday to Saturday morning."

"But judging from the readings on Yang Qianqian's water meter, there is enough water on Thursday night and Friday night."

"That is to say, the murderer was actually disposing of Yang Qianqian's body on Thursday night and Friday night."

"If Zhao Zhijun and Zhang Meili didn't lie, does that mean... more than one person committed the crime?"

After hearing Zhang Hui's doubts, Lu Chuan also frowned.

After Zhao Zhijun was arrested and successfully matched his fingerprints, Lu Chuan once thought that the case was completely solved.

But now it seems that the case is not that simple.

"Because the housekeeper cleaned the room before reporting the crime, many clues were destroyed."

This is the biggest difficulty encountered in this on-site investigation, because the cleaners have already mopped the floor, and the footprints left by the murderer have long since disappeared.

"But there is definitely no problem with the fingerprint comparison."

"Zhao Zhijun said that he had helped buy the black plastic sheet before, so his fingerprints were on it."

at this point……

"That's certainly a possibility."

"And the contradiction in the timeline you mentioned actually has some questions in our current investigation. Since Zhao Zhijun left fingerprints on the plastic sheet, why are there no fingerprints on the murder weapon?"

Did you know to wear gloves when you killed someone, but didn't wear them when you handled the body, so you left fingerprints?

"Can you determine when the fingerprints were left?"

Lu Chuan waved his hand: "There is no such technology."

Lu Chuan was playing with criminal investigation techniques, not criminal investigation metaphysics.

While the two were chatting, the office door opened and it was Lao Chen from the second operation team.

"I got the surveillance video of the Pig Trotters shop. Zhao Zhijun didn't lie."

Ok?

Zhang Hui was stunned. Didn't he lie?

I really didn't lie, but...how is this possible?

"Lu Chuan, just watch it on your computer." Lu Chuan nodded. He knew that this was the surveillance video that Lao Chen brought back from the pig's trotters shop on the 8th floor that Zhao Zhijun mentioned.

If the existence of Yang Qianqian is really discovered in the video, then all the previous work may have been wasted.

Because the time of death of the deceased... was wrongly judged.

When the video was played, although the picture was not particularly clear, Zhao Zhijun's profile could still be clearly seen in the surveillance corner.

The person opposite him could only see his back and not his face. However, a moment later, when the person opposite Zhao Zhijun stood up and went to the bathroom, his face was just facing the camera.

Yang Qianqian!

It’s really Yang Qianqian!

Lu Chuan frowned, how could that be possible?

This time, the forensic doctor did not go there at the beginning to determine the time of death of the deceased. It was made by the current investigation team.

Specifically, it was the time of death judgment made by Lu Chuan.

There are many bases for Lu Chuan to judge the time of death.

There is a very important relationship between the decay of human body fat and organs after separation and time.

And the little finger found in the sewer.

Depending on the degree of corruption of the fingers, corresponding judgments can also be made.

Finally, there was the blood stain found in the kitchen.

Whether it is the black plastic cloth ax or the color of the blood stains on the chopping board, the time of death of the deceased can be judged.

Last Wednesday, that was a sure thing.

But such a certain time of death seemed a bit ridiculous in front of the surveillance video that Lao Chen got back.

How could the person be dead when he was standing there alive?

Could it be that I did something wrong?

Do not!

Absolutely impossible!

Lu Chuan was quite confident in his own judgment of the time of death.

In other words, even if an error occurs, it should not occur for as long as a day.

Lu Chuan paused the video and pulled out the photos taken at the scene.

Ax, chopping board, plastic sheet...

After the blood appears bright red when it leaves the human body, it will turn brown in a short period of time, and the longer the time, the darker the color.

This is the result of the oxidation of iron ions in the blood, and as time goes by, the degree of oxidation becomes higher and higher.

The color of blood will also change from bright red to dark red, deep red, brown, earthy brown, and black.

The color of blood varies greatly at different time stages.

Most people can't see it, but as a detective on the scene, how could Lu Chuan make mistakes in this regard?

Now looking at the color of the blood on the murder weapon, Lu Chuan could tell at a glance that the approximate time was last Wednesday. There was no mistake!

However, Yang Qianqian's appearance in the surveillance camera on Thursday could not be fake.

what happened?

"Lu Chuan, do you want to re-evaluate the time of death?"

The time of death was determined by technology, but the video clearly shows it.

Comparing the two, the video is definitely real.

But Lu Chuan shook his head.

Zhang Hui said it tactfully. The re-identification actually means that there is something wrong with his identification of the time of death when compared with the video.

However, just after looking at the photo again, Lu Chuan knew that there was no problem in determining the time of death.

Otherwise, there is something wrong with the system.

Will there be any problems with the system?

"Brother Hui, there is absolutely no problem with the time of death. I can guarantee this."

Then Lu Chuan pointed to the video the three of them had just watched.

"And if the person who appears in this video is indeed Yang Qianqian, it means that the person who died in Yang Qianqian's house on Wednesday... was not Yang Qianqian!" (End of Chapter)