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

Chapter 567 QZ City 116 Case

Li Donglin looked at Lu Chuan's expression with great anticipation.

Judging from the past experience of the crime team in solving crimes, Lu Chuan can always give very valuable clues in major and important cases.

On-site investigation has always been the most important and fundamental link in solving crimes.

However, given that everyone has different abilities, the situation at the scene is different, the number of traces left by the murderer at the scene, and various other objective factors, the findings of each investigation will be different.

In some crime scene investigations, a fingerprint may be used to identify the murderer.

However, there are also cases where the murderer seems to have left no traces at the scene of the crime, and the on-the-spot investigation seems to have lost its meaning.

A great detective is someone like Lu Chuan. He can discover things that others haven't discovered, and he can find details that others can't.

This morning, Lu Chuan stayed at the scene the longest.

It's equivalent to re-surveying the scene.

Although half a month had passed, many things could not accurately tell Lu Chuan what happened at the crime scene.

However, the discovery of some details still allowed Lu Chuan to find some valuable clues.

"There are three murderers."

Lu Chuan's judgment was consistent with that of the Tianzhou City Criminal Investigation Detachment. The traces of three unfamiliar footprints at the scene were very obvious.

"Suspect No. 1, the murderer who cut the throat of the male victim, is male, 1.73 to 1.76 meters tall, weighs about 70 kilograms, has an old fracture in his right leg, and did not receive good treatment at the time. "

The footprints of suspect No. 1 are very distinctive.

The footprint of the right foot is lighter than that of the left foot, and the angle is slightly outward.

This condition is not born. Generally speaking, the tibia has been fractured, but during the process of restoring the bone, it was not treated well, so it left a certain degree of disability.

"Suspect No. 2, a large number of footprints appeared in the kitchen, is the murderer who dismembered the child. He is male, about 1.7 meters tall, weighs 60 kilograms, and is left-handed."

"Why are you sure you're left-handed?"

Sitting opposite Lu Chuan, a middle-aged detective asked a question.

"Because of the angle of the stab wound."

"There are three suspects in total. Judging from the distribution of footprints at the scene, they attacked three victims respectively."

Everyone agrees on this.

"Suspect No. 2 in the kitchen, when dismembering the body, cut at an acute angle from the left side."

"If the knife was held in the right hand, the wound should be cut diagonally from the right side."

"In addition, suspect No. 116...should be the suspect in the murders in Qinzhou three years ago."

Qinzhou... 116 extremely large murder case?

Everyone here has heard of this case.

Three years ago, a shocking and major case occurred in QZ City.

Three years ago, on November 11, a murder occurred at QZ City Vocational and Technical College.

In a dormitory where 6 female students lived, 5 people were killed overnight, and only one survived unexpectedly.

At that time, this case was registered with the provincial department for supervision.

Now, Lu Chuan actually said that suspect No. 2 was the criminal suspect back then?

Li Donglin also looked at Lu Chuan with a solemn expression.

He had been to that case back then, but it was not solved and it remains an unsolved case until now.

Why did Lu Chuan judge that suspect No. 2 was the suspect in the Qinzhou case?

"Lu Chuan, are you sure?"

Lu Chuan nodded solemnly: "Li Chu, I should be sure." Lu Chuan turned on the projector and used Bluetooth to contact his mobile phone.

"I have seen the Qinzhou 116 case files at the fingerprint identification and analysis meeting organized by the provincial department."

In fact, this case should not have been placed in the fingerprint battle case library at that time.

Because the murderer did not leave any fingerprints at the crime scene.

Without fingerprints, naturally there will be no entry into the fingerprint database.

The reason for putting it in is because there are some major unsolved cases in the province, and every time there is a fingerprint battle, experts are invited to study it.

It doesn't mean to reopen the case investigation, but just to see if anyone can find anything.

Even if the probability is one in ten thousand, it is still good.

Lu Chuan had read the files of this case at that time and studied it carefully.

"The murderer didn't leave any fingerprints at the scene, but look here."

In the photo, it is a dark, brown mark.

"This is a mark I found on the kitchen cabinet door at the crime scene this morning."

The mark is about the size of a thumb, no lines, just a blur.

At first, Lu Chuan thought that the murderer wore gloves and wiped away the traces of blood at will.

However, Lu Chuan, who had read the 116 case files, knew that it was not the case.

"This trace seemed familiar to me at the time, but I wasn't particularly sure. Just before the meeting, I checked the files of the 116 case."

If Lu Chuan was just an investigating detective of the Haizhou City Criminal Investigation Detachment, he would definitely not have the authority to query the electronic files of QZ City 116 case.

However, he is also a member of the Provincial Major Crime Team, which gives him access to the electronic files of cases across the province.

"Everyone is watching!"

At this time, there was another photo on the projection.

It was also a blurry mark as big as a thumb, which was the same size as the mark Lu Chuan found on the kitchen cabinet door during the murder case.

However, one color is dark red and the other is dark brown.

Lu Chuan dragged the mouse, and the two pictures gradually overlapped, and then...

Everyone miraculously discovered that two blurry traces of different colors overlapped!

Yes, it’s like fingerprints, they overlap!

This is why Lu Chuan said that suspect No. 116 was the murderer of the Qinzhou case!

Li Donglin looked at the overlapping traces in front of him and couldn't help but stand up. His eyes were shocked and he murmured to himself: "...is it him?"

Others were also surprised to see the two traces that overlapped on the projection.

Especially the on-the-spot investigation and trace inspection by the Tianzhou City Criminal Investigation Detachment.

"This……"

They actually discovered this trace during the on-site investigation, but they didn't take it seriously.

It was just regarded as a random trace left by the murderer. There was no clear fingerprint information on it, so it naturally had no useable value.

However, this trace now actually overlaps with a trace from the Qinzhou 116 case three years ago...

What does this mean?

In fact, no one took this trace seriously in the 116 case back then.

According to the information recorded in the file, this trace of blood... belonged to one of the murdered students.

It was after the murderer committed atrocities and was contaminated with the blood of the student's private parts that it adhered to the wall.

But since there was no fingerprint information, it was just regarded as traces of an accident.

(End of this chapter)