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

Corpse No. 43 is a male corpse, 1.7 years old, [-] meters [-], left-handed. Judging from the corrosion of the chain, the murderer dumped the body about a year ago, within a year and a half. Lu Chuan still needs to do some experiments to determine the specific time. .

As for the conclusion that he was left-handed, Lu Chuan did not need to explain. Sun Jian and others were not hard-working people. The left hand of Corpse No. [-] was obviously thicker than the right hand, which was exactly the opposite of the situation of ordinary people.

The size of adults' hands is different. This is not caused by congenital formation, but by acquired development due to the different frequency of use of the two hands.

The vast majority of people are right-handed. In daily life, the bone gap of the right hand is wider than that of the left hand.

If the opposite situation occurs, it is most likely left-handed.

Because the corpse is soaked in water for longer, the degree of liquefaction of the corpse is greater, and the smell is stronger.

As the investigation and forensic work continues, other members of the crime team are not idle either.

For this old case, the most important thing is to determine the source of the body.

Only when the identity of the body is confirmed can we proceed to the next step.

After the five body bags were discovered, every time Lu Chuan gave the basic data of each body, the crime team would take the first step to investigate the missing persons.

The identity of Corpse No. [-] soon became highly probable.

"Eight months ago, we received a missing person report, Su Mo, female, 1.6 meters tall, 26 years old, from Haizhou City, working at Haolai Massage Club."

Wang Song quickly identified the target in the missing persons information database.

Under normal circumstances, the age and height of a missing person will most likely have unique attributes. As long as these two pieces of information are available, as long as the other party reports missing, there is a high probability that the information will be found.

Anatomy room.

"Confirmed, the identity of No. [-] is Su Mo, the masseuse who disappeared eight months ago so that she can come back again."

Sun Jian looked with complicated eyes at Lu Chuan, who was squatting in front of body bag No. [-] and continuing to do the spot survey.

Damn it, this is the gap.

People can figure out so much information just by looking at it once. Forensic doctors like myself...

These days, it is said that the person who defeats you is not your peers, but most likely someone from across the border.

Unexpectedly, the forensic field also fits this rule.

"Brother Sun, help me, this chain is new, don't mess with it."

Of the five body bags, the other four have now determined the time of death for body No. [-], eight months ago, body No. [-] a year ago and within a year and a half, and body No. [-] longer, five years ago, but not more than ten years ago.

The longer the time, the lower the accuracy of judgment. The body bag No. [-] that has been soaked in water for the longest time has been more than ten years.

The latest one is body bag No. [-]. The chains are not rusty yet, probably only a month or two old.

The information was continuously summarized to Li Donglin, and every piece of information made Li Donglin think more deeply.

The time span for the murderer's crimes was too long.

ten years!

Moreover, the other party's methods and techniques of dismembering corpses seem to have been improving.

Corpse No. [-] only had saw marks on the torso, but the limbs were chopped off with an axe.

The longest corpse, No. [-], had no traces of saw cutting at all, and was all dismembered by axe.

Obviously, the other party's method of killing is gradually evolving, and the method is becoming more and more skillful.

This kind of criminal suspect is the last thing the police want to encounter, because they have committed many crimes and passively accumulated a lot of experience, and they are growth-type criminal suspects.

The identification of corpse No. [-] was easy, but the progress of the subsequent four corpses was very unsatisfactory.

"The murderer probably did not kill in one place, and if he killed so many people in one place, he would have been discovered long ago, right?" The person who spoke was the forensic doctor of the Liangzhou City Criminal Investigation Detachment, a middle-aged man with tall hands and eyes. Very bright and bald.

"I also think that this guy killed five people... No, he killed at least five people. He is definitely a pervert."

"Do you think the murderer lives near here? Otherwise, why are the five bodies dumped here?"

this problem……

Lu Chuan nodded inwardly. The five body bags were all found in the same river section, and the time span exceeded ten years. This meant that the murderer most likely lived nearby and was used to abandoning corpses here.

Moreover, if it were not for the construction of a hydropower station on the Wangjiahe River and the interception of water, which caused the water level to drop, these corpses would not have been discovered at all.

Perhaps this is an unsolved case that will remain unsolved for a century.

If Wangjiahe is not dried up and the body cannot be found, the murderer will of course remain at large.

Maybe he would continue killing people and then quietly come back here to dump the bodies.

"The place where the murderer dumped his body was in the deep water area of ​​the Wangjia River. The water flow is fast and fishermen usually don't come here. It was definitely a place carefully chosen by the other party."

"Well, no one has discovered it for more than ten years. If I were the murderer, I would still choose to dump the body here."

While the forensic doctors were boiling the bones to separate the flesh and blood, they discussed the direction in which the case would develop.

When the fifth body bag was untied, the condition of the body inside gave the forensic doctors a lot of comfort.

The body's integrity was very good. Although the swelling was extremely severe, it was not decomposed.

The fatal injuries were also very obvious. He was stabbed in the back and stabbed continuously, which eventually led to the death of the deceased.

This made Lu Chuan more excited. The stab wound on the back could not only determine the cause of death of the deceased, but also analyze some information about the murderer.

"Killing someone behind the scenes shows that the deceased was most likely unprepared for the murderer, and the two may have known each other."

Sun Jian only took one look at the wound and made his own judgment.

Other forensic doctors also nodded, this is common sense of probability.

In most cases, the murderer has a motive. There are random killings, but they are rare in China.

Judging from everyone’s knowledge and experience over the years, the murder behind the scenes was most likely the result of a sneak attack by an acquaintance.

"The deceased was a male, 1.8 meters tall... The height of the wound was three centimeters below the back of the heart, and the entrance of the knife wound..."

Lu Chuan opened the wound and carefully observed its shape. Although the wound was swollen and deformed due to being soaked in river water, he could still determine the direction of the wound.

"Stab it diagonally downward. The murderer should be lying on the knife with both hands, from top to bottom. This distance..."

Lu Chuan analyzed and took action again and again.

Raise your upper hand high above your head, make a fist and thrust downward.

"It's just an angle!"

"Based on the height of the deceased...the murderer's height is most likely between 1.7 meters and 1.8...[-] meters. It's very powerful. He is an adult male."

This data...

Sun Jian and others looked at each other, this was a bit mysterious.

Of course, everyone knows the truth behind this. Based on the inclination angle of the wound and the height of the deceased, if you want to leave such a scar, you can roughly calculate the height range of the murderer.

However, if it is theoretically possible, how to calculate it specifically?
We are forensic scientists, not mathematicians. (End of chapter)