civil forensic

Chapter 218 Blood Curtain Cave
The third child died in his own house.

This is a centrally located apartment.The area is not large, more than 100 square meters, but half of it is empty, and the decoration is very luxurious, like the American luxury apartment seen on TV.

The body of the third child was lying on the empty floor, next to the body of his current boyfriend.

Blood flowed down from the hollow floor, not only along the stairs, but also from the hollowed-out railings on the front of the hollow floor.

It is conceivable that during the short time when the blood is abundant, this luxury apartment in the city center is like a water curtain hole made of blood dripping. A waterfall made of blood flows down from the empty floor, dividing the room into pieces. for two.

Even now, there is still viscous blood, dripping down from the hollow layer, or simply drawing from top to bottom.

"I really want to show this ghostly scene to people who buy a haunted house." The fat man stood at the door, looking up at the dripping blood, and the smell of yesterday's pan noodles came from his throat.

"Did your family let you buy a haunted house?" Shou Xiankan was Fatty's master and knew about his family's situation.

The fat man said "En" and said: "They think that it doesn't matter if I live in a haunted house because I often come into contact with corpses anyway. Besides, I'm young and full of energy. If I live in it for a while, the haunted house will get better. Maybe when I sell it It can still be sold at the price of a normal house... I firmly disagree, so forget it."

"Not every haunted house is like this." Shou Xiankan looked at the blood-colored water curtain hole and asked at the same time, "Why don't you agree?"

"Because I can't afford a haunted house." After the fat man finished speaking, he asked, "Where do we start?"

Shou Xiankan looked at Jiang Yuan and said, "Follow Forensic Doctor Jiang."

This is the jurisdiction of the Qianjin District of Qinghe City, and the criminal police brigade in the Qianjin District is responsible for the murder.The captain was none other than Lei Xin whom Jiang Yuan had met before.

Lei Xin had cooperated with Jiang Yuan in the case of burning corpses and homicide before, so after confirming the identity of the deceased and knowing that Jiang Yuan was working on a related case, he immediately called.

Now, the technicians in the advance area are all sweeping the periphery, and the empty floors on the second floor, especially the corpses, are all left untouched, waiting for Jiang Yuan to come and deal with them.

Jiang Yuan dressed neatly and went upstairs with Wu Jun.

In front of the two of them, transparent acrylic footstools were spread one by one, trying to avoid affecting the scene as much as possible, especially avoiding repeated stepping on bleeding footprints.

The four of them lined up in a row and walked upstairs slowly.

Two male corpses, bare upper body, covered in blood, lying in a pool of blood.

Thinking of seeing one of them yesterday, Fat Xiankan's throat became itchy even more.

"The bloody footprints must be carefully photographed." Jiang Yuan took a rough look first, and then arranged.

Although Wu Jun is the master, he is wise to abdicate now, and took the initiative to pick up the camera and start shooting.

At the scene of a murder, the most important thing is the corpse, but the solution to the case does not necessarily rely on the corpse.

Other information surrounding the body, in some cases, makes it easier to solve the case.

For Jiang Yuan, the bloodstains on the scene can bring too much information. How many times has he reconstructed the crime scene?And with this kind of skill base, the efficiency of obtaining and sorting out information on the spot is too high.

Just like the simplest fingerprint scanning, no on-site inspection can be done inch by inch.

Scan fingerprints on a large area, or use a field survey light to snap a photo, and you can see a lot of fingerprints.

But it is also mainly used outdoors.There are fingerprints everywhere in the room, and you have to judge which fingerprints belong to the victim and which fingerprints are useful fingerprints.

Otherwise, it would be impossible for a surveyor to bring home hundreds of fingerprints without scolding her.

The more common method is that on-site investigators analyze the beginning of the case based on the situation at the scene, guess the direction of the case, and then check the place where the criminal may have left fingerprints.

Just like what Jiang Yuan did yesterday.The place where the thief leaves fingerprints is most likely to be near the door lock, because he has to take off his gloves to work, and then wipe his fingerprints, which is very easy to make mistakes.As for the interior, the thief is wearing gloves again, and it is very meaningless to look for fingerprints.

Therefore, if the murderer's crime process can be determined by reconstructing the crime scene, the collection of evidence will be simpler and more complete.

However, at today's crime scene, Jiang Yuan felt that this trick was not even needed.

He looked at the bloody footprints one after another, and soon had an idea in his mind.

"The murderer is 25 years old, and it can be enlarged to about 28 years old. The actual height... should be about 170, and the weight is 140 catties..." Jiang Yuan found two bloody footprints with good conditions, observed them carefully for a while, and directly gave Come to a conclusion.

The most famous site survey in Qinghe City was Chen Wenming, but he didn't come this time.

Fatty Xiankan, as Chen Wenming's subordinate, has seen Chen Wenming do footprints, but compared with Jiang Yuan's approach, he only feels that Jiang Yuan seems to have invited God to his body.

All technicians know that for some indicators, if you want to give a wider and simpler one, and if you want to give a narrower one, you need to consider multiple factors.is very difficult.

Jiang Yuan dared to give such a series of conclusions, and Fat Kan was a little worried about him.

But Wu Jun was used to Jiang Yuan's common words when drawing conclusions, and asked, "What does actual height mean?"

"This is what makes this case more distinctive." Jiang Yuan blurred his hand twice in the air, and said, "Look at the second half of the shoe print, it feels a little laggy."

"What is this?" Wu Jun asked.

Fat Kan followed the footprint expert, and blurted out: "Small horse-drawn cart?"

Jiang Yuan glanced at him and said, "We usually call small feet to wear big shoes, but it has the same meaning."

It is relatively easy for small feet to wear big shoes, and there are many distinguishing points. In addition to the drag mentioned by Jiang Yuan, there may be heavy heels, or virtual pressure on both sides, and changes in the center of gravity of the thumb, little finger and other positions.

All in all, small feet wearing big shoes are very easy to be dismantled, but anyone who reads a little book, learns a little knowledge of trace inspection, or goes to a prison for three to five years of further training should know the relevant knowledge.In contrast, there are better and simpler ways to hide shoe prints, such as...

"Then this person is a bit stupid, is he an amateur?" Fat Kan has learned it before, and he said the main point in one sentence.

At this time, Jiang Yuan shook his head and said, "This person is a little different."

"where?"

Jiang Yuandao: "Look at the outer edge of the shoe print... This person should be wearing height-enhancing shoes, and he wears big shoes for small feet. I think it should be a complete set."

Wu Jun nodded, recorded it, and said: "Looking at the corpse, they stabbed a lot of knives, and they used a lot of force, which reached an unnecessary level. It is very likely that it was a love killing..."

"Yuan Yutang should be bisexual. There is also the possibility of a rival in love."

"Homosexuals can have male rivals too."

"makes sense."

"However, even if one has the key to kill two men, it is very difficult to come in and kill them while the two are asleep." Jiang Yuan stared at the pool of blood on the ground for a while, and then said: "The one who killed Yuan Yutang By then, he had already woken up, the pool of blood here has been washed with water many times, there may be blood left by the murderer, you should take more test materials and go back."

The specially rinsed blood can only cover up the traces, but cannot eliminate the existence of DNA. If you want to clean it thoroughly, you need to use some special formula cleaners.

Fat and thin now agreed, and they all leaned over and wiped.

Jiang Yuan continued to stare at the surroundings for a while, and then said: "The hygiene of the apartment here should be cleaned by someone. After a while, someone will ask if there are any missing towels and the like in the bathroom."

"You suspect that the murderer was injured and wrapped himself with a towel?"

"Yes, look for pillows and sheets. It's possible that where his blood dripped, one or two things may be taken away on the spot." Jiang Yuan said, and started looking for it by himself.

He tried to see if he could find incomplete bloodstains, which must have been left by the murderer.

Jiang Yuan felt a little relaxed when he did this.

The case in front of me gives people the feeling that the element of passion and murder is relatively large.

As for passionate murder, if it is fatal with one blow, it’s okay. This kind of stabbing with a knife in the face, and the first stabbing can’t kill him, and then he stabbed to death forcibly under the opponent’s resistance. It's hard not to leave evidence.

In this case, if you want to evade the attack and hide the facts of the crime, you have to prolong the time for the body to be discovered, so that the biological evidence at the scene will naturally deteriorate.Either throw the body away, and then deep clean the scene.

However, cleaning the scene itself is a technical task, and there is also a risk of being discovered when throwing the body, and the second scene created may not be undiscovered.

From the point of view of criminal investigation, cases of passion murder are generally not very difficult.

And the participants who kill with passion are often reckless.That's why it's called passion. If it wasn't for getting dizzy and the atmosphere reached the level of killing people, normal people would never resort to killing people with normal thinking.

After searching around, Jiang Yuan didn't see any incomplete bloodstains. He stood up and concluded: "At present, we can check first. Some of Yuan Yutang's male lovers or rivals wear height-enhancing shoes and big shoes at the same time. A man with a shoe size." Jiang Yuan made an estimate, and said: "After increasing the height, this person should be about 180 centimeters, and the shoe size is 44."

Wu Jun shouted through the railing: "Captain Huang..."

Huang Qiangmin ran over in a dizzy manner and asked, "Do you have any clues?"

Jiang Yuan recounted the judgment of several people just now to Huang Qiangmin.

Huang Qiangmin muttered a few words, and immediately said: "I will let Wu Junhao come over to arrest people now."

Only then did Jiang Yuan remember the thief from yesterday, and hurriedly asked: "Did the thief catch it?"

"I caught it, and it's under trial. I'm an old thief, and I'm a little chewy." Huang Qiangmin took out his mobile phone and went to work by himself. "

(End of this chapter)