Chapter 411: Composure

Changxin Village.

Incoming vehicles, one after another, parked wherever they could find space around the southeast of the village.

Some villagers who were happy to see the hunt came out to collect parking fees, only to be called aside and educated.

Two technicians from the Criminal Science Team, plus Forensic Doctor Old Ye, entered the courtyard in the southeast corner and did not come out again until they saw Jiang Yuan, at which point the brows of several people relaxed.

"Come in and take a look; the scene is a bit miserable."

Seeing that Jiang Yuan had really come, Old Ye's spirit was different.

Since entering the scene, he had been constantly asking Hou Hou Lejia to invite Jiang Yuan over, not only because he was not confident, but also because the momentum of the scene was different.

Although Forensic Doctor Ye had limited ability and average level, he had been doing forensic work for so many years, and he had seen many scenes.

Some crime scenes created by criminals, at a glance, you know it's the work of a novice, while others, at a glance, you know it's not simple.

Jiang Yuan changed into protective clothing and other equipment and entered. He saw bloodstains appearing from the position of the door.

"Killed their way in? Was the murder weapon left behind?" Jiang Yuan knew it was a long knife with a sharp edge and heavy weight just by looking at the bloodstains on the ground and the wall.

Just this one judgment was already Level 6 trace tool inspection and Level 5 bloodstain analysis.

"It wasn't left behind; we specifically looked for it." Old Ye was a little regretful.

This is also one of the signals of an experienced hand. Many novice murderers like to throw the murder weapon at the scene because it is troublesome to hold something in their hands when running away, or they are afraid that holding the murder weapon will be easily discovered and reported by passersby, or they don't know how to deal with it.

In fact, any way of handling it is better than leaving it at the scene. Because for any homicide case, even with Jiang Yuan's ability, it is difficult for him to confirm the type of murder weapon at the first time, let alone its specific appearance. Initial judgments basically rely on guessing.

And in the later stage, in order to ensure the integrity of the chain of evidence, the police will also spend great efforts to find the murder weapon, and the investigation of criminal cases is, in essence, a confrontation of resources between the police and the bandits.

Consuming more police resources, theoretically, reduces the risk of being arrested.

Of course, ordinary criminals would not consider this step at all, because if they considered this step, they should know that not committing high-violence crimes and not creating tragic scenes is more beneficial in reducing police investment.

But most criminals tend to do the opposite. In the final analysis, when they choose to commit a crime, the factor of confrontation is already expanding.

Forensic Doctor Ye continued in front of Hou Hou Lejia: "A very composed feeling. Look, so much blood flowed, there isn't even a bloody footprint on the ground. There is even more blood inside, and no one stepped on it."

"Indeed." Jiang Yuan agreed, observing his surroundings while walking inside along the laid-out wooden bridge.

This house in Changxin Village was built in recent years. The large courtyard at the entrance was paved with anti-corrosion wood, and the four-story building was not large in area, but the first floor was set with a porch. After bypassing it, it was a large living room with floor-to-ceiling windows, looking atmospheric and bright.

Of course, there was a lot of blood sprinkled on the ground now, and the male owner was lying on the floor-to-ceiling window with his upper body, his waist almost cut off. The design sense of the living room was a bit hard to see, but the "foreign style" index had risen.

There were still no bloody footprints on the bloodstains in the living room.

Jiang Yuan said: "The murderer walked while avoiding the blood left behind. It is indeed very composed."

Although, when hacking and killing at the scene, the blood that burst out at once would not be as much as it is now, but avoiding this blood still requires extra attention.

Extra attention means that the murderer's state at this time is relatively calm. Just this point is very difficult. Normal murderers, regardless of how well they planned before, if they are not repeat offenders, are definitely in a state of being "up" at this moment. If they don't shout out, it's already good; where can they manage what happens afterwards?

One of the secrets of ancient secret marching was to require "people to hold a stick in their mouths, horses to remove bells," to prevent novices from being "up" and shouting.

At the same time, Jiang Yuan noticed a large number of footprints in the living room, sighed, and asked: "Have villagers come in?"

"Yes, the villager who discovered it ran out to call people, and some people even used a crutch to poke the corpse." Old Ye's face was also black when he said this.

Wang Zhong, who came as a trace inspector, took photos and looked at the shape of the corpse, saying: "It's already like this, and they still can't tell the person is dead?"

"People just want to touch it, what can you do." Old Ye hummed and said: "The old men in the village, there are also bad-hearted ones."

The police officer at the scene said: "We took a statement from the old man with the crutch and recorded it. He said he wanted to see if the corpse was soft or hard, so he poked it a few times."

"The old man is almost seventy, he should just be curious." Hou Hou Lejia's face was black. This kind of thing is the most disgusting, belonging to the type that is not easy to handle, and disgusting if not handled.

He now naturally does not want to create extra trouble, so he also has a mentality of calming things down.

"Go to the second floor." Jiang Yuan looked at the living room, kitchen, bathroom, etc., and continued to walk upstairs.

The second corpse, the female owner of the house, died at the stairwell on the second floor, the corpse face down, forming a pool of blood.

Further inside, it was the master bedroom turned upside down, and the master bedroom changing room full of clothes and shoes on the floor.

"Some cash was lost, a little gold, and diamonds from the wedding." The two technicians other than Old Ye were also older police officers. Hou Hou Lejia took care of them and didn't send them on business trips to other places. He didn't expect to encounter a more tragic homicide scene.

However, their technology was not bad, and their experience in crime scene investigation was also very sufficient, so... the two also suggested to Hou Hou Lejia to invite Jiang Yuan back—if you didn't scan any useful fingerprints and DNA in the beginning stage of the crime scene, then instead of expecting to scan them later, it's better to hope for a crime scene investigation that understands bloodstain analysis. For example, Jiang Yuan.

Hou Hou Lejia wanted to persist for a while longer, but the situation at the scene was not optimistic, and he didn't dare to let the golden 24 hours flow away.

"Take the footprints of everyone who has been to the scene, including police and civil servants." Jiang Yuan first exhorted a step, and then began to check the corpse.

"Any discoveries?" Hou Hou Lejia leaned over eagerly.

"Look at luck." Jiang Yuan meant that if luck is bad, there will be a large-scale investigation, and if luck is good, it will be easier.

Hou Hou Lejia felt a bit disappointed from his own perspective.

If solving a case relies on luck—although he also often relies on luck, it is precisely because he relies on it too much that he knows how unreliable luck is.

"Scan the scene."

Jiang Yuan did not find clues that could directly point to the murderer at the scene, so he could only follow the steps.

Using Level 4 crime scene investigation, even if the murderer is very careful, Jiang Yuan has the confidence to find clues.

Even if it is a skilled hand, its level of concealment is limited. Even for criminals who have studied many times, their maturity is very slow.

This is mainly because the cost of training is too high. If you have to go to prison after practicing an average of three or four times, it is very difficult for a criminal to be more skilled than the police.

In addition, criminal behavior is also a competitive behavior. From this point of view, criminals with generally low education are likely to be at a disadvantage compared to police officers with generally higher education, especially criminal science personnel.

Especially in the state of serious crimes where everyone is very serious, criminal science personnel with theoretical guidance always perform much better than criminals without theoretical guidance.

The latter truly live by luck.

"Give me a few more cotton swabs, and evidence bags." Jiang Yuan said a word while scanning.

Hou Hou Lejia was looking around the room like a headless fly, and immediately walked over when he heard this, asking: "Any discoveries?"

"There are sweat stains in this drawer where jewelry is placed, which may have been left by the perpetrator." Jiang Yuan pointed to the edge of the jewelry box.

In the light-colored wood-grain drawer, two traces of suspected sweat stains could be seen, which were not easy to find. Jiang Yuan also held the drawer containing the jewelry and looked at it carefully before confirming one place.

The victim's master bedroom was turned over very thoroughly, including some winter quilts that were turned over. Coupled with the fact that two people had just been hacked to death, the perpetrator's emotions were relatively excited, and sweating was almost certain.

And the victim's jewelry was placed in the drawer below the wardrobe. At this time, some large jewelry packaging remained inside, but the rings and necklaces inside were all gone.

This kind of drawer is actually not the type that is easy to disassemble. The perpetrator probably lowered his head to pick up the jewelry one by one into his pocket.

And after strenuous exercise, it is very easy for sweat to fall.

Wang Zhong brought more cotton swabs and small evidence bags, and Jiang Yuan moistened the cotton swabs on the spot and knelt down to take the sweat stains.

Hou Hou Lejia watched this scene, both happy and a little inexplicably sad. He had such a large expenditure, if he saved it for a few more years, maybe he could buy a private jet, and that's it? ===== CHAPTER 412 =====