novice forensic medicine

Chapter 276 The Pool of Blood Under the Floor

Da Zhao didn't say anything, and went downstairs quickly. Zhou Ning supported Liu Yongxin and climbed down from the attic.

As soon as he got down, Da Zhao had already run back out of breath.

"I asked, the small second floor in front of Xu's house was built in 2000. The husband and wife live downstairs, and the girl's son's room is upstairs."

The three of them went up to the second floor together. There were two rooms on the upper floor. The one in the middle was the guest room. Zhou Ning went to the room on the west side. There was a huge photo on the wall. It was a family of three. They looked very happy. He looks two or three years old, with a tiger head and a tiger head.

Zhou Ning recognized at a glance that this woman was Xu Dan. He took a look at the furnishings of the room, including the wardrobe, dressing table, bed, writing desk, and bookcase. These furniture were all made of pine wood, and the color had turned into light brown. Such furniture can become so The color has aged a lot.

As for the floor, it is the old-fashioned pine floor, and some places have large gaps, which seem to be cracked after drying. Zhou Ning opened the investigation box, found the luminol reagent, and began to spray carefully towards the gaps in the floor.

Of course, there is still the base line in the corner, and I didn’t give up. I sprayed almost all of it except under the furniture. Zhou Ning got up and drew the curtains, and the room was dark.

In the crevice of the floor near the bed, a burst of fluorescence is very conspicuous.

Zhou Ning was overjoyed and shouted towards the door:

"come to me!"

Liu Yongxin and Zhao Xinli ran to the door quickly, and seeing the blue-green fluorescence on the ground, they looked at Zhou Ning suddenly.

"Found the blood?"

Zhou Ning nodded.

"The decoration around 2000 is more popular with pine flooring, which is cheap and environmentally friendly. However, this floor has a disadvantage, that is, after drying, there will be large gaps. No matter how clean the floor is, blood will remain in the gaps. Even There's more under the floor I guess, help me get the bed out."

Zhao Meizi went to the window, opened the curtain, opened the window and shouted:

"Come up a few people and move things."

After a while, the person who came up moved the bed out and placed it directly in the next room. On the floor under the bed, Da Zhao had already sprayed the luminol reagent, and it turned out that the fluorescence reaction was even stronger under the bed.

Da Zhao looked excited.

"Is it possible for Director Xu to catch Xu Dan?"

"Fingerprinters, tell them to stop."

Zhou Ning shook his head and went to move out the bed in Xu Dan's room next door. He lifted the sheet and saw a bloodstain on the mattress underneath. He saw it when he moved the bed and cut it off with a blade. Stuffed it into the evidence bag and handed it to Da Zhao, and continued.

"Let's talk about the evidence, but call Director Xu and ask him to ask people around him if Xu Dan had any good friends or classmates who ran away from home ten years ago?"

"runaway?"

Liu Yongxin kicked Da Zhao and stared straight away.

"It's not why you talk so much nonsense recently, you can do whatever you want. There is no matching DNA in the missing persons, it means that the family members don't think that the person is dead. With this analysis, the only way left is to run away from home, of course. It may also be elopement, but at this age, it is rare to do so."

Da Zhao suddenly realized, quickly dialed Xu Dayuan's mobile phone, and carefully recounted the discovery here, as well as Zhou Ning's words, to Xu Dayuan.

After hanging up the phone and returning to the room, Da Zhao walked over to Zhou Ning's side.

"Director Xu said that since he suspected that there might be more bloodstains underneath, he removed the floor."

Zhou Ning stood up. It is true that although the fluorescent reaction can be found here, it is a bit troublesome to extract it. The best way is to remove the floor.

"It's better to call the people from the village committee up, as a witness, and then you take pictures and ask someone to find the hammer, and just dig it out from the position under my feet."

Da Zhao hurried to make arrangements, and Liu Yongxin took a look at the place where fluorescent traces were found on the ground.

"If the murderer is Xu Dan, how did she hide in the attic by herself? Xu Dan wasn't very big ten years ago, right?"

Zhou Ning glanced at Xu Dan's age on the notebook, if it was ten years ago, Xu Dan was 18 years old, Zhou Ning paused slightly.

"Ten years ago, Xu Dan was 18 years old. She took the college entrance examination that year, and the deceased was also 18-20 years old. Could it be her classmate?"

Liu Yongxin also came over, and this analysis became more and more reliable.

"Let's think about it. When I came here yesterday, I was smoking downstairs. At that time, people in the village were chatting. I listened to it. It seemed that Xu Qing and Xu Dan were both up to date. Both of them studied in Rudong No. [-] Middle School. One was admitted to China Normal University with a high score, and the other was admitted to Lu Finance and Economics.

But when Xu Dan was in school, it seemed that he was not worry-free at school. The teacher looked for the parents, and it seemed that he had a puppy love. Who was it? "

As soon as the words fell, several policemen and people from the village committee walked in.

Da Zhao took people to demolish the floor, Zhou Ning and Liu Yongxin dragged the person from the village committee to the door of the next room.

"Ask you about something. During the year of the college entrance examination, did Xu's family fall in love? Does their family know?"

Two people came from the village committee. The man was the village director at first glance, and the woman was probably a woman director or something. The two looked at each other, and the woman was silent for a moment before she raised her head and said:

"The eldest man of the Xu family finished the exam, and when their family set up a banquet, I remember a few young people came over, saying they were classmates of the eldest man of the Xu family, and one of the parents came with him. Some people knew him, and later they heard Said, that is the director of Qiandi Village, his surname is Chen Zhonghe, and his third son Chen Ningyu and Xu Dan are classmates."

Zhou Ning looked at Da Zhao, and Da Zhao understood Zhou Ning's intention to call Xu Bureau, so he turned around and quickly made a call.

Not long after, Da Zhao came back and nodded towards Zhou Ning.

"Director Xu will come over later."

Zhou Ning didn't say anything else, put away the police phone in his hand, just now he searched for Chen Ningyu's identity information, there is indeed such a person, but the ID card is an old version, the photo is blurry, it can only be seen that it is a cut head, facial features are very Zhou Zheng, the details cannot be compared.

He turned and went upstairs, Da Zhao said a few words to the village committee members, and then ran upstairs. At this time, part of the floor upstairs had been lifted, and there were two pools of blood ten centimeters in diameter. Da Zhao moved over.

"I've found blood stains. I'll take a sample first, and then I'll find a tool to lift all the floor off."

Those people also nodded, and found a crowbar to slash all the floor under the bed, and cleaned up the broken floor on the ground, completely revealing the blood stains below.

A large pool of blood traces had completely infiltrated the concrete floor. Da Zhao moved closer and dug out a blood-stained concrete fragment. He even took many samples from the surrounding area, and then stood up holding a piece of the floor.

Wipe off the sawdust on it and show it to Zhou Ning.

"There is a trace here, which seems to be left by an ax cut. It is here that the murderer killed and dismembered the deceased. It is estimated that something was placed on the ground, but this ax still left a mark on the floor."

At this time, there was a sound of hurried footsteps, Zhou Ning and Da Zhao hurriedly turned their heads, and sure enough Xu Dayuan came. Seeing a messy house and pools of blood on the ground, his eyes lit up, and he was about to come in, but was stopped by Liu Yongxin , Zhang Niannian in the back also stretched his head to look over.

"Don't go inside, let's talk next door. Only the three bedrooms on the second floor of Xu's house are paved with pine floors. This kind of floor is not hard and has a high water content. Even if the paint is easy to crack, the blood will flow along the cracks." to the bottom, otherwise it will not be easy to leave traces."

Zhang Niannian came over with a look of excitement.

"I'll send someone to go now, and take the Xu family's brother and sister back to the criminal police team for interrogation."

As soon as Xu Dayuan waved his hand, Zhou Ning asked him to come over. Naturally, he had other discoveries. After all, Director Chen from Qiandi Village was also mentioned on the phone.

"Don't worry, Zhou Xiaozhou will come out and ask about the situation."

Da Zhao cleaned up the scene and wanted to take pictures. Zhou Ning had already come out at this time. He knew that Xu Dayuan was in a hurry, especially to find some clues.

Before entering the next door, Xu Dayuan already asked in the corridor:
"Zhou Xiaozhou hurry up and talk about the results of your investigation!"

Zhou Ning talked about the attic and the discovery at the scene, and of course did not mention the three missing fingerprints of Xu Dan last night that could not be compared.

"The situation is like this. This room belongs to Xu Dan. There are photos of Xu Dan's family of three on the wall. According to the reports from the village committee, in 2002, Xu Dan got good grades in the college entrance examination and held a student banquet at home. Chen Ningyu from Qiandi Village Maybe have a love affair with Xu Dan.

I think Xu Dan can keep an eye on our movement. Even if we interrogate Xu Dan now, we don’t have much evidence. We can check the Chen family’s Chen Ningyu first. In addition, I need someone to get the murder weapon and the weaving that wraps the murder weapon. Bag inspection.

If a young woman is the murderer, she may also be injured during the process of dismembering the body. We have to fight for luck. After all, there are no conclusive traces left by the murderer at this scene. Even if Xu Dan is the murderer, he cannot go prove. "

Xu Dayuan nodded, he absolutely trusted Zhou Ning's judgment.

"I asked Liu Yufei to keep an eye on Xu Dan and not show up for the time being, but he can control it at any time. Da Zhao stayed behind to deal with the follow-up work and sent someone for inspection. Didn't you say that the lack of three fingerprints on Xu Dan's fingers might have something to do with it? , Zhou Xiaozhou and Lao Liu followed me to Qiandi Village.

If the DNA comparison is successful, the identity of the deceased can be determined, but the child in the family has disappeared for so many years, don't you know how to find it? "

Zhou Ning didn't answer, and he couldn't explain it. After all, all this is speculation, and everything can only be confirmed by meeting the Chen family.

Ten minutes later, the crowd came to Qiandi Village. Under the guidance of the Renjiazhuang Village Committee staff, the police car went directly to the Qiandi Village Committee.

After getting out of the car, many people surrounded him. After all, there were so many police cars, everyone was very curious, but no one dared to come up to inquire.

Xiaobai moved quickly, went in for a while, and came out with a gray-haired old man. The old man held reading glasses in one hand, and his face was full of doubts and fears.

Zhou Ning narrowed his eyes and stared at the old man, he was afraid, his lips trembled slightly, logically Xiaobai just asked who the director of the village committee was, and didn't say the purpose of their visit, why did the old man react like this?
Xu Dayuan stepped forward to shake hands, the old man smiled and extended his hand.

"excuse me, you are?"

"You are Director Chen, right? I'm Xu Dayuan from the Qindao Criminal Police Detachment. Let me know the situation with you. Is it convenient for you now?"

(End of this chapter)