Chapter 160 A wine bottle fragment

Following the sound, Zhou Ning quickly went upstairs, followed closely by Xu Dayuan.

Da Zhao held up an evidence bag, which contained an L-shaped object. It was dark and looked like metal, and there were cuts on the broken end.

Zhou Ning recognized that this was a door handle. Although it had a very simple shape, the craftsmanship must be very expensive. After all, the paint did not peel off or deform after being burned.

However, it seemed to have crocodile skin-like textures on it. Zhou Ning took the bag, raised it and looked at it carefully, and instantly thought of the scars on Dong Chengwen's hands.

"The door handle of the master bedroom? Mark it and go back to check the skin tissue on it. If Dong Chengwen is not lying, then this is the skin of his hand."

Xu Dayuan glanced at it with disdain on his face, and then stared at Da Zhao.

"You're so surprised when you see something like this?"

With a bitter look on his face, Da Zhao spread his hands towards Xu Dayuan and pointed around.

"This place has been searched all over the place more than once. Just look at these footprints and you will know that no matter whether it was the rescue firefighters or the police who conducted the subsequent investigation, no less than 40 people have entered the scene, and all the valid evidence that can be found has been searched.

This is a fish that slipped through the net, shouldn’t you be happy?”

Xu Dayuan didn't say anything. He saw Yang Xuetong cleaning up the pile of garbage-like things in the center of the bedroom, and followed him to take a look. Yang Xuetong explained while sorting and sorting:

"Da Zhao is right. There was little evidence at the original fire scene. The process of fighting the fire was to destroy the scene. The place was searched many times, the garbage was screened, and the ground was cleaned. There is nothing wrong with such a scene.

Valuable evidence.”

Xu Dayuan rubbed his hair. He knew it was difficult, but he didn't expect that there was nothing left at the scene. Zhou Ning didn't say anything, staring carefully at the dark bedroom.

The bedroom was more than 30 square meters, which was wider than the living room of ordinary people. There was a window on the south side and on the east side, but they had been completely exploded, which showed how fierce the fire was at that time.

The bed is placed on the north wall, and now only the metal frame is left. Even so, the original luxurious state of the bed can be seen.

The bed was also the most violently burned place. Only the spring frame was left of the mattress, and on the built-in bedside table next to it, there were broken red wine bottles and cups.

There was an area on the ground that was the most severely burned. Judging from the charred shape, it was a rectangle with a large area. It extended from the front of the cloakroom door to under the bed. There were no traces of the floor here, and there were cracks on the cement floor.

It seems that there is a thick shag carpet here.

Next to the bedside table is an open cloakroom, close to the bedroom door. Where there is no door, it should be the bathroom.

The bathroom is in good condition.

Zhou Ning walked to the cloakroom. There was a window here with a dressing table in the middle. The decoration here should be a wooden structure, so the burning was even worse. There were fallen metal rods everywhere, even falling cement blocks, and half

Block turns around.

When Zhou Ning walked to the dressing table, his foot slipped and he seemed to have stepped on something. When he lifted his foot, the shoe cover was scratched, revealing a shiny object on the ground.

Zhou Ning knelt down and gently wiped the ashes. The melted glass fragments were exposed. Da Zhao followed Zhou Ning. Seeing what he found, he quickly came over to take pictures.

Then he squatted down and used tweezers to pry it gently. The floor had been completely carbonized. Without any effort, the entire floor with molten glass was pried up and carefully put into the evidence bag. Only then did Da Zhao take a closer look.

"Did the fire start in the cloakroom? I remember that the melting point of glass is 500 degrees, and a normal fire scene can reach 400 degrees after 10-15 minutes. However, there are too many combustion accelerants here, so it is not impossible."

Zhou Ning stared at the glass in Da Zhao's hand, and then looked around.

As the feet continued to rub against the ground, many bits and pieces of glass were revealed, extending all the way to the door of the cloakroom. At the corner of the door opening and the edge of the baseboard, there was a piece of glass the size of an egg stuck with a green light.

Da Zhao rushed over, quickly took a picture of the piece of glass with a scale, then pried it up and put it into an evidence bag. He looked at the dressing table. After all, there were many broken bottles and jars here, many of which were burned into half.

melting state.

"The green one, I wonder what kind of cosmetics bottle it is? Wait for Sister Liu to come back later and ask her if she can recognize it."

Zhou Ning stared at the window, visually measured the distance, crossed his arms and pursed his lips, while Da Zhao looked puzzled.

"What's wrong, Zhou Xiaozhou, do you think this is not a cosmetic bottle?"

Zhou Ning pointed to the position of the first piece of glass and waved to Yang Xuetong.

"Yang Wencheng, come here and measure the straight-line distance from this position to the window?"

Yang Xuetong went over with a tape measure and measured the distance.

"The straight line distance from the window to here is 2.8 meters."

"Go on, measure the distance from the window to the cloakroom door opening."

The movement here also attracted Xu Dayuan. He came over and looked at the glass in the hands of Zhou Ning and Da Zhao, with confusion on his face.

"It's common for glass to break at fire scenes. What do you think is wrong with Zhou Xiaozhou?"

Zhou Ning pondered for a moment and then said:

"This needs to be confirmed with the fire department. I remember doing a question, what can the traces of glass damage at the fire scene prove? I answered this question wrong, so I remember it very deeply. The correct answer is:

It can be proved that the direction of force, the time of fragmentation, the intensity of the fire, and the temperature of the fire scene are four factors. In general, the glass at the fire scene is broken, mostly because the high temperature increases the internal pressure and explodes toward the window, even if there are glass fragments in the room.

, it won’t splash so far.”

With that said, Zhou Ning walked to Da Zhao, took the green glass evidence bag, asked Yang Xuetong for a magnifying glass, and handed it to Xu Dayuan, asking him to look at it carefully.

Xu Dayuan raised the magnifying glass with doubts. The edge of the green glass was no longer sharp. It had obviously melted, and only some small dots could be seen.

However, in the middle position, a letter and four numbers can still be seen if you carefully distinguish them. It is a capital B followed by what seems to be 2009. Of course, it may also be 2008, because that part is very blurry.

Zhu Xingxing leaned over. The young man had a good eye, but she was not afraid of the scene and asked directly:

"B2009 What does this mean?"

Da Zhao came over, took a closer look, and patted his head.

"I took it for granted. I didn't look carefully just now. This is a beer bottle, the beer bottle from our Qindao No. 2 Factory. There seems to be some national standard that requires distinguishing the type and year of beer bottles produced before and after. Therefore, the beer is required to be labeled

B, then add the year of production, but why did this beer bottle explode here?"

Xu Dayuan threw the evidence bag to Da Zhao and frowned.

"There is a possibility that someone threw a beer bottle filled with gasoline at this window, which is equivalent to an incendiary bomb. With the blessing of combustion accelerants, and there is no door blocking the cloakroom, the fire will engulf the entire room in an instant. If the person does not react in time

, unable to escape.”

Zhou Ning nodded, this was what he suspected. Picking up the half brick, Zhou Ning shook it and it was heavy.

"If the Molotov cocktail is hit directly on the glass, it will break into pieces. However, if you smash the glass with a brick and then throw the Molotov cocktail in through the defect, it will be much easier."

The glass fragments were thrown too far away, and they were at the same angle as the wine bottle fragments. They were thrown directly towards the cloakroom door from the window. However, if a brick broke the glass and a Molotov cocktail was thrown in, the sound would not be quiet.

Why didn’t the deceased Fang Hua and her daughter wake up?

According to Dong Chengwen's explanation, Fang Hua was hungry, and Xiaomi was also hungry, so he went out to buy food, and he came back within twenty minutes. The place was already burning. Did he fall asleep? And he slept very hard?

Yang Xuetong looked embarrassed. He had just searched this place. He had discovered the melted glass and didn't take it seriously. But he didn't expect Zhou Ning to find a problem with it.

"Team leader, please criticize me. My survey just now was not careful."

Zhou Ning shook his head.

"I think too much. Most of the cases we take over have been screened many times by others. The problems we can find are all probabilistic events. Now we will clean up the dressing room and mark the positions of all the glass. Clear glass and green glass respectively.

Mark."

Zhu Xingxing walked over and distributed several small signs.

Several people quickly cleaned up the scene and began to place signs, moving from the window to the cloakroom door. Finally, they found some signs on the floor of the bedroom, but they were mixed with the cement below.

Xu Dayuan went out. He sent someone to check the backyard of the villa and called Liu Yufei. Since he was looking for all the materials, he also asked for the previously copied surveillance cameras.

If someone throws a gasoline bottle on the north side of the villa, there will definitely be traces left around, and the surveillance will also record it.

Seeing that they were busy, Zhou Ning went downstairs.

The layout of the first floor is more open, with a nearly 100-square-meter hall, kitchen and dining room with glass curtain walls, which gives a wide view. However, the glass is basically broken now, revealing a door behind the kitchen, which looks like it leads to the north side of the villa.

Walking to the restaurant, there were many overturned chairs and a lump on the ground. Zhou Ning used a brush to clean the ashes on it and found that it was an upside-down cake tray.

Zhou Ning gently lifted the tray and found that the cake was completely rotten, but it could be seen that there were dark brown traces on it. The chocolate cake was not big, only about eight inches. There was a card with a fork on the ground next to it, which said dear

Happy 8th wedding anniversary.

Zhou Ning put the cake tray and the fork card into evidence bags respectively.

You can go down to the first floor along the stairs, and there is a room next to the stairs. The door is open. Zhou Ning opened the door and looked inside. There were a lot of fishing gear hanging inside, as well as children's strollers. There was a piece of equipment thrown on the table beside it.

Men's sun protection clothing, with a standard equipment for taking evidence and taking photos next to it.

It seemed that it was left behind by someone who came to investigate the scene before, but thinking of Dong Chengwen's story, Zhou Ning suddenly realized that he might have found the gas receipt in the pocket of this dress.

Zhou Ning didn't stop, and went straight down the stairs to the negative floor. There were many rooms here, and they were almost not affected by the fire. There were only water stains on the walls in some places. There was a billiards room, a video room, a study room, a laundry room, and a nanny.

house.

Enter the garage from the first floor below, but there is also a security door next to the rolling shutter door. Zhou Ning pushed the security door open and found that it was connected to the underground parking lot.

The moment he turned around, Zhou Ning paused and his eyes were attracted by a pattern on the wall.

Thanks for the tip no matter what!
Chapter completed!