In the dissecting room, a white shadowless light shines.
Under the shadowless light, Lao Zhang, wearing a white coat and holding a scalpel, was performing an autopsy on the corpse.
When Li Dongliao entered, Tan Wan was standing not far from the dissecting table and watching quietly.
"Team Tan arrived very early." He walked quietly to Tan Wan and followed her gaze to the autopsy table.
Liu Xiaoyan's chest was opened and Lao Zhang was cutting her left lung.
Lao Zhang: "There was a large amount of fluid in the lungs and obvious pulmonary edema. It can be basically concluded that he died from drowning.
Some microfibers and polyester threads, as well as a lot of dust, were found in the deceased's nasal cavity and mouth.
Apart from this, there were no external injuries on the body of the deceased.
A small amount of skin fragments were found between the deceased's fingernails. After DNA comparison, it was found that they were not the deceased's own. "
"Is it the murderer's dander?" Tan Wan continued to ask eagerly, "What is microfiber?"
"I'm not sure about this." Lao Zhang added, "I compared it in the database and couldn't find the corresponding person."
Immediately afterwards, Lao Zhang showed Tan Wan the fibers and polyester threads in the iron plate. At first glance, those things looked a bit like small woolen ends. They were entangled with moist dust. It took a careful look to see them clearly.
"I know this question." Li Dongliao suddenly popped up to answer Tanwan's question: "It is usually used as a material for some cleaning and wiping tools, such as rags."
"Yes, Officer Li knows a lot!" Lao Zhang burst out laughing.
Tan Wan tilted his head and cast an admiring glance: "I really can't tell. Do you still know this?"
Li Dongliao was very proud: "My aunt used to invest in a factory to make cleaning tools such as rags and mops. When I was a child, I went to work for her there!~"
Tan Wan used a clip to pull away the lump of dust and murmured, "This is strange."
"Why is it weird, talking about the team?" Li Dongliao came up.
Tan Wan: "That's strange. Liu Xiaoyan's room was very clean. Even the water in the bathtub when she drowned was clean and transparent. Where did all the dust and floating objects come from?"
She stared at this ball of dust in trance, frowned slightly, and then asked: "What about the time of death? Was it five or six o'clock yesterday afternoon?"
Because of the confession of the young couple downstairs, they said they only heard noises upstairs, and the time was after five o'clock.
Therefore, Tanwan subconsciously asked whether Liu Xiaoyan's death time was between five and six o'clock.
But Lao Zhang's answer surprised her: "No, the deceased has been dead for at least 26 hours.
The time of death was between three and four o'clock in the morning the day before. "
As soon as these words came out, even Li Dongliao was shocked, not to mention that it was too late.
Especially Li Dongliao, he couldn't help but ask: "Old Zhang, are you mistaken? How could it be three to four o'clock?"
Lao Zhang shook his head seriously: "I have been doing autopsies all my life, and I can't make any mistakes."
The situation was chaotic for a time.
If Liu Xiaoyan died 26 hours ago, then who was quarreling that the young couple heard? ?
When he thought of this, Li Dongliao instantly felt horrified.
The young couple said that they clearly heard the quarrel between Liu Xiaoyan and his son. The sound of the conversation lasted for a while. Both of them heard it, so there should be no mistake.
But Liu Xiaoyan had clearly died in the bathtub at that time, which completely overturned the young couple's confession.
Leaving aside the confession of the young couple, there is still something puzzling.
"But..." Li Dongliao frowned and paused before continuing, "According to what you said, Liu Xiaoyan was at three o'clock in the morning the day before. Wouldn't it be a few hours after the murderer killed Gao Meizi? , went to Liu Xiaoyan's house and killed her.
This is completely impossible in terms of time! "
This seems almost impossible to outsiders, absolutely impossible!
The location of the Red Heart Orphanage is halfway up the mountain, and Liu Xiaoyan lives in a rental house in the city center.
City A is very large and the roads are extremely complicated.
If the murderer drove to the city center immediately after killing Gao Miko, the journey would take at least two and a half hours. If he took other means of transportation, it would take even longer.
In this way, killing people quietly and leaving a message becomes even more tight in terms of time.
Lao Zhang added: "By the way, one more thing, the limbs of the deceased have traces of being reshaped by hot water."
"What is reinvention?" Li Dongliao asked.
Lao Zhang patiently explained: "It is to change the appearance of the deceased's limbs. The body will gradually stiffen half an hour to three hours after death. If you want to correct it, you must first soften the knee joints. After softening, you can adjust the posture."
Li Dongliao was confused: "Ah, why bother? Didn't the deceased drown?"
"Old Zhang, you want to say that the body has been transported, right?" Tan Wan said, "And the murderer just wanted to cover up the situation that the body had been transported, so he faked this illusion."
"Yes, I also prefer that the body has been moved." Lao Zhang pointed to the arm on the left side of Liu Xiaoyan's body, "Look here.
The corpse spots on the deceased's body were concentrated on the deceased's knees and left arm. "
Corpse spots are caused by the cessation of blood circulation after death, and the blood in the cardiovascular system lacks power and accumulates along the vascular network in the lower parts of the corpse. It is the result of empty blood vessels in the upper parts of the corpse and congestion in the lower blood vessels of the corpse.
To put it simply, blood is attracted by gravity to form corpse spots.
In addition, the limbs of the corpse were softened and adjusted. The two factors come together, which also means that the deceased was placed horizontally for a long time after death.
Soon, Tan Wan realized something: "Liu Xiaoyan's home was not the first crime scene."
There is no surveillance in front of Liu Xiaoyan's home. The most recent place where there is surveillance is a convenience store opposite the building where Liu Xiaoyan lives.
It's said to be a convenience store, but it's actually a canteen.
The manager of the canteen is an old woman, who is as deaf as the landlord.
Li Dongliao communicated and negotiated with the other party for a long time before asking for the surveillance videos of the past few days.
Tan Wan adjusted the surveillance video time forward a lot and accelerated the viewing of the video.
To transport the body, you must use a car, but if the body is loaded into the car and entered into the community, they will not be able to tell it apart from its appearance.
Therefore, Tan Wan asked Li Dongliao to record the license plate numbers of the vehicles that had entered and exited during that period, and she wanted to investigate suspicious vehicles one by one.
Suddenly, a tall silver truck came into view.
The truck has the four characters "Niu Lala" stuck on its body. It is a truck specially used for express delivery of large items.
The gates of Liu Xiaoyan's community are not widely spaced, so it was very difficult for this tall silver truck to drive into the community.
The car body got stuck in the doorway and I had to adjust it several times before I managed to get in.
Li Dongliao didn't think much and also recorded the license plate number of the truck.
Watching the surveillance video from beginning to end, Li Dongliao wrote more and more license plate numbers in his notebook, accumulating nearly 50 license plate numbers of different cars.
Looking at the piles of license plate numbers, Li Dongliao took a deep breath: "What a big project..."
