Chapter 121 Death of the Virgin: Autopsy of Mom
"Based on the temperature of the body, the time of death of the deceased was probably between 11:30 last night and 12:30 today. Just like Dean Zhang, judging from the shape of the knife wounds, the murderer stabbed the deceased several times after he fell to the ground."
Mu Mian paused and continued, "There is also a wound on the head of the deceased, which shows signs of life. It was a wound caused before death."
Xiao Zhang analyzed: "The case may have happened like this. The victim was knocked unconscious by someone hitting her with a vase and fell to the ground. Yanyan thought she was dead and tried to save her with a magic wand, which was the fruit knife, but ended up stabbing her to death!"
Chen Xue retorted, "But the murderer hit the victim with a vase. Why didn't he kill her first and trick Yanyan into killing her? Wouldn't that be a waste of time?"
Fang Rui found vase fragments under the body. So the vase must have broken first, and then the victim fell. Or someone turned the victim over.
Fang Rui asked Sister Chen again: "Were you in the villa tonight? Did you hear the sound of the vase breaking?"
"At around eleven o'clock in the evening, Yanyan suddenly wanted to eat strawberry cake. I originally planned to buy him some tomorrow, but Yanyan rolled over and Ms. Jiang was particularly fond of him. So she asked the driver to take me to buy it. It was so late and it was raining, and I went to many stores before I found the strawberry cake. When I came back, it was probably around one o'clock in the morning. I saw Ms. Jiang lying on the ground covered in blood, and Yanyan was gone, so I quickly called the police."
"Did anyone come while Sister Chen was out?" Fang Rui said to the security guard.
"Probably not. After Sister Chen left, no one came in. There were only Ms. Jiang and Yan Yan in the villa. It's possible that a thief climbed over the wall to steal something. We have installed many cameras inside and outside the villa. You can check the surveillance."
"Are you and Yan Yan the only ones usually in such a big villa?"
"Yes, Yan Yan is very resistant to strangers. The chef, the cleaning staff, and the family doctor all live in the servants' room next door. Yan Yan hates noise, and this villa has additional soundproofing panels, so they should not be able to hear the sound."
Mu Mian felt that the smile on Jiang Yun's face was dazzling, so she covered her face with a white cloth to block her smile.
"Mu Mian, could she have also inhaled laughing gas?" Fang Rui reminded. He wanted to tell Mu Mian that Jiang Yun's expression was just because of the effect of the medicine, not because she favored another autistic child.
"There are no balloons here, no small steel bottles of laughing gas, and her facial muscles are not stiff... It's not the effect of the medicine, the reason is very warm, just as you guessed before, it's because of love, she was afraid that Yan Yan would be scared, so she comforted him with a smile, even though she was bleeding and her whole body was in pain..." Mu Mian's voice was very calm, without any emotion, but everyone inexplicably felt that she was very sad.
Mu Mian thought Jiang Yun just hated autistic children because autistic children were too troublesome and few people would like them. However, it turned out that Jiang Yun was so good to another autistic child. It turned out that she didn't dislike autistic children, she just didn't like Mu Mian.
But why don't you like her? Mom, Dad and sister all said that she was a genius and the cutest child in the world. Ms. Michelle also said that she was the best recovered autistic patient she had ever met.
Chen Xue and Xiao Zhang were about to comfort Mu Mian, but she said, "Everyone, help me carry the body into the car quickly. I want to complete the autopsy before dawn while the body is still fresh."
"..." Maybe it's not that sad.
Surveillance systems are installed at the gate of the villa, the entrance of the villa, and the bookshelf on the first floor of the villa, but the location where Jiang Yun was killed happened to be a surveillance blind spot. Fang Rui and his team spent a whole night checking the surveillance, but the surveillance video showed that no one had broken into the villa.
The surveillance camera on the bookshelf was facing the French window. The surveillance camera showed that at 11:11, Yanyan took a knife from the coffee table. About three minutes later, he appeared in the surveillance camera again, holding a bloody knife. He walked around anxiously at first, and then disappeared in the surveillance camera.
"Could it be that Yanyan first injured the deceased with a vase, and then stabbed the deceased to death with a knife?" Xiao Zhang guessed, "Every entrance has surveillance cameras, so this is the only possibility left."
"No, there are other possibilities." Fang Rui said.
-
In the autopsy room, Mu Mian calmly cut open the scalp of the deceased with a scalpel, turned it back and forth, and the subcutaneous tear corresponding to the wound was not large, with only slight bleeding.
"Mianmian, this doesn't seem to be caused by being hit by a vase." Chen Xue analyzed, "This doesn't look like a blow."
Mu Mian didn't say anything. She took out the most expensive imported electric saw from the tool cabinet. This electric saw will not have any debris when sawing bones, and it is very sharp. It can quickly saw through even the hardest bones.
"Mianmian, let me do it," Chen Xue wanted to take the electric saw, but Mu Mian dodged it.
"Chen Xue, everyone will die. It's nothing. This is a natural law that cannot be violated. If her body must be dissected, I hope I will be the one to dissect it."
"But Mianmian, you look..."
"Chen Xue, I'm a professional forensic doctor!"
Mu Mian turned on the switch and began to saw the skull of the deceased. The saw blade turned quickly, accompanied by a roar.
Mu Mian was wearing light blue goggles, so Chen Xue couldn't see her expression clearly. But Mu Mian was still so professional, and she sawed open the skull of the deceased quickly and steadily with the electric saw.
Mu Mian removed the skull, cut open the dura mater, and exposed the brain tissue in front of them. There was a hematoma attached to the brain tissue in the occipital part, and the size was not very large. There was also a slight hematoma on the corresponding forehead.
"It's a contra-impact injury! The wound was caused by the deceased falling down." Chen Xue said, "Maybe she fell on the fragments of the vase, and the fragments cut her scalp, making us mistakenly think that she was injured by the vase. No wonder I felt strange at the scene. If the deceased fell to the ground after being hit with a vase, then according to the force analysis, she should have fallen on her face. And the vase has a certain thickness and should not break when it hits someone."
Contra-impact injuries usually occur in accidents such as falling, tripping, or banging one's head against a wall. It refers to bleeding and contusion in the brain tissue corresponding to the wound, and bleeding and contusion in the opposite brain tissue, and there is no scalp damage or skull fracture on the opposite side.
This is because when the head is moving at high speed, the skull suddenly stops, and the brain tissue hits the inner wall of the skull due to inertia, causing bleeding and contusion on the opposite side. Contra-impact injuries can basically be confirmed to be injuries caused by decelerated movement of the head.
If it were in the past, Mu Mian would cut open the body of the deceased, carefully examine her internal organs, and dissect every part that could be dissected. But today, Mu Mian suddenly didn't want to continue the dissection.
The cause of death of the deceased was clear, and the cause of the wound on the head was also clarified.
Mu Mian carefully covered the skull back, put the various tissues back to their original positions, and finally took out the needle and thread and sewed her scalp back together.
She sutured perfectly.
Jiang Yun's smooth black hair had been cut off, and it was bald and not very beautiful. Mu Mian thought that she would buy a wig for Jiang Yun later to cover up the ugly earthworm-like seam.
But Mu Mian was very tired, so she would buy the wig later.
"Mian Mian, are you very sad? Do you need me to hug you?" Chen Xue asked.
Although Mu Mian pretended to be indifferent to Jiang Yun, she knew that Mu Mian cared about her biological mother very much. The reason why Mu Mian joined the Jiangzhou Municipal Bureau was because she wanted to find her mother's address through the internal identity card system of the police station.
How could she not care about her mother who she tried so hard to find?
"Chen Xue, I'm very sleepy. I want to go home and sleep. Tell Fang Rui and the others that the cause of death was excessive bleeding. The deceased fell down and no one attacked her with a vase."
"Do you want me to take you home?"
"I've already got a taxi."
"Okay, then you have a good rest!" Chen Xue was worried, "Mianmian, let me take you home."
But Mu Mian had already left the autopsy room.