Forensics

Penang City Council, Center for Forensic Medicine.

With shadowless lights shining, Shen Junci specially applied for the largest dissection room in the city bureau today for the autopsy. Three dissection tables were displayed side by side, and a charred black corpse was placed on each dissection table.

The black charred corpse was hard to recognize, and it smelled like a paste. Although it was not as shocking as the rotting corpse, it looked a little scary.

From left to right are father, mother and daughter.

Shen Junci shuttled between the dissecting tables, and said calmly: "The daughter's body is the most important thing, let's save it for the last, let's check the other two first."

They started with the first male corpse. Facing the corpse, Shen Junci pressed the recording pen to start recording: "Qiao Longfan, aged 49, 1.7 meters tall, the skin on the body surface was not burned except the back and inner thighs. Outside the burnt area, the rest of the corpses were carbonized, the bones of the left foot were charred and incomplete, the skin of the calf and the chest were cracked due to dryness, and there were also wounds left by the fire..."

Qi Yi'an followed suit, and the wounds on his body were easy to distinguish. Generally, the wounds left by fires are relatively shallow, and the wound walls are not smooth and flat.

Then Shen Junci observed the nasal cavity of the deceased, and then pried open the lips of the deceased to have a look: "Part of the soot can be seen."

Qi Yi'an looked at it with a lighting tool: "Then looking at it this way, it is very likely that it was burnt to death?"

Whether there is soot and charcoal in the respiratory tract is an important basis for judging the cause of death. If the deceased was able to breathe before death, it is likely that he died in a fire. After death, cremation will only leave a small amount of soot on the mouth and nose of the corpse.

Shen Junci said cautiously: "Don't jump to conclusions."

He looked at the dead man's head again: "The skull is fractured, and the bone fragments bulge radially, which should be caused by the expansion of intracranial gas."

Such scars are sometimes formed on corpses that have been burned at high temperatures.

Simply put, this is a headshot from the inside because of intracranial pressure.

The charred corpse formed a hard shell, which was so difficult to cut that it was almost impossible to cut through it with a scalpel.The two of them worked together and used various tools, including cutting and prying, to cut open the surface of the corpse.

After the inspection, Shen Junci straightened his gloves and said to Qi Yi'an, "Get ready to pick out your tongue."

This "tongue out" is a forensic term, which means that after the sternum is removed, an incision is made from the lower jaw, and the tongue, epiglottis, larynx, esophagus, etc. are pulled out. Skilled forensic doctors can even completely remove a set of internal organs of the deceased.

After finishing the preparations, Shen Jun resigned: "I will demonstrate it first, and you can operate the mother's one later."

Then he straightened his gloves, and inserted his fingers into the incision on the dead man's jaw. When his fingertips touched his throat, he made a light puff.

Under the shadowless lamp, Shen Junci's delicate brows and eyes were focused.

Qi Yi'an saw his slender fingers move, as if some mechanism had been pulled.With a bulge in the throat of the corpse, the tongue and epiglottis were exposed.

Shen Junci went down, it seemed to be a breeze, the whole string of tongue was pulled down from the airway, and all internal organs were separated from the body one by one.

Although the outside was scorched, the internal organs were not affected much. The texture of the internal organs was like smooth jelly, and it was a bunch of heavy in the hand.

Now it can be clearly seen that there is also a small amount of congestion and soot in the respiratory tract of the deceased.

Qi Yi'an said: "There is soot, can you confirm it?!"

Shen Junci still shook his head: "The amount is very small, and it cannot be ruled out that he inhaled the powder while breathing weakly or in a dying state, and was subsequently burned to death."

Pointing to the internal organs of the deceased, he explained to Qi Yi'an: "Human bodies that burn to death alive will produce a large amount of carbon monoxide, which will combine with hemoglobin in the body to form carboxyhemoglobin, and the color of internal organs will be more bright red."

Qi Yi'an drew inferences from one instance: "I learned in this textbook that if you are poisoned by carbon monoxide, the spots on the corpse will also be bright red."

Shen Junci pointed it out to him: "Then what do you judge now?"

Qi Yi'an looked at the organs of the corpse in front of him: "Heart, stomach, liver, intestines, the color looks brighter than what I saw before, but it's not so bright red..."

The little forensic doctor didn't know how to draw a conclusion.

Shen Junci didn't make things difficult for him: "The deceased inhaled carbon monoxide, but the amount was not much. Let's draw blood directly, and then do a sleeping drug and toxicology test. I suspect that the deceased took sleeping or coma-causing drugs."

If you inhale carbon monoxide and poisonous gas during drowsiness, your body will become stiff and you will die directly in your sleep.

People who die like this will naturally not struggle.

Qi Yi'an took blood, chyme, urine and visceral slices and sent them to the toxicology room for testing.

Then they began the autopsy of the second body, this time that of Joshua's mother, the most severely burned body.

After the inspection, Shen Junci pointed to the corpse and said, "You can pick out your tongue."

Qi Yi'an also learned this section in class, but at that time the body was limited, and the whole class gathered together to watch the teacher operate it once, so there was no chance to practice at all.

Now is a great opportunity, Qi Yi'an was quite eager to try it at first.He looked at Shen Junci before pulling out his tongue and it was very easy, but when he came to him, it was not so simple.Either the incision was too small to get it out, or the associated fascia was not cut.

Pulling out the tongue requires skillful strength, Qi Yi'an was afraid of destroying the corpse, so he didn't dare to use brute force, he was so anxious that he broke out in sweat.

Shen Junci stood aside, quietly watching him busy, and only reminded him of various points when he encountered difficulties, and had no intention of helping him at all.

Qi Yi'an smashed the dead man's tongue.

It took him a full 10 minutes to take out his tongue completely. Holding it in his hand, it felt like a bunch of heavy grapes.

Qi Yi'an wiped the sweat from his forehead with his sleeve, and heaved a sigh of relief

The condition of this corpse was similar to that of Father Qiao's. After dissecting two corpses in succession, Shen Junci stood in front of Qiao Siwei's corpse again without taking a break.

He observed the mouth of the corpse, and snorted: "This corpse is quite special, with the least soot in the mouth."

Then he checked the surface and cut open the charred corpse: "There is blood in the abdominal cavity."

Then he poked the internal organs in the abdominal cavity to search carefully, and found a bleeding point after a while: "There was a small gap in the deceased's liver, depending on the size, it was stabbed by a sharp object like a screwdriver. It is likely that before the fire, She was seriously injured."

Because the wound was very small, and the scene was burned again, there were some skin wounds formed by high-temperature skin contraction on the abdomen of the deceased, which made the previous wounds hidden and difficult to find.

It was only now dissected that it was discerned.

In order to hurry up, this time Shen Junci did not ask Qi Yian to practice again, and he took out Qiao Siwei's tongue and internal organs. As expected, the airway of the corpse was very clean, without much congestion and traces of soot.

"The deceased died of hemorrhage caused by a ruptured liver, and the body was set on fire after death. The fire also burned Qiao Siwei's parents to death. This is a case of intentional homicide."

The computer on the side beeped a reminder, and Qi Yi'an went to check: "Estazolam is contained in both parents' hard work and urine. No wonder they didn't wake up when they were on fire."

Estazolam is a commonly used hypnotic and sedative drug. After taking it, people will sleep deeply, and the drug effect can last all night.

Shen Jun resigned: "You go to the toxicology room again, if the three people have drugs in their bodies, it is very likely that someone deliberately drugged them."

At the same time, Gu Yanchen was talking with Qiao Siwei's classmates in the repeating class with Baimeng.

After he contacted Qiao Siwei's former head teacher, he called the study committee member of the class.They chatted with the teacher first, and then began to ask the study committee about the situation.

The school committee is a little girl wearing glasses, she looks obedient and quiet.

"We are in the third class of senior high school. We have a lot of studies and don't usually have any activities. Qiao Siwei also has some contacts with the girls in the class. Except for asking me study questions, she doesn't communicate much with me."

"Qiao Siwei is a very nice person, very cheerful, very popular, and has many friends in the class."

"People outside the school? She hardly knows anyone outside the school..."

"Boyfriend? Absolutely not. She once liked a little star, collected some of his photos, and magazines, and sometimes gave them to other girls. She doesn't like boys in school at all."

"Her uncle once blocked her when she was out of school. I met that day. Qiao Siwei told me not to tell other people, for fear of being gossiped by my classmates."

Gu Yanchen listened for a while, then asked, "Qiu Xiaoxue is also in your class?"

When Qiu Xiaoxue was mentioned, the school committee's expression suddenly became a little strange, as if he had taken a bite of something sour: "I don't know Qiu Xiaoxue well, and we haven't spoken a few words in three years of high school."

Gu Yanchen found out sensitively: "What is the relationship between Qiao Siwei and Qiu Xiaoxue?"

The school committee lowered their heads: "Their relationship is quite good. There was a homework cooperation group, and they were in the same group, so the two became good friends."

Gu Yanchen asked: "About Qiu Xiaoxue, what else do you know?"

The school committee said: "Qiu Xiaoxue... Her parents seem to have reorganized the family, but the family is quite rich. She didn't want to live at home, so she rented a house near the school. She lived alone, and the rest I'm not sure."

She paused and said, "Qiao Siwei has a very good relationship with her. They are always inseparable. They will stay together during physical education class and go together after school. They will share any good things with each other. They even buy the same clothes. But it seems that the two had quarreled before, and something happened. I saw that Qiao Siwei and Qiu Xiaoxue didn't have a good relationship, but after a while, they got together again."

Gu Yanchen asked the school committee some more questions, and she said awkwardly: "I really don't know exactly what happened between them."

Gu Yanchen asked: "Then is there anyone in your class who has a good relationship with Qiao Siwei or Qiu Xiaoxue?"

The school committee thought for a while: "Yes, Qiao Siwei's deskmate might know something about it, but her university started early, and she seems to have gone to other places to report. You can call her later and ask her."

The girl's name was Shi Jie, and Bai Meng called her, and after several twists and turns, she got in touch with her head teacher. The girl had already started school, and she was currently undergoing military training, so she could only answer the phone after five o'clock in the afternoon to chat with them about the situation.

After the question here, Gu Yanchen said: "Let's go back to the city bureau first, and see the autopsy results from the forensic doctor."

At two o'clock in the afternoon, in the Penang City Council.

Gu Yanchen came to the forensic office after lunch, and the autopsy report and examination results were out.

Shen Junci handed Gu Yanchen a simple autopsy report: "Qiao Siwei died of serious liver injury, which belonged to posthumous cremation, and the other two corpses died of the combined cause of death caused by fire. All three of them took the same sleeping drug, and The dose is not small, I took their stomach contents, all three people had some undigested pickled fish fillets in their stomachs, it is likely that the medicine was dropped in the takeaway."

Gu Yanchen went to check Qiao Siwei's takeaway order, and immediately found a pickled fish in the message, the time was 06:30 last night.

All records of the electronic information can be searched. The police contacted the restaurant that made the pickled fish, and then followed the vines to find the delivery man who delivered the food last night.

Bai Meng went to make a phone call and contacted him to come to the city bureau.

The delivery guy happened to be delivering the food nearby, and after delivering the order, he rushed directly to the Special Criminal Division.

Since it was just yesterday's order, the delivery boy still had an impression: "I know this restaurant, they often order takeaway pickled fish, and every time they ask me to put it on the table at the door, and then they come to pick it up."

Bai Meng asked about the details again. Qiao's house is a self-built villa with a single courtyard. There is a gate on the outer wall of the yard and a door inside.

Usually, the outside door is only closed before going to bed at night, and the delivery staff just entered the door and delivered the meal to a table outside the house.

Bai Meng asked: "Have you confirmed that the takeaway packaging was delivered to the other party without damage?"

The takeaway shook his head: "I didn't pay attention to this. At that time, I still had a lot of orders, so I called their home. They said they would come right away. I put the takeaway at the designated location, and then left. When will they come?" I don’t know who got it. However, the pickled fish is well packaged, and when they receive it, they should be able to tell if someone has tampered with it.”

Bai Meng recorded the delivery man's confession, sent the delivery man away, and everyone from the Special Criminal Division came to the conference room for a meeting.Gu Yanchen wrote the victim's information on the left, and the names of Wei Yingtian and Qiu Xiaoxue on the right. These are the current main suspects of the police.

He drew a connecting line between the two ends, and wrote three words next to it: "Spicy fish."

Lu Ying deduced: "Assuming that the medicine was put in the pickled fish, the takeaway staff delivered the takeaway downstairs, and Qiao Sijia's people came out to pick up the meal. There may be a time difference between them. If someone picks up the meal before them, Put the medicine in the takeaway, and the poisoning can be completed."

The truth is true, but there are still many details that cannot be explained.

Bai Meng frowned, a little puzzled: "I know this pickled fish. It's a chain store. Their packaging is very good. The outermost bag is stapled and there is a sticker. One layer, one layer of insulation bag on the outside, and a plastic box inside, in order to prevent the soup from leaking out, it was wrapped with several layers of plastic wrap. The delivery man said that after he arrived, he called the family and informed the family to go downstairs to pick up the food. If the murderer It is not realistic to want to poison in the middle period."

Qi Yi'an also said aside: "That's right, and the Qiao family is not stupid. If the takeaway package is damaged, they will definitely not eat it. The medicine must be mixed evenly, otherwise it may be tasted. The murderer has such a long time to do it." These things?"

Hearing this, Shen Junci was thoughtful at the side: "It's too clumsy to directly inject medicine into it, and it's also very risky."

What should I do if I am caught?

Qiao Siwei's family will come out to get takeaway at any time.

Gu Yanchen frowned for a moment, and figured out the link.

He said, "It's too late to prescribe the medicine temporarily, but it's too late to get a takeaway."

Then he explained: "The murderer should be very familiar with the habits of Qiao Siwei's family, knowing that they often order pickled fish from this family. So he can buy a takeaway pickled fish in advance, open the package carefully, and be careful not to break the stickers, and then he Put the medicine in it, and then use the plastic wrap to restore it completely. He took the pickled fish to the door of Qiao Siwei's house, waited for the takeaway to put down the takeaway, and quickly changed the package. He only needed to bring a stapler and re-staple the list. That's it."

This entire process can be completed in just a few seconds.

After the change of position, the Qiao family would never find out that the pickled fish had been touched by someone. The strong smell of the pickled fish covered up the smell of the medicine, so they would take the sleeping pills without knowing it.

Bai Meng said: "Then I will ask this shop to export yesterday's takeaway order, maybe the murderer is inside."

Gu Yanchen reminded: "Before six o'clock in the evening, check out the takeaway orders of several chain stores."