Forensics

Near the end of August, at noon, by the bay of Penang.

The sun shines directly on the golden sandy beach, and the waves sound from far to near.

The temperature has heated up in recent days, and the number of tourists on the beach has increased again.

In the bathing beach of Penang Bay, there are people swimming in the sea, tourists basking in the sun on beach benches, and children are building castles with sand.

It was almost noon now, and many people began to go ashore to have lunch, and the number of people on the beach gradually decreased.

At this moment, a person in a diving suit floated up from the sea, and he floated near the water, dragging a petite woman in his hand.

When underwater, you can use the buoyancy of the diving device to rise up. Once you reach the surface, it will be more difficult to support a person.

"Help! Help!" The man vomited out the diving respirator he was biting, and shouted loudly.

Two lifeguards on the beach and some tourists hurriedly ran in that direction together.

Everyone rushed to help, stepped into the sea water, and pulled the man and the woman in his arms up.

The man staggered, and the woman was held in the arms of the rescuers, who then took off her oxygen tank and laid her flat on the beach.

The man was obviously fine, he took off his diving goggles, and shouted eagerly: "Please, save my wife!"

The lifeguard thought the woman was drowning and was about to perform artificial respiration on the woman. As soon as he put his hand on the woman's chest, he found that the touch was wrong.

Then they unbuckled the diving goggles for the woman.

The woman's eyes were still half-opened, and her body twitched slightly, making a ho-ho sound, and what she coughed up was not sea water, but a steady stream of blood overflowing from her mouth and nose.

Such a situation is obviously not drowning, and artificial respiration is not suitable for rescue. Those experienced lifeguards knew in their hearts that the woman's injury was an internal injury, and it might not be possible to save her.

The man leaned over and hugged the woman: "Wife, wife, what's wrong with you?"

The woman's eyes looked at him, but she couldn't utter a word. She twitched for a while, and her body didn't move.

Tourists on the beach were stunned by the sight for a moment, children screamed, and some people recorded the images with mobile phones.

The rescuers felt the woman's pulse and confirmed that she was dead. They stood up and said, "Call the police."

"Don't go to the beach! Something happened in Penang Bay, a woman died!"

"Was it bitten by a shark? Or is there a reason?"

"I don't know, the entire bay of Penang is closed, the beach is empty, and there is a long traffic jam from the bay."

"I heard it's for diving."

"I've heard that diving there is not safe!"

Relevant news quickly appeared on the hot searches in the same city. For a while, there were different opinions on the Internet, and a short blurred video was posted.

It took a total of about an hour from the city bureau to receive the report, assign it to the Special Criminal Division, and then the police rushed to the scene.

When Gu Yanchen arrived with his people, the police officers from the sub-bureau were already protecting the scene and clearing the bay.

Only a few police officers remained on the previously crowded beach.

On the way here, Bai Meng had already told everyone about the case. The two divers were a newlywed couple, the man was named Liao Yinghan, and the woman was named Zhong Xiaoke.

This is the last stop on their honeymoon trip.

The person in charge of Penang Bay walked all the way to introduce the situation to them: "Diving is a project that opened here five years ago, because there is a seabed about 30 meters deep in Penang Bay, and the underwater scenery is very good, so we developed it. After diving for fun, there are special rescuers here, and they will also conduct strict inspections on every diver. The couple both have diving certificates and their equipment meets the regulations. We checked the oxygen cylinders on their backs before going into the water in the morning. This is the first time something happened to our diving project..."

Zhong Xiaoke has been confirmed dead, and no one has moved the body, still retaining the posture of being rescued.The woman lay flat on the beach, with her eyes slightly open, and bright red blood flowed down her cheeks and neck from her mouth and nose, staining a small stretch of beach red.

Shen Junci stepped forward, put on his gloves, and looked around.

Today is a sunny day with high visibility, which is a good day for diving.The view here is very wide, the waves crash on the beach, and then slowly recede.

Qi Yi'an also walked to the corpse, and knelt down to examine the corpse.

Zhong Xiaoke put on makeup today, and especially used waterproof cosmetics. The sea water did not spoil her makeup, but at this time her face was covered with blood that she spit out, and there were some blood clots in the blood.

She was wearing professional diving equipment, with a diving certificate and a mobile phone in a waterproof bag in her pocket. Her oxygen tank and eye mask were taken off and placed on the beach beside her.

There was only sand and sea at the scene, and the footprints on the beach were messy, leaving basically no useful information.

Qi Yi'an recorded the basic information: "Female deceased, aged 29, named Zhong Xiaoke..."

Shen Junci took the scene in front of him as a question to test him: "Can you determine the cause of death?"

Qi Yi'an used the method of elimination: "It doesn't look like drowning..." The corpse obviously does not conform to the law of drowning.

Shen Junci said: "No."

"It might be an accident while diving. Could it be a jellyfish sting? Or a sudden underwater disease?" Qi Yi'an was a little uncertain.

Because the corpse was fresh and the blood hadn't coagulated, Shen Junci lightly pressed down on the chest of the deceased with his gloved fingers. With just a slight movement, blood that hadn't flowed out overflowed from the corner of his mouth.

Qi Yian frowned: "Such a large amount of blood loss, is it a heart and lung injury? Or stomach bleeding?" Then he explained, "I am a landlubber, and I have never dared to swim, let alone dive. I don't remember that it was recorded in forensic textbooks. .”

Human beings are fragile creatures. Compared with the strange ways of death in nature, what is recorded in forensic books is only a typical way of death.

Seeing that he couldn't figure it out, Shen Junci didn't make things difficult for him: "This kind of death is not common, but everyone who dives should know it. It is commonly called 'explosive lung' and some people call it 'explosive lung'."

After Shen Junci gave a reminder, Qi Yian understood and hurriedly started to record.

Gu Yanchen and several criminal policemen also surrounded him. When they mentioned the cause of death, they were a little unfamiliar with the term "lung explosion".

Shen Junci gave them a more popular explanation.

"To put it simply, the deceased didn't spit out the air in his body during the process of floating up. Due to the change in air pressure, the volume of the air expanded, and in the end the alveoli burst and the lungs were torn apart. It was equivalent to a series of explosions in the body. "

Then he added, "Even if you are still alive when you go ashore in this situation, it is basically hopeless."

This is the principle of middle and high school physics. Water pressure will lead to changes in pressure. When underwater, human lungs are like compressed small balloons. When it loses air and floats to the surface, the balloon will burst.

The elasticity of the alveoli is not even as good as that of a balloon. Hundreds of cracks explode in the lungs within a few seconds, and the entire lung function loses its function and becomes a bloody mass.

That's why the dead vomited blood.

This is a quick but painful way to die.

After hearing this way of death, Bai Meng hissed and covered his chest: "Just listening to the description, I feel lung pain."

Shen Junci said: "Actually, there are many kinds of diving accidents, the most common of which are drowning and decompression sickness. If you ascend quickly from a deeper place, it will also cause blood vessels and cells to burst."

Hearing this, Qi Yi'an rubbed his ears in fear: "I probably don't want to dive in this life..."

Lu Ying asked: "Then what might have caused her lung explosion?"

Shen Junci thought for a while: "There are too many possibilities. Exploding lungs in diving is usually taught by the instructor when learning to dive, but underwater tension, cramps, injuries, and internal diseases may cause the breathing device to fall. In an emergency In this case, the deceased may hold his breath and float up. It is difficult to assess the root cause from a forensic point of view."

The sun can shine down to about 30 meters under the sea.

At the time of the incident, the environment below the sea was unknown. Sometimes fish swimming past, flickering black shadows, any slight change would become a potential threat to divers.

Panic will make people forget all the learning and experience.

When a shock occurs, the first reaction of many people is that I want to float to the surface of the sea. If I forget to breathe at this time and hold my breath, I will definitely die.

Gu Yanchen analyzed calmly: "The deceased had a diving certificate, and this is not the first time she has dived. Please pay attention to keeping the deceased's oxygen cylinder, which is also an important evidence."

Bai Meng snorted: "There are no people under the sea, I'm afraid the only ones who know the truth are those fish."

Lu Ying turned her head and looked at Liao Yinghan who was explaining the situation to the police: "Isn't this her husband still alive?"

Bai Meng glanced sideways at the man: "I don't dare to believe my husband's testimony."

Lu Ying said: "You have to listen to what he has to say."

Gu Yanchen took over the information form recorded by the police assistant, on which basic information such as name, age, ID number, etc. had been written.

Zhong Xiaoke is a sales representative of a large pharmaceutical company.

Liao Yinghan is one year younger than his wife. He is 28 years old this year. He is a fitness instructor in a gym. They got married for a year and had no time for honeymoon before. Recently, his wife took annual leave, so they came out to play together.

Gu Yanchen was not in a hurry to ask her husband, he said to Bai Meng, "You can check two pieces of information for me first."

Bai Meng opened the notebook and sat on the beach.

Gu Yanchen said: "The first one is to check whether they have bought insurance."

In order to prevent insurance fraud, the policy information of high-value insurance has now been connected to the police system and can be searched in real time.

Bai Meng looked it up: "I bought it, high insurance, the husband and wife are mutual beneficiaries."

Gu Yanchen took another look at the man from a distance: "Second, check their pre-marital status."

After searching, Bai Meng said: "This man is married twice, but Zhong Xiao is married first."

By the way, Bai Meng searched the bank cards and related information of these two people: "Before Liao Yinghan married Zhong Xiaoke, he was almost moonlight. Zhong Xiaoke's financial situation was good, and he bought a house and a car by himself before getting married."

After understanding the information, Gu Yanchen took Lu Ying over.

Liao Yinghan's eyes were red, obviously crying for a long time before.

Gu Yanchen asked him: "Tell me, what happened today."

Liao Yinghan was taken aback. The previous policeman asked what happened underwater, but this policeman came up and asked what happened today. He began to recall, describing everything from getting up in the morning until they went into the water.

After finishing the recording, Gu Yanchen asked, "What was the process of your wife's death?"

Liao Yinghan wiped his face and said: "We went into the water around ten o'clock today, and we have been moving in a shallow place. We dived for a while and rested for a while. I have been not far from my wife. It is almost twelve o'clock. At midnight, I wanted to ask my wife to go back together, but when I turned around, I found that she didn't know what was wrong..."

Liao Yinghan sorted out her thoughts: "She was not biting the respirator at that time, and the devices were scattered around, as if she had cramps in her legs, or she seemed to be unable to breathe due to choking on water."

"Were you in front of her or behind her?"

"Behind me, about two meters away, I hurriedly swam to her side and gestured for her to relax. I wanted to give her my respirator, but she waved at me, and then I floated up with her. She was very anxious. Eager to surface, quick to move..."

Speaking of which, he held his forehead with his hands, as if he didn't want to recall the nightmare scene: "It is impossible to communicate and communicate underwater. At that time, we were all flustered, and my mind seemed to explode. Similarly, I can’t remember a lot of diving knowledge I usually learn. When I realized that we had surfaced, she began to vomit blood. I supported her and called for help. We are not far from the shore, and there are lifeguards on board. Before, saved us. But she... still can't do it. "

"You and your wife have both taken diving lessons?"

"Yes, I got my diving certificate a few years ago, and she passed it this year."

"Do you know what she died of?"

"I know, the diving instructor said about this situation, I didn't know she was holding her breath." Speaking of this, Liao Yinghan's nose and eyes turned red again, "When she dived today, she happily told me that she wanted to see The scenery under the sea, how should I explain to my parents and father-in-law..."

Having said that, Gu Yanchen noticed that the man's nose was bleeding.

He pointed: "You're bleeding."

Liao Yinghan hastily wiped it off with his hands: "It might be decompression sickness, we went up too fast."

Then Gu Yanchen asked him some usual questions about the relationship between husband and wife, and after the questioning, he asked the physical evidence to take him for a physical examination.

After a while, the physical evidence came back and said: "The nosebleed has stopped, and there is a small wound on his hand, which is located at the tiger's mouth on his left hand. It is said that he got it when he was picking starfish underwater."

Gu Yanchen asked: "Have the blood samples and DNA been taken?"

The physical evidence raised the physical evidence bag: "Qian Forensic Doctor took it with me just now, and everything is healed."

Only then did Gu Yanchen let him go and let Liao Yinghan go back first, waiting for the police to summon him at any time.

The first scene of the crime was in the sea. After the death scene on the beach was dealt with, Shen Junci's body had already been put in a body bag and was ready to be transported away.

Shen Junci asked: "Is the husband suspicious?"

Gu Yanchen said: "Underwater diving, apart from the wife is the husband at the scene, then there are only two possibilities in this case, one is an accident, the other is murder. The husband is suspected, and the key now is the evidence."

If there is no evidence, even if Liao Yinghan killed the person, there is no way to punish him.

There are surveillance cameras on the street, there are witnesses on the mountain, and the fire will leave clues, but if it happened under the deep sea of ​​tens of meters, if there is no proof of death...

This may be a 'perfect' wife killing case.