Human beings are more willing to retaliate against harm than to repay good intentions, because gratitude is like a heavy burden, while revenge is full of pleasure.

——Tacitus

1

"A dozen years ago, a dark and windy night, I was still in college. Suddenly, a rustling sound came from the water room. Our roommates took the courage to go and saw that a college classmate was washing a machete with a special shape in the water room. After washing, he cut a piece of sweets and distributed it to his roommates." As soon as he went to work in the morning, he saw Dabao sitting in the office telling stories to several young female colleagues in the DNA room.

When Dabao saw me in, he nodded at me, and then continued to tell the story: "Just just as everyone was having a feast, he looked at the machete in his hand with admiration and said, "Is the knife good?" We were not interested in seeing what kind of knife he was, and nodding while eating melon. Then the buddy suddenly said gloomyly: 'This knife was stolen in the anatomy teaching and research room.' When everyone heard this, everyone stopped chewing and looked fierce. But he added lightly: 'It's okay, I washed all the minced meat on it.'"

"Huh..." Several female colleagues were disgusting.

Dabao even more flirted with a gaze: "That kind of knife is used to dismember corpses for local anatomy teaching. It is the kind of corpse specimens used for disinfection and fixed in the school. We have seen that kind of knife, but no one cleanses it. After dismembering it, it is placed in the tool box of the dissection room. It is covered with fat, muscle fiber, etc. Now you know why my mother teaches us that the things given by others cannot be eaten?"

DNA technicians generally graduated from biology and genetics. They are not medical students. After hearing Dabao's vivid description, they naturally couldn't stand it. One of the female colleagues said: "It's not just things given by others that cannot be eaten. I won't even eat candied melons in the future."

"Are you sure?" Dabao smiled wickedly, "I saw two sweet melons in your office just now, otherwise, you can bring them to me?"

"You foodie." I knew that Dabao had a purpose when he told a story. "Even girls' snacks are cheated."

It’s another leisure day. Our daily work is either to collect damage assessment or bone age assessment, or to write a petition review report. Without cases, the work pressure will not be that great, but in this way there will be no challenges. What’s more, there are “June 3 Special Project” that has been pressing in my heart and cannot relax at all.

Just after the weekend, I fell into a lazy state again. I sat on the chair, stretched my waist, turned on the computer, prepared to write a report, and applied for two new and more powerful on-site investigation boxes. However, as soon as the Word document was opened, the long-lost inside phone rang.

Dabao, who was gnawing on the melon, heard the phone ringing, and immediately widened his eyes, chewing, and pointed at the phone while asking me to answer the phone.

I saw that the corner of his mouth was still stained with melon seeds, so I smiled helplessly and answered the phone.

"Hey?" I said, "Hello, Section Chief Sun. What? Four? Are there any accidents?"

Dabao stopped chewing and was looking forward to me giving instructions to him.

I hung up the phone and said, "A family of four died in Qingxian."

"Murder case?" Dabao asked with a mouthful of melon in his mouth.

I said: "The explosion case may be an accident. But after so many people died, we have to go to the scene. I called Lin Tao and Han Liang."

Dabao smiled and swallowed the melon slowly, saying, "I will not get hemorrhoids when I go out to survey the scene, yes!"

Qingxian is a county under Qingxiang City, and its economy is relatively backward. The site is located in a suburb on the east side of Qingxian County. When we arrived at the scene, at least 30 police cars blocked the entrance of this small village tightly, so we had to get off the car and walk into the village. The seriousness of the incident can be seen from the number of police cars.

After entering the village, hundreds of police officers had almost filled the not-so-spacious rural path. Not far away, we saw that the glass of the two-story houses on both sides of the road was broken.

"Be good, the power of this explosion is really great." Dabao looked around at both sides, "It's so far. I haven't surveyed the explosion before. Looking at the scene, it's a bit scary."

"I haven't taken any inspection either," said Lin Tao. "Will your life be in danger when you tell me that the scene of such an explosion case is in danger?"

"Please go to his way to get promoted and get rich. Don't enter this door if you are greedy for life and fear death." I said, "This is a couplet from the Whampoa Military Academy, and it also applies to our police."

"There was an accident twenty years ago." Han Liang said, "When a forensic doctor was investigating the scene of an explosion, he accidentally touched the detonation device arranged in advance by the criminals, causing another explosion at the scene. The forensic doctor died bravely."

"Well, I know this." I said, "that forensic doctor is my senior brother."

Along the way, there were villagers in groups of three or three, being questioned by the police.

"I tell you, you were not present at the time and you could not feel that kind of horror at all!" A villager said in a panic, "It's past four o'clock this morning, and it's less than five o'clock. At that time, we all went to bed. Suddenly, there was a 'bang'. The sound was not like setting off firecrackers, like a bomb throwing a bomb on the plane. Then our house began to shake, buzz, and the glass was broken. I was tinnitus at that time, and I saw my wife's mouth open, and I couldn't hear what she was saying. I thought it was an earthquake, so I pulled my wife away and ran down, and saw smoke coming out of Lao Fan's house. Only then did I know what kind of earthquake was. It was simply an explosion. It must be the explosion of Lao Fan's family, so I called the police."

"I'm so fucking unlucky," said a villager with gauze wrapped around his head. "At that time, I happened to pee in the hut, and a piece of glass hit me on the head with a 'boom'. I've had seven or eight stitches. Why am I so unlucky? Does anyone care about this? Should the government compensate? Every family in our village has suffered losses, so the government has to take care of it?"

"The old Fan family said that their home is a Fengshui treasure land every day." Another villager said, "It's just that his home is next to the village. There is no cover outside the window. What Fengshui treasure land? Look, this has exploded, and it's also a Fengshui treasure land."

The explosion site was a family located at the easternmost end of the small village, named Fan Jincheng. Because this house is located in a corner of the village, except for the gate, all directions face the wilderness and have a wide view. From the inside of the house, it is indeed a good place.

The Criminal Police Brigade of Qing County Public Security Bureau requisitioned the living room of a family next to the scene as the meeting room of the temporary task force. The small eight-immortal table was crowded with people. After the three of us walked into the living room, several young police officers stood up and gave up their seats.

"Hello experts," Zhou Qiming, director of Qing County Public Security Bureau, said with a serious look, "Thank you for your hard work. We have been quite quiet for most of the past six months. I didn't expect that after the Mid-Autumn Festival, such a big case was posted. Oh no, it was an incident."

Public security organs like to call criminal acts a case, while some suicides or accidental deaths are called events, which leads to the saying of abnormal death cases (events).

"Has it been determined?" I asked.

Director Zhou shook his head and said, "The site is sealed, and I haven't dared to move yet. The technicians are waiting for you to come before starting work. Therefore, the specific situation on the site is not known yet, and the nature is not determined. However, I guess it is very likely to be an accident."

"Oh?" I said, "I hope to hear it carefully."

Director Zhou cleared his throat and said, "The scene was a family named Fan Jincheng, and the family was the old couple Fan Jincheng. However, after the police from the police station looked at the scene, they confirmed that there were four dead people at the scene."

"Are there any outsiders?" I said in surprise.

Director Zhou shook his head and said, "No, it's his family. The body identification work has been basically completed. It is confirmed that the four deceased were Fan Jincheng, Fan Jincheng's wife Ren Sufen, as well as the grandson of the old couple, the fifteen-year-old Fan Cheng, and the granddaughter of the old couple, and the seven-year-old Zhao Liqian."

"Two children." I don't think of the sudden death of the child the most, and I always feel that it's too pitiful.

"Well," Director Zhou also looked sad, "The two children spent the weekend at the old couple's house. Today on Monday, the two adults were preparing to come here to pick up the children early in the morning and then send them to school. Unexpectedly, something happened before dawn."

"Why do you think it's an accident?" I adjusted my emotions and asked.

Director Zhou said: "First, when the police officers of our police station arrived at the scene, they found that the gate of the scene was locked and kicked open by the police forcefully. And after investigation, Lao Fan and his two grandsons had a lot of fun this weekend, and it was impossible to commit suicide. Second, after the police officers of the police station entered the scene, the damage to the house was mainly concentrated in the kitchen area at the east end of the courtyard. The village was connected to the pipeline gas. After the police entered, they found that the gas pipe was blown off and was still spraying gas outwards. So they quickly coordinated the local area to close the main gate. Judging from this sign, it is very likely that the gas leak, the gas and air mixed to reach an explosion concentration, and happened to encounter an open flame or the circuit was powered on, causing an explosion."

"Oh." I nodded, "It makes sense."

"After all, four people died and two children," Director Zhou added. "The city and the county attach great importance to it and ask us to find out the cause of the explosion as soon as possible and deal with it properly. The first step now is to figure out the cause of the explosion. The fire department has come before you, but has not given a definite conclusion. They have extracted some of the inspection materials and taken them back for inspection. However, the inspection results will take a day or two to know."

I took the scene map drawn by the investigator and looked at it slowly.

"How do you do your work?" Director Zhou asked.

I said, "First of all, we have to go in and see the scene. Then please ask the comrades of the funeral home to transport the body away first. It is not a good effect to put it here. Then, I guess I have to go to the scene and near the scene to collect some explosive residues and throws, and then make a decision."

"Okay." Director Zhou said, "Then you start, we will wait for the results. The investigation department is also doing some peripheral investigations."

After walking out of the task force conference room, we began to wear exploration equipment.

Lin Tao said: "I'm a little surprised. Why are four people, especially two children, near the kitchen at around four o'clock in the morning? If they are in the room, there is a wall block, it will not cause death? Shouldn't they get up so early to have breakfast? Don't the children go to school at 8 o'clock? Is it necessary to get up so early?"

"What you said really makes sense." As soon as Lin Tao reminded me, I began to become alert, "There is indeed a problem with time."

"This is indeed troublesome. All four of them died, and there is no evidence of death. Who should we ask?" Dabao said.

I said, "Ask the scene, ask the body."

2

After entering the site gate, there is a small courtyard. Opposite the gate is a two-story building, which is the main room. To the east are two bungalows, a kitchen and a bathroom. To the west are a row of bungalows, with a lot of miscellaneous items piled up in it.

The windows of several houses have all been broken, and the roof of the kitchen collapsed, making it a mess. The power of the explosion can be seen.

The corpses of two children were lying in the center of the courtyard. The little girl's head was stained with blood and there were some broken bricks around her head. The boy's front bra was broken and there was a large piece of blood on his chest, so he couldn't see where the wound was.

A corpse of an old woman was lying at the door of the kitchen. The front of the clothes was completely broken, and the head, face, neck, chest and abdomen were burning black. It can be seen that Fan Jincheng should be lying in the kitchen.

We simply looked at the corpse tables of the three corpses, took photos and fixed them, and asked the staff of the funeral home to put the corpse bags and transported them away. After the corpse was transported out, we clearly heard a noise outside the yard.

Next was the center scene, and we walked into the kitchen carefully. The kitchen itself was a brick and tile structure, and it was blown up like this and became a dangerous house. Cracked on the walls of the house were everywhere. A piece of roof had collapsed, and a piece of rubble covered a corpse. Only the body was exposed above the chest.

The kitchen was messy, and the windows on both sides were gone, leaving only broken window frames. The stove, water tank, pool, and cupboards in the kitchen had collapsed, and fragments of pots and pans were scattered all over the ground. The exposed gas pipeline was wrapped in rags by the police officers. As soon as they walked into the kitchen, they could smell a burnt smell, which seemed to be mixed with the smell of gunpowder.

The corpse buried in bricks and tiles, because of the carbonized skin, adhered to ashes, can only be seen in human form and cannot see clearly.

"There is no burning mark in the entire courtyard." Lin Tao said, "All the damage is basically concentrated in the kitchen, and the windows on both sides of the kitchen have completely broken. Now it is basically certain that the heartbreaker is located in the kitchen."

For on-site investigation of explosion cases, the first thing to solve is the location of the explosion.

"It is not enough to just determine the general position of the explosive heart." I said, "The explosive heart we want to study must be accurate to at least within half a meter, so that it will make sense."

"What's the point?" Lin Tao said.

"I can't explain it clearly," I said, "and let's talk about it when we can confirm our heartbreak."

I saw Dabao taking photos of Luo Lintao, so I walked out of the kitchen alone and into the bedroom of the main building.

The floor of the bedroom is very clean. It seems that the rescuers saw four dead people around the kitchen, and no one walked into the bedroom any further. The main building is a two-story building. In addition to the living room, there is also a bedroom on the first floor. The bedroom is colorful and there is various "paintings" painted on the walls. It can be seen that this is the child's room. On the bed of the room, two thin quilts are lifted, and there is also a pair of red slippers on the ground, which looks like they are the slippers of the little girl.

"Run out without wearing shoes?" I frowned and thought, maybe Lin Tao really made a fuss. There are some hidden secrets in this case.

Walk along the stairs next to the first floor bedroom to the second floor. In addition to the foyer, there are three bedrooms on the second floor. Two of them are piled with some debris. On the other center bed, two thin quilts are also like the first floor, and the ceiling lights of the bedroom on the second floor are on.

I thought about it all the way downstairs and saw Dabao waiting for me in the yard.

"How is it?" I asked, "Has the body been dug out?"

Dabao frowned and shook his head, saying, "You don't need to dig it, you'll get out as soon as you pull it. Only half is left."

"So serious?" I quickly walked into the kitchen and saw half of the body lying above the rubble in the center of the kitchen.

The body was broken from about the umbilical position, and the soft tissue at the broken end was burnt. From the broken end of the abdominal cavity, you can see a bunch of intestinal ducts hanging softly on the outside of the corpse, black mixed with green. Some intestinal ducts have been blown up, and yellow feces are scattered around. The dark red liver is exposed at the break end, emitting a fishy smell. Because of the huge power of the explosion, the deceased died quickly and did not have much bleeding. The only bleeding was also burned by the high temperature.

After the body was dug out, the entire kitchen was filled with the fishy smell in the abdomen of the human body, covering up the original burning smell.

I rubbed my nose, put a layer of gauze gloves on the outside of the rubber gloves, and started to turn over the rubble.

"Does all the rubble need to be cleaned?" Lin Tao asked.

I nodded and said, "We need to find the body as much as possible. One is to respect the deceased, and the other is to judge the direction of the explosion force from the distribution range of the body."

"Then there are probably more than just these rubbles that need to be cleaned, right?" Lin Tao looked at the collapsed roof and the open front in front of him, with no windows left.

"Yes." I said, "From the current situation in the kitchen, there are not many corpses. These shattered corpses were thrown out of the house because of the huge explosion. So, we must at least find them along the direction of the window to see how far the corpses exploded."

"It's not just a corpse," said Lin Tao. "Let's do it, we divide the work and cooperate. You take the forensics to find the corpse, and I take the technicians to find physical evidence that may be related to the explosion."

I nodded and continued to search for the rubble in the kitchen.

Dabao took out a construction-used hard hat from outside and said, "Wear it, maybe the house will collapse."
To be continued...