Attending ex-girlfriend's wedding, arresting the groom's officer on the spot

While taking careful notes, Xiao Lin used a camera to photograph the deceased's clothing and damaged areas as evidence. At the same time, she assisted Zhang Kai in carefully removing the deceased's clothes, placing them in a designated sealed bag, and marking it. Further examination will be conducted to look for traces and physical evidence on the clothing.

After removing the clothes, Zhang Kai continued to conduct a detailed examination of the deceased's torso and limbs, saying, "The deceased's torso has intact skin with no obvious external injuries. There are no bruises, knife wounds, or needle marks on the chest and abdomen. There is no tenderness in the ribs and no signs of fracture. The skin on the back is intact with no external injuries and no obvious drag marks, but there is a small amount of dust on the waist, which is presumably caused by the friction between the waist and the ground when the deceased was dragged."

"The limbs have no obvious deformities, joint movement is normal, there are no signs of fractures or dislocations, the skin of the limbs is intact, there are no knife wounds, needle marks, or bruises, only a slight abrasion on the right wrist, the abrasion area is about 1×2 cm, the color is light red, it is presumed to be caused by slight friction, there is no obvious bleeding."

"Teacher Zhang, there are no obvious fatal wounds on the deceased's body. There are no knife wounds, gunshot wounds, or obvious signs of suffocation. The blunt force injury on the forehead is not enough to cause death. So what is the cause of death?" Xiao Lin looked at the deceased's body with a puzzled expression and couldn't help but ask.

Zhang Kai remained calm and said, "The absence of obvious fatal wounds on the body surface does not mean there are no fatal wounds. Many fatal wounds are internal, such as ruptured internal organs, poisoning, and intracranial hemorrhage. We will proceed with the autopsy, focusing on examining the deceased's internal organs, especially vital organs such as the heart, liver, spleen, kidneys, and brain, to check for any damage or abnormalities. We will also examine the deceased's digestive and respiratory tracts to rule out poisoning and suffocation, and determine the specific cause of death. In addition, by examining the degree of decomposition of the internal organs and considering the scene, we will determine the time of death."

After saying that, Zhang Kai picked up the scalpel, prepared for the dissection, and said to Xiao Lin, "Get ready to start the dissection. Begin with the chest, make a Y-shaped incision, starting from both sides of the shoulder and going down to the pubic symphysis. Cut through the skin, subcutaneous tissue, and muscles layer by layer to expose the thoracic and abdominal cavities. Be careful not to damage the internal organs. Be gentle and meticulous."

"Understood, Professor Zhang!" Xiao Lin immediately assisted Zhang Kai, adjusting the angle of the dissection table while preparing to record and photograph the process. Holding a scalpel, Zhang Kai carefully made the first incision on the deceased's chest. The scalpel was sharp; with a gentle cut, the skin was severed, exposing the subcutaneous tissue and muscle. Zhang Kai dissected layer by layer, his movements gentle and precise, avoiding damage to internal organs. Xiao Lin stood by, diligently recording each step and photographing the dissection process to ensure every detail was clearly documented.

After more than ten minutes of work, Zhang Kai finally cut open the deceased's chest and abdomen layer by layer, exposing the internal organs inside the thoracic and abdominal cavities. Under the light of the operating lamp, the shape of the internal organs was clearly visible. Zhang Kai carefully examined each organ, and while examining them, he said to Xiao Lin, "Xiao Lin, look, there is no blood or fluid accumulation in the deceased's thoracic cavity, both lungs are normal in shape, light red in color, without edema or rupture, and there are no foreign objects or traces of bleeding in the bronchi and trachea, ruling out the possibility of death by asphyxiation due to airway obstruction."

"The heart is normal in shape, of moderate size, with a smooth surface, no bleeding or rupture, no stenosis or blockage in the coronary arteries, no myocardial necrosis or inflammation, and no thrombus in the heart chambers, ruling out the possibility of death due to heart disease." Zhang Kai gently lifted the heart with tweezers, examined it carefully, and then placed the heart on a tray for further examination.

"The liver is normal in shape and size, reddish-brown in color, smooth in surface, without rupture, bleeding, tumors, or inflammation, and liver function is normal, ruling out the possibility of death due to liver damage or disease. The spleen is normal in shape and size, dark red in color, without rupture, bleeding, or enlargement, ruling out the possibility of death due to hemorrhagic shock caused by spleen rupture."

"The kidneys are normal in shape, of moderate size, dark red in color, and smooth in surface. There is no rupture, bleeding, stones, or tumors. Kidney function is normal, ruling out the possibility of death caused by kidney damage or disease. The digestive organs such as the stomach, small intestine, and large intestine are normal in shape, with no rupture, bleeding, or inflammation. There is a small amount of undigested food in the stomach, mainly rice, vegetables, and a small amount of meat. It is estimated that the deceased last ate about 2 to 3 hours before the incident."

While taking careful notes and nodding, Xiaolin used his camera to take photos of the internal organs from multiple angles as evidence. He said, "Teacher Zhang, it seems that there is no obvious damage or abnormality to the vital organs in the deceased's chest and abdominal cavities. So what is the cause of death? Could it be poisoning?"

Zhang Kai nodded, his expression turning serious: "Poisoning cannot be ruled out. Although there are no obvious injuries to the body surface and internal organs, many poisoning symptoms do not leave obvious traces on the body surface and internal organs. Laboratory tests are needed to determine whether poisoning has occurred, as well as the type and dosage of the poison. Next, we will examine the deceased's brain to see if there is any intracranial hemorrhage, brain contusion, or other abnormalities. At the same time, we will collect blood, stomach contents, and liver tissue samples from the deceased and send them to the laboratory for toxicology testing to rule out the possibility of poisoning."

Zhang Kai then began the autopsy of the deceased's head. Using a scalpel, he made a circular incision around the head, starting from behind the ears and cutting through the skin, subcutaneous tissue, and periosteum layer by layer to expose the skull. He then carefully sawed open the skull with a skull saw, moving gently to avoid damaging the brain tissue. Xiao Lin assisted by gently peeling away the periosteum with forceps and cleaning up skull fragments, ensuring that the brain tissue was not damaged.

After more than twenty minutes of work, Zhang Kai finally sawed open the skull, exposing the brain tissue. He gently lifted the brain with tweezers and carefully examined its shape and structure, saying, "Xiao Lin, look, the deceased's brain is normal in shape, smooth on the surface, with no bleeding, no contusion, no edema, no necrosis or inflammation of the brain tissue, and no rupture or blockage of cerebral blood vessels, ruling out the possibility of death caused by intracranial hemorrhage, brain contusion, etc."

"So, the deceased didn't die from organ damage, disease, or intracranial injury; it's most likely poisoning?" Kobayashi said, his tone a mixture of certainty and doubt. (End of Chapter)