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

Observing that the deceased was thin, Zhang Kai further analyzed: "From the overall shape of the body, the subcutaneous fat layer is thin, and the muscle lines are present but not well developed, which is consistent with the measured weight and subcutaneous fat data. At the same time, some bony marks on the body are more obvious, such as the protruding clavicle, shoulder blade and other parts, which are typical characteristics of a thin body."

He held up the deceased's hand and carefully examined the nails: "The nails are neatly trimmed, with smooth edges and no obvious damage or dirt, indicating that the deceased had good personal hygiene and care habits. There is an indentation on the ring finger of the right hand from long-term wearing of a ring. The edge of the indentation is smooth and the depth is uniform, indicating that the ring has been worn for a long time and the size of the ring is relatively suitable. There is no skin deformation caused by being too tight or too loose. This trace feature can provide certain clues when judging the living habits and possible social identity of the deceased."

The assistant beside him carefully recorded every detail. Zhang Kai's explanation was not only an analysis of the characteristics of the corpse, but also a vivid forensic teaching class. Behind these seemingly simple basic information judgments are rigorous scientific methods and rich professional knowledge. Every data and feature may become a key link in uncovering the truth of the case.

He then raised the deceased's wrist and said, "Look carefully, there are bruises on the wrist left by the binding, which are distributed in a circular shape and are about 2 cm wide. The material of the rope may be the same as the rope groove on the male deceased's neck."

The assistant wrote quickly in the notebook and suddenly asked, "Doctor Zhang, are there any other injuries on the body surface?"

Zhang Kai used tweezers to flip open the victim's eyelids, and the pupils were already cloudy. "There are slight abrasions on the face, which are presumably caused by friction with rough objects during the struggle." He turned to the victim's neck and touched the purple strangulation marks with the tip of the tweezers. "The characteristics of suffocation are obvious. The strangulation marks extend obliquely upward from the bottom of the thyroid cartilage to behind the ears on both sides, with subcutaneous bleeding on the edges. They are typical strangulation marks. However..." He zoomed in on the neck, "There are signs of overlapping compression in the middle of the strangulation marks, indicating that the murderer had repeatedly applied force."

When the scalpel cut open the chest and abdominal cavity, Zhang Kai's movements suddenly stopped. He leaned over the body and focused the flashlight beam on the lower abdomen of the deceased: "There is a surgical scar about 20 centimeters above the pubic symphysis, which has healed for more than a year. This is the incision left by the cesarean section." He took out the uterus for examination. "The uterus is in normal condition, but both fallopian tubes have been tied. Combined with the age of the scar, it is speculated that the deceased chose sterilization surgery after giving birth."

In the observation room, Lu Chuan stroked his chin and said, "Getting sterilized at 25? This detail is crucial."

The autopsy entered the private parts inspection phase. Zhang Kai put on goggles and collected evidence in detail: "The deceased's lower body had lacerations and old internal ruptures, and semen stains were extracted. Under the microscope, epithelial cell damage was seen, indicating that he had violent sexual behavior before his death." He held up the evidence tube containing the swab, "In addition, the body fluids were low, and combined with the degree of decay of the body, the sexual behavior should have occurred within 12 hours before death."

The stomach autopsy also showed that the contents were empty, but Zhang Kai found abnormalities in the intestines: "Incompletely digested bayberry pulp and seeds were detected at the end of the ileum. This fruit is not in season and is an imported cold chain product." He handed the tissue sample to his assistant, "Focus on checking the supermarkets in the city that sell imported bayberries, and narrow the time range to the day before the death of the deceased."

Three hours later, the DNA test results made the case even more confusing. Zhang Kai walked into Lu Chuan's office with the report and reported: "Captain Lu, the semen stains in the female victim's body are exactly the same as the male victim's DNA type. In other words, the male victim had sex with the victim before the incident."

"You mean, the semen stains in the female deceased's body completely match the DNA of the male deceased?" "Yes, but the skin tissue in between does not belong to the male deceased."

Although these are just two simple DNA identification analysis reports that are different from each other, they reveal some of the nature of this case.

On the other side, Wang Shuai and others were still being examined in the hospital.

The musty smell mixed with the smell of disinfectant in the archives room of the First Hospital hit Wang Shuai in the face. He took off his police hat, and his forehead was still stained with rain from rushing on the road. When he handed the search warrant and the photo of the deceased to the archives clerk, the other party adjusted his reading glasses and lingered on the purple and swollen face in the photo for a moment, "This kind of heart stent surgery records have special numbers, and they have to be cross-checked in the computer system."

The cursor on the search interface kept flashing in the dark. Wang Shuai stared at the densely packed entries on the screen, his fingers hovering over the keyboard. The key information provided by Zhang Kai played in his mind: "Metal stent model LC-2019, surgery time around March 3 two years ago, long-term warfarin after surgery." He took a deep breath and entered the search conditions one by one. The moment he clicked the confirm button, the system suddenly popped up a warning box: "Too many search results, please narrow the scope."

"Are there any other details missing?" Wang Shuai's fingers turned white from the pressure he put on the autopsy report. He suddenly remembered Zhang Kai's additional explanation - "There was a slight inflammatory reaction near the stent, and it was speculated that the postoperative maintenance was improper." In a flash of inspiration, he quickly added the filter condition of "postoperative infection treatment record". This time, the scroll bar finally stopped after loading for 30 seconds, and five matching entries popped up on the screen.

"Can you print the medical records for the past three years?" Wang Shuai's voice rose unconsciously. As the paper documents came out, he locked onto the third report. The three characters "Li Kaijun" in the patient's name column were written so clearly that they could be seen through the back of the paper. The signature on the surgical risk notification form was exactly the same as the contract sample he found in Li Kaijun's office. More importantly, the medical record detailed that "local infection was caused by unauthorized discontinuation of medication after surgery, and a second debridement was performed on April 4, two years ago." This was highly consistent with the traces of inflammation found during the autopsy.

"found it!"

After confirming Li Kaijun's identity, Lu Chuan immediately formed a special investigation team and launched an in-depth investigation into him. Wang Shuai led a team to the jade shop run by Li Kaijun in the local area, trying to tear a breakthrough in his complex network of interpersonal relationships.

The Haizhou jade market was bustling with people. Li Kaijun's "Yuyuan Pavilion" was located in the core of the market. The store was decorated magnificently. The glass display windows displayed a variety of exquisite jade ornaments. The emerald green of ice jade and the warmth of Hetian jade exuded an attractive luster under the light. After Wang Shuai and others showed their credentials, they walked straight into the store. The manager who was greeting the guests turned pale when he saw the police. (End of this chapter)