It was rainy on the night of September 28, 3020.
In late autumn in the north, the night temperature is already less than ten degrees Celsius.
In the rainy weather, the temperature dropped sharply, and the pattering autumn rain beat on the doors and windows.
In the anatomy room, Lu Chuan was facing a pile of dead bones.
The skeleton identification and analysis report is nearing completion.
Now, what Lu Chuan is doing is analyzing the cause of death.
"Part of the broken sternum shows signs of collapse, which indicates that the deceased suffered a major impact during his lifetime."
Lu Chuan picked up the two ribs and compared them repeatedly, and found some differences.
There are differences in the broken marks of the two ribs.
One is a crush mark, where heavy objects crush the sternum and the force on the sternum exceeds the limit, causing it to break.
But the other kind of mark is not a crushing mark, but a shattering mark caused by a violent short-term impact.
The skeletal remains were found beneath the highway foundation.
Combined with this scenario, the crushing marks, as analyzed by Li Kai, were probably caused by the rollers rolling the road.
However, there will be no cracking marks from the impact.
Unless the deceased had been hit by a vehicle or other high-speed object before he was alive, then buried in the roadbed, and then crushed by a road roller.
In this way, two different signs of bone fracture will appear.
However, if it is a vehicle impact, the leg bones are most likely to be broken.
The reality is that there are impact marks on the sternum of the skeleton, but the leg bones are intact.
…
Lu Chuan did every analysis very carefully.
Any conclusion is supported by data, and only such a skeleton identification and analysis report can be convinced and become judicial evidence.
Four thirty in the morning.
Lu Chuan stretched, took the report from the printer, and let out a long sigh of relief.
Opening the window of the anatomy room, the fresh air with the unique smell of rain rushed into my face.
Lu Chuan's somewhat mushy mind cleared up and his spirit was slightly lifted.
The identification and analysis of the skeleton was finally completed.
"finished?"
Outside the crack room, Li Kai had received the news and came hand in hand with Wang Changjiang.
Lu Chuan nodded: "The skeleton is well preserved, and the Tianzhou City Criminal Investigation Detachment has advanced instruments, so the analysis this time is faster."
"That's great, Officer Lu, thank you so much!"
Li Kai took the report from Lu Chuan's hand and opened his eyes excitedly.
However, the content of the report gradually solidified Li Kai's expression.
"The deceased was... abused during his lifetime?"
Lu Chuan nodded solemnly: "This is basically certain, but whether it is abuse or torture, it is difficult to determine now."
"What is certain is that the deceased's sternum was struck with a hammer or other blunt instrument before his death, causing the sternum to shatter."
This was Lu Chuan's final conclusion about the different cracks in the deceased's sternum.
"The ribs on the chest of the deceased have two different fracture marks. In addition to crushing and shattering marks, there are also impact and shattering marks."
Lu Chuan took the report, pointed to the conclusion and analyzed the reasons: "It is unlikely that the vehicle was hit because the leg bones of the deceased are intact. This denies the possibility of the vehicle causing death and then burying the body."
"I just did a bone cracking experiment and found that the cracks in the deceased's sternum were probably caused by strong hammering with something like a hammer."
"Furthermore, there are six cracks with such marks on the skeleton. In other words, the deceased suffered at least six similar heavy blows during his lifetime."
"Generally speaking, this situation only occurs during torture or torture. And based on the analysis of the degree of bone fragmentation, of the six fragments, two are near the heart, two are in the lungs, and the remaining two are near the heart. They’re all on the left and right sides.”
"The ribs at the heart should be inserted into the heart, which is a fatal injury."
Hammering with blunt objects such as hammers caused fractures in the ribs and penetrated the heart. This was Lu Chuan's determined cause of death.
"One more thing," Lu Chuan turned the report to the end: "I conducted a rough analysis of the soil cleaned from the skeleton and found that there was sand and clay on the skeleton."
"This is abnormal, because the soil composition of a corpse burial site should be similar, and there won't be such a big difference."
"So, I suspect that the skeleton has been moved or the burial location has been changed."
"Of course, the location where the bones were found was under the foundation of the highway. It would be possible to transport earth from other places to build the highway. In that case, it is also possible that different types of soil would appear."
However, Li Kai shook his head: "I know that highway. It was originally a national highway. The foundation is very stable. It is unlikely that the earthwork will be transported from other places."
Building a highway is not the same as building a building.
Earthwork, which basically uses local materials, can also form drainage ditches, killing two birds with one stone.
"Officer Lu, Lao Wang, I want to hand this report to the detachment leader immediately. I will arrange for someone to take you to rest first."
Lu Chuan and Wang Changjiang nodded.
They are only here for technical support, not to solve crimes.
After staying up most of the night, Liu Guodong was feeling better. He had just rested for a while while waiting for Lu Chuan to do the appraisal and analysis.
Lu Chuan actually worked for seven or eight hours.
The high concentration, complex calculations and analysis made Lu Chuan very exhausted.
Lu Chuan and Wang Changjiang returned to the hotel arranged by the Criminal Investigation Detachment to rest. Li Kai and the others could not sleep.
Tianzhou City Criminal Investigation Detachment Case Analysis Conference Room.
The skeleton identification and analysis report has been sent to the detachment leader Wang Chuanmin.
"The deceased was a male. He was 1.78 meters tall and weighed 80 kilograms. He was forty years old at the time of death and his bones were buried for sixteen years."
“There were tophi on the ankles, the tip of the coccyx was worn more than average, and the bone density was lower than that of his peers. The deceased’s work style was sedentary and he lacked exercise, and his living conditions were relatively generous.”
"There were six cracks and fracture marks on the ribs on the deceased's chest. It was judged that the deceased had been abused or tortured before his death."
"The cause of death was determined to be that a hammer or other blunt object was struck on the chest, and the ribs were broken and inserted into the heart, causing death."
"Two different types of soil composition, sand and clay, were found in the gaps between the bones. It is suspected that there are traces of corpse removal after the skeleton was skeletal. The details should be determined based on the soil quality test at the crime scene."
Wang Chuanmin carefully read this extremely detailed skeleton identification and analysis report.
After a moment, he looked at Li Kai in disbelief: "Is this... really the analysis report made by Xiao Lu from the Haizhou City Criminal Investigation Detachment?"
Li Kai smiled bitterly and nodded: "I was always present when Officer Lu Chuan did the skeleton analysis, and I watched the report come out with my own eyes."
"However, I don't understand how this report came out."
Li Kai can understand every job Lu Chuan does.
Spectral analysis measures bone carbon attenuation, and a bone density detector measures bone density...
It can be said that Li Kai knew everything Lu Chuan did.
But Li Kai couldn't understand the process of combining these things together and going through complex calculations to arrive at this report.
"However, I have seen the skeleton analysis report made by senior Zhang Yuanchao before. Although Lu Chuan's report is inferior in some details, the overall analysis results should be OK."
Although Li Kai cannot make this report, it does not mean that he cannot distinguish whether the report is true or false.
This is like those experts who appraise paintings. If you ask them to draw, they will definitely not be able to draw it.
But if you let him taste the authenticity, there is no problem.
It's like a boy or girl fighting for the first time. They don't need anyone to teach them. They can still figure out where their strengths and weaknesses are.
Wang Chuanmin was amazed, but he couldn't care less.
No matter how he made it, as long as it works!
