Upon returning to the team, colleagues from the Forensic Medicine Division began to perform autopsies on the corpses, and colleagues from the technical team analysed the items found at the scene.

Xiao Ran first reported to the team leader, and then began to inquire and collect information on missing persons around various jurisdictions in the past half a month. To find out the truth about death, it is first necessary to determine the identity of the deceased.

However, this work will not be easy to carry out for a while, and now in the middle of the night, there is no condition to go out to visit and investigate.

In the small conference room, Xiao Ran recalled the off-road costumes carried by the deceased, and suddenly asked, "Recently, have there been any hiking activities or competitions around our city?"

"This ...... I haven't paid attention to it, but I'm checking on the Internet, if there is an event or something, there should be a report, right?"

"If you can't find it, when it's dawn, let's go find people who are more famous in the off-road, and those who play off-road must have circles, and it may be relatively easy to find them in the circle. Xiao Ran looked at the black night sky outside the window, as if talking to himself.

Liu Qing nodded, his eyes were firmly fixed on the mobile phone screen, and suddenly he slapped the table, "Hey, there is one! Ten days ago, that is, on May 12th, a district of our city held a cross-country hiking competition, with more than 300 participants, and the race was 80 kilometers, and the end point was in a county in the west of the city, and Wanggong Mountain was just near the cross-country route!"

"I'll take a look!" Xiao Ran took his phone and carefully read the news that few people had read.

Now, ten days, is enough time for the corpse to decompose to the point where it is now.

"The deceased is likely to be a participant. Contact the organizers of the event and ask for the registration information of all the contestants at that time. ”

Xiao Ran returned the phone to Liu Qing, but looked at the current time again, and said helplessly, "...... Try to get in touch, and if you can't get in touch, wait until tomorrow. ”

In the dead of night, the office building is silent.

Time passed little by little, and before I knew it, it was the second half of the night.

During this period, although there were sporadic pieces of information coming in, they were of little value, and the phone number of the event organizer that was found was also turned off all the time.

Fortunately, there was new progress on Yu Yu's side, the autopsy had been completed, and Xiao Ran took Liu Qing and others to the forensic office area to learn more about the autopsy.

Yu Yu, who came out of the change of clothes, threw the notebook in his hand on the table, pulled a chair and sat down straight, and the first sentence raised everyone's hearts: "There is indeed a possibility that he will kill!"

The office area was quiet for a few seconds, and the silent atmosphere was a little weird, Xiao Ran knocked on the table, looked at Yu Yu and said, "You go on, stop and do something." ”

"Spice things up. ”

Yu Yu spread his hands, opened the notebook, looked at the messy records on it, and organized the language, "Through the anthropological examination, the deceased is a male, about fifty years old, 180 cm tall, and the body is difficult to estimate due to the high degree of decay of the corpse, but according to the number of the deceased's clothes, it can be inferred that this person's figure is quite standard, not fat or thin." ”

"I would like to add here that the deceased was financially well-off and was a fairly professional off-road player, and it is likely that he participated in an off-road race held in a district of our city ten days ago. Xiao Ran told everyone about the equipment on the deceased's body, and everyone who listened was stunned.

Zhang Lei exclaimed in surprise: "I'll go, Xiao Ran, when did you become so familiar with the off-road set?—— I didn't expect that there were so many doorways in this person's things!"

"What did you just say, ten days ago?" Yu Yu asked with a slight frown.

Xiao Ran nodded, "On May 12th, a cross-country competition was held in a district of our city. Does it correspond to the time of the deceased's death?"

"It's not certain yet. After all, the body of the deceased is already highly decomposed, and there is no change in the corpse that can be inferred from time, so I plan to cultivate fly larvae and use forensic entomology to calculate the time of death of the deceased. ”

Yu Yu shook his head and said, "By the way, the DNA of the deceased is already being done, and it may take some time to compare it in the future, so you guys are ready." ”

After listening to Yu Yu's speech, Zhang Lei also spoke: "I also want to add here that fingerprints were extracted from the deceased's cane, but no DNA was extracted, as for whether the fingerprints were the deceased, it is difficult to say now."

In addition, the deceased's headlamp has sufficient power, and it seems that it has not been used after it is fully charged.

The nail pierced by the deceased's shoe was an ordinary iron nail, and after analysis, we judged that this nail should have been stepped on by the deceased unintentionally, but it is impossible to judge whether there is a human reason in it for the time being. ”

Xiao Ran listened carefully, "Let's continue to talk about the results of the autopsy." ”

Yu Yu nodded, and his face became unconsciously serious: "After the autopsy, we found that there were five obvious injuries on the deceased's body: one is a comminuted fracture of the skull, the second is a special state of skull fracture, the third is a linear fracture of the phalanges, the fourth is a skin contusion on the lower back, and the fifth is a trauma to the sole of the right foot. ”

"The injury on the sole of his right foot should have been pierced by an iron nail on the sole of his shoe, which everyone knows. ”

Xiao Ran furrowed his brows and said, "But you said that the deceased had two forms of skull fractures, and his phalanges were also fractured, so let's talk about these two points in detail." ”

"Okay. ”

Yu Yu thought for a moment and said, "After the autopsy and craniotomy, we determined that the deceased's skull was fractured, and it was a comminuted fracture. So we tried to recover the fragments of the deceased's skull, and found that the deceased's skull had three injuries. ”

"Two of the skull fractures were very irregular in morphology, and the analysis was that the skull came into contact with a blunt object, or that they were formed after a fall. ”

Yu Yu casually flipped to the blank page of the notebook, took a pencil and carefully described the shape of the deceased's skull fracture, and then said: "The other shape is such a narrow fracture, the edge is relatively neat, the length is about 3 centimeters, and there is a certain width, I feel ...... It felt like a dagger was stabbed in.

As for linear fractures of the phalanges, as long as the forearm and metacarpal bones can remain intact, phalanges fractures are rare. And we are sure that the injury to the phalanx was formed by the blow, but the tool that caused the injury is difficult to judge. ”

"It's okay to say that the wound on your hand is okay, but if you take a dagger and pierce it into the skull, with the hardness of the human skull, I'm afraid you have to be a martial arts master to pierce it!" Zhang Lei said puzzled.

"That's how I describe it, and I don't say it's a dagger for sure. ”

Yu Yu glared at Zhang Lei: "Although I don't know what kind of murder weapon caused this special state of skull fracture, I can be sure that in order to form such a fracture, four conditions must be met."

First, the tool should be hard and weighty, secondly, it should have a flat and narrow contact surface, and finally, it should be easy to wield, and secondly, the suspect should be strong enough. ”

"Then what do you say this is? It has a long enough handle, and a dagger is fixed vertically on the handle......" Zhang Lei gestured with his hands in the air, and suddenly his eyes lit up, "Hey, is it a sickle?

"Not really!"

Yu Yu firmly rejected Zhang Lei's speculation, "The quality of agricultural sickles is not enough in the first place, unless it is a special iron-handled sickle, and the blade has been specially treated." ”

There was a lot of talk in the office area, and everyone was discussing this special crime tool, but there was no result.

Bang bang bang!

Xiao Ran, who had been pondering, suddenly knocked on the table, he slowly raised his head and said, "I know what this is!"