Solve the case and become stronger

At the same time, officers from other investigation teams have also completed the preliminary trace examination work temporarily.

"Team Yan, no complete fingerprints or footprints have been extracted from the bathroom where the crime occurred or the suite where the crime occurred, there is no trace of the door lock in the suite being picked, and all the windows are equipped with anti-theft nets, and it is impossible for the suspect to enter through the window. "

Jiang Yi had already mentioned these before, so Yan Jun simply nodded and asked, "Is there any loss of belongings in the house?"

"Nope. "

The police officer of the investigation team shook his head and said: "There are no traces of being turned over at the scene, and no property has been found. "

Yan Jun thought for a moment, and then said to the police officer in front of him, "Did you find the deceased's mobile phone in the suite?"

"No, there isn't. "

The police officer also shook his head and said: "We have checked every corner of the deceased's suite and have not found any valuable clues such as mobile phones, but there is a computer in the deceased's bedroom, and the comrades of our technical team are checking the contents of the computer." "

"After the murderer killed someone, he didn't forget to take the deceased's mobile phone away. "

Yan Jun squinted his eyes and said: "This murderer is quite thoughtful, and his psychological quality is very strong, and he did not leave any mistakes at the scene. "

"That's right, this murderer has a certain amount of anti-reconnaissance ability, and it is very likely that he is a repeat offender. "

Jiang Yi nodded.

On the other side, Su Yan completed the preliminary autopsy, she got up and left the bathroom while taking off her mask and gloves, and saw Yan Jun talking to Jiang Yi, her face also looked a little surprised.

She has been serving in the Xicheng Branch for so long, and it is the first time she has seen Yan Jun talk to a trainee police officer so seriously.

"What were the results of the autopsy?".

Yan Jun asked towards Su Yan.

"Based on the rigidity of the body, it can be determined that the time of death of the deceased was twelve hours ago, that is, at about half past nine last night. "

Su Yan said: "Judging from the degree of blood splashing on the wall of the bathroom where the crime occurred, the bathroom is the first scene of the crime

."

The deceased's hymen was torn old, and he was not guilty of Qin before his death, but there were multiple cuts on his body, and from the perspective of the wound face, most of them were knife and axe cuts, and the fatal wound was on the head, but the shape of the wound was very unique, and it was temporarily impossible to judge the accurate tool of the crime. "

"Can't judge the exact means of committing the crime?".

Jiang Yi squinted his eyes and asked, "What kind of fatal wound is it?"

Although Jiang Yi had also briefly observed the condition of the corpse's wounds before, the specific situation still needed to be described by Su Yan.

Su Yan glanced at Jiang Yi, hesitated for a moment and said, "It's a huge cavity, a perforated fracture, which should be caused by a blunt blow." "

Although he only responded simply, the police officers who were surveying on the side all glanced at Jiang Yi with some surprise.

"See, forensic doctor Su Yan actually answered the words of the trainee police officer, it's really rare......

."

"Forensic Doctor Su Yan is so cold on weekdays, except for the words of the strict team and the leader, she will respond a few words, this is the first time I have seen her respond to the words of the trainee police officer. "

"Yes, on weekdays, we ask Forensic Doctor Su what she usually ignores, what is the situation today?".

......

Su Yan took out her mobile phone from her pocket and flipped out the photos of the corpse wounds she had taken before, "This is a photo of the wound, what is the specific murder weapon, you can analyze this yourself, I am only responsible for the autopsy." "

Yan Jun on the side stared at the photo for a long time, he frowned and said: "It's a bit like a wound caused by a hammer, but it's different from an ordinary hammer wound. "

Jiang Yi stared at the photo in Su Yan's phone for a long time, and as Su Yan described, the wound was indeed a huge cavity, and the marks on the edge of the wound were regular and clear.

This kind of wound is not common, but Jiang Yi has very rich experience in solving cases in his previous life, and he has been exposed to all kinds of strange wounds, so he also quickly came to a conclusion.

"If I'm not mistaken, the murder weapon should be a special explosion-proof octagonal hammer. "

Jiang Yi said.

"Explosion-proof octagonal hammer?".

Yan Jun immediately took out his mobile phone, opened the search engine and began to search for the corresponding pictures of the explosion-proof octagonal hammer, and after careful comparison with the pictures of the wound, his eyes looked at Jiang Yi more and more shocked.

Although he had already seen that this young man was extraordinary, Jiang Yi's successive performances had far exceeded his expectations.

"This kind of explosion-proof octagonal hammer is different from ordinary iron hammers, it is usually used in explosion-proof places, and can only be used in chemical factories such as oil, gas, paint industry, fertilizer industry, etc., which means that the murderer is likely to be a factory worker, or has worked in these factories. "

Jiang Yi analyzed: "And the operation of this explosion-proof octagonal hammer is very labor-intensive, and the murderer was able to use this octagonal hammer to penetrate the deceased's head, which shows that his arm strength is very amazing." "

"Well said, continue your analysis. "

Yan Jun's expression was a little excited.

"Forensic doctor Su said before that the victim was not convicted by Qin before his death, but when I examined the victim's body before, I found that there were multiple bruises on the victim's body, and they were concentrated on the inner thighs, Hun and other parts, which shows that the murderer used his hands or other parts to deface the deceased's body after killing the deceased. "

Jiang Yi said: "It can be inferred from this that the murderer is a man, who may have some biological defects and is unable to commit the corresponding sexual crime, and can only use other means to commit sexual indecency. "

"I was about to bring the body back for further testing to see if there was anyone else's DNA in my mouth. "

Su Yan said.

"There were no fingerprints or footprints left at the scene of the crime, indicating that the murderer had a certain degree of anti-reconnaissance ability and may have had a criminal record, and based on these analyses, it can be inferred that the murderer was an adult male, physically able, currently working in various chemical factories or having worked in various chemical plants, with biological defects, and possessing the keys to the deceased's home. "

Jiang Yi said.

In this way, Hong Qiuxia's suspicion is ruled out. "

Yan Jun said while thinking, "Could it be Hong Qiuxia's husband or other male relatives and friends?"

"No, it won't. "

Jiang Yi shook his head and said, "The murderer is a furniture installer. "

。