"Can't figure out the exact tools of the crime?" Tian Chunda squinted his eyes and asked, "What kind of fatal wound is it?" ”

Su Mei said: "It's a big cavity, a perforated fracture, which should be caused by a blunt blow." ”

Su Mei 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." ”

Criminal Police Hao Dong stared at the photo for a while, frowned and said: "It's a bit like a wound caused by a hammer, but it's different from an ordinary hammer wound. ”

Tian Chunda stared at the photo in Su Mei's mobile phone and observed for a while, as Su Mei depicted, the wound was indeed a big cavity, and the traces on the edge of the wound were equilateral and clear.

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

"Explosion-proof octagonal hammer?"

Hao Dong 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 wound pictures, he looked at Tian Chunda and nodded.

Tian Chunda continued: "This kind of explosion-proof octagonal hammer is different from ordinary 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. And the operation of this explosion-proof octagonal hammer is very labor-intensive, and the murderer can use this octagonal hammer to penetrate the deceased's head, which shows that his arm strength is very amazing. ”

Tian Chunda also said, "Forensic doctor Su said before that the victim was not violated before death, but when I examined the victim's body before, I found that the victim had multiple bruises on his body, which were concentrated on the inner thighs, chest and other parts, which shows that after killing the deceased, the murderer used his hands or other parts to molest the deceased's body." ”

Tian Chunda said: "It can be inferred that the murderer is a man, who may have physical defects and is unable to carry out the corresponding sexual assault, so he can only use other means to molest him. ”

"I'm about to take the body back for further testing to see if there is any DNA from someone else in my mouth." Su Mei said.

According to these analyses, it can be inferred that the murderer is an adult male, with a strong physique, who is currently working in various chemical plants or has worked in various chemical plants. Defective in terms of reasoning and possession of the keys to the deceased's home. Tian Chunda said. In this way, Hong Xia's suspicion is ruled out. ”

Hao Dong said while thinking: "Could it be Hong Xia's husband or other male relatives and friends?" ”

"No, it won't."

Tian Chunda shook his head, thought about it and said, "The murderer is a furniture installer. ”

"Furniture installer? Tian team, how did you come to this conclusion? Hao Dong looked at Tian Chunda in surprise.

"I have checked the deceased's bedroom before, the bedding and mattress are all brand new, there is no skin tissue or hair on the bed, and I can smell formaldehyde when I get closer, which proves that this bed is newly bought by the deceased. Due to the smell, there was a messy blanket on the sofa outside, and the deceased should have slept on the sofa for the past few days. ”

"Buying a new bed?"

Hao Dong frowned slightly, "It's really rare for someone like the deceased to buy a new bed in a rental house. ”

"The deceased Yuan Zi had a generous personality, and the rent was paid for a year, and there were not a few newly purchased furniture in the house."

Su Mei on the side interjected: "Even if the lease is not renewed, these furniture can be sold second-hand or someone to move away, so it is not unusual to buy a new bed." ”

Tian Chunda said: "The point is that the deceased of a bed of this size cannot be carried upstairs and installed by one person, which shows that in the past few days, there must have been furniture installers who have entered the deceased's home!" ”

Hearing this, Hao Dong's eyes lit up on the side, "Reasonable...... If the murderer was a furniture installer, then it would have been very easy for him to get the keys to the deceased's house! ”

Tian Chunda also said: "The deceased was not in a relationship and did not have any friends, so the only one who met all the screening conditions and was able to enter the deceased's home and kill the deceased in recent days was the furniture installer!" ”

One police officer said with some confusion: "But there are hundreds of furniture installers in the city, and the screening scope is probably too large." ”

"I checked the brand of the new bed purchased by the deceased on my mobile phone, and there is no direct store of this brand in our urban area." Tian Chunda said: "This shows that the deceased was purchased online, you can enter the online shopping website to search for this brand, and the furniture purchased in it will be given free door-to-door installation services, and the installer is assigned by their manufacturer by phone." ”

"What do you mean...... As long as you check the online shopping records of the deceased, you can contact the manufacturer to find out the identity of the murderer! ”

An Yi looked at Tian Chunda with some admiration! The Tian team has obtained various effective clues with such high efficiency and given the corresponding reasoning results in a short period of time, which is worthy of being an expert in solving cases!

For the job of a criminal policeman, time is equal to life.

The sooner the killer is caught, the more likely it is to save the life of an innocent victim.

Tian Chunda turned his head and said to the police officer on the side: "Go to the deceased's computer and find out the corresponding records!" ”

"Understood!"

The officer immediately responded.

Twenty minutes later, the officer looked excited. Fen ran out of the bedroom, "Team Yan, find out!" We found the deceased's online shopping records, contacted the manufacturer, and finally found out that the furniture installer's name was Liu Kangjian, who lived in a row of low-rent houses next to the West Bridge in the western suburbs! ”

"Good!"

Tian Chunda did not hesitate, and directly ordered: "Get out of the team and arrest people!" ”

13

West Bridge in the western suburbs.

A low-rise low-rent housing area.

The sun was blazing, and there were no pedestrians to be seen on the road outside the house, and occasionally a few trucks sped by.

There was a sound of cars, and a man on a battery car stopped at the door of a low-rent house.

He was wearing a blue overalls, carrying a bag on his shoulders, his forehead was covered with sweat, and the back of his clothes was also wet, apparently just returning from work.

The man wiped the sweat from his forehead with his elbow, then grabbed the lock on the door and took the key out of his pocket to open the door.

Suddenly, the man seemed to realize something, and his whole face seemed to be a little wrong.

He used to work as a locksmith, and he is extremely sensitive to door locks, and the door lock in front of him has obviously been opened!

The man immediately became vigilant, he gave up unlocking, and turned around and ran directly in the direction of his battery car.

Getting into the car and unlocking it, the man was a little flustered and wanted to get out of here.

A strong arm directly grabbed the handlebar of the battery car.

"In a hurry to leave just after you came back?"

Hao Dong's tall figure appeared in front of the man, he pulled out the man's car key, and then took out his police card, "Hao Dong, the criminal police of the Municipal Criminal Investigation Detachment, let's talk." ”

"What do I have to talk to you police......

Cold sweat broke out on the man's forehead, and he said with a strange expression: "I just remembered that there are still customers whose things have not been installed, and I am in a hurry to go back and pack them, so I can't delay other people's time." ”

"Yo ho, pretty dedicated?"

Hao Dong sneered, "Do you know why I came to you?" ”

"I'm just an ordinary worker, how would I know why you're looking for me!"

The man's face was extremely ugly.

"You're so forgetful, Liu Kangjian."

Tian Chunda looked at the man in front of him and said coldly: "What did you do in Yuan Zi's house, do you still need me to elaborate?" ”

"I'm in a hurry right now, and I don't have time to talk to you about riddles."

Liu Kangjian got off the battery car and looked like he was about to leave.

"Okay, don't pretend, we just found the deceased's mobile phone in the bedside table in your room, and we also found the murder weapon you committed the crime in the house, the octagonal hammer, the blood stains on it, do you think we can't identify it after rinsing it with water?"

Hao Dong sneered, and then took out a pair of shiny handcuffs from his pocket, "You are now arrested on suspicion of murder, come back to the police force with us." ”