I am Detective Wu Nan

He Xubing looked at the stage, and it was really a kid!

A primary school student, right?

He was not stage frightened, and his opening remarks were good and steady. I don't know who taught him! He Xubing had a blank expression on his face. If there was no result today, then the Criminal Investigation Corps really needed to make some adjustments!

The other hundreds of criminal police were also confused!

What was going on?

A primary school student came to teach the criminal police team?

What happened to Captain Zhao? How hard did his brain get kicked by a donkey to do such a thing?

……

Wu Nan looked back at the picture projected on the white screen. He raised his hand and gestured, then said,"Please look, this is the network of contacts of Song Dong, the deceased in the 1213 murder case.……"

"According to the investigation, the victim, Song Dong, was a 51-year-old male and the owner of Xinli Food Factory in Zhabei District. On December 13 last year, he was strangled to death in his office and his body was later found by a security guard.……"

"According to the police's preliminary investigation, dozens of suspects have been ruled out, as well as the possibility of four key suspects... So I re-analyzed Song Dong's connections and family situation.……"

"From the initial information we have, Song Dong's death is nothing more than revenge, love, or because of conflicts of interest or money! The possibility of an acquaintance committing the crime is as high as 90%, but the possibility of hiring a killer cannot be ruled out.……"

Wu Nan said this, picked up the chalk and wrote the word"acquaintance" on the small blackboard beside him!

Turning back, he continued

"Song Dong divorced 13 years ago. Because Song Dong did not have the huge assets before his death, his ex-wife Feng Dongmei only got less than 2 million yuan of assets and took away their two daughters... Song Dong had a very cold relationship with his daughters until Feng Dongmei died of liver cancer four years ago. Song Dong contacted his daughters more and more, and the relationship gradually eased.……"

"I personally think that Song Dong's death was most likely caused by money. In my analysis and reasoning, the primary suspect is Fu Jiaojiao, the financial director of Xinli Food Factory. Fu Jiaojiao was Song Dong's mistress and participated in the battle for inheritance after Song Dong's death... But after my analysis of the archives, I found that the living Song Dong would be more beneficial to Fu Jiaojiao than the dead Song Dong.……"

"So I shifted the focus of my analysis and put it on Song Dong's family. He has two daughters who don't have a good relationship... Look at the picture!" Wu Nan knocked behind him and continued

"The eldest daughter, Song Qian, female, 27 years old, got married four years ago to her husband Gou Anguo. Before Song Dong's death, the two settled in Xihang City and opened a large-scale fast food chain... They currently have a daughter... who is already one year old!"

"The second daughter, Song Yang, female, 26 years old, married her husband Zhang Ke three years ago. Before Song Dong's death, the couple also settled in Xihang City, both worked in foreign companies, and had no children.……"

"I remember a famous saying, which goes,"Make bold assumptions and be careful to verify." This saying is very appropriate when applied to criminal investigation cases, and I regard it as the truth!"

"I suspect that Song Dong’s death is directly related to his two daughters. In fact, I have also suspected several other people, but that is not the point now, so let’s not talk about it for now... Let me tell you why I suspect them!"

"First, their relationship with Song Dong was not very good. Song Dong divorced them because of domestic violence. It can be said that Song Dong was the shadow of their childhood. Before Song Dong's ex-wife died of illness, Song Dong hardly saw his daughter.……"

"Second, Song Dong might remarry! The person he remarries is Fu Jiaojiao!"

"Song Dong was 51 years old and Fu Jiaojiao was 36 years old, a 15-year age difference between them. Fu Jiaojiao was a woman who loved money very much! She dressed very fashionably, but Song Dong was in poor health due to years of hard work, and his temples were already gray before his death. If the two really got married, it could be said that they were an old man and a young wife!"

"Third! According to the police's previous investigation and evidence collection, the police obtained Fu Jiaojiao's mobile phone number and the call records one year before Song Dong's death. From these call records, it can be learned that Fu Jiaojiao and Song Dong's two daughters, Song Qian and Song Yang, had frequent calls three months before Song Dong's death.……"

"According to the transcripts of the employees of the Finance Department of Xinli Food Factory collected by the police, Fu Jiaojiao had had a fierce argument over the phone with Song Dong's two daughters... Song Qian, Song Yang, and their husbands had all come to Xinli Food Factory and had conflicts with Fu Jiaojiao.……"

"Why?" Wu Nan asked, and then said:"Because of money!"

"They were worried that Fu Jiaojiao would cheat Song Dong out of his money. Once they got married, although according to the Marriage Law, the food factory itself belonged to Song Dong's pre-marital property, after marriage, all the profits of the food factory would be the common property of the couple... If Fu Jiaojiao hadn't been there, according to the inheritance law, Song Dong, whose parents had passed away, would have his property inherited by his two daughters in the future.……"

"Fu Jiaojiao once embezzled public funds! She quarreled with Song Dong because of this, but nothing happened in the end"

"Song Dong's two daughters regarded Fu Jiaojiao as a thorn in their eyes, but... Fu Jiaojiao was not killed, but Song Dong was killed.……"

At this point, Wu Nan snapped his fingers and said,"Okay, let's stop here and look at it from another angle.……"

The criminal police officer in charge of the slide show switched the pictures. A new picture was shown on the white screen. The first one was a rough sketch of the Xinli Food Factory, including the location of the surveillance cameras. It was a bird's-eye view!

"Please see, Xinli Food Factory has a total of nine monitoring……"Wu Nan pointed and said,"From this topographic map and the monitoring locations, the entire factory is within the monitoring range. Only some locations such as behind the factory building, behind the office building, and at the corner are not within the monitoring range.……"

"This picture is enough to prove that the person who killed Song Dong was an acquaintance of Song Dong, who was very familiar with the Xinli Food Factory. He knew the location of the surveillance cameras and was able to sneak into the food factory smoothly, and then leave quietly without being caught by the surveillance cameras and avoiding the surveillance cameras.……"

"It's an acquaintance! A very familiar one!" Wu Nan knocked on the blackboard and continued.

"Song Dong died at around 9:10 pm. According to the police's on-site analysis, the murderer climbed into the office through the back window, strangled Song Dong with a rope from behind, and then climbed out the back window to leave... The window was not locked.……"

"Then the question arises, how did the murderer open the window?"

Wu Nan was silent for a moment, glanced at everyone, and then said:"This is very important!"

"It was December, and the temperature in Mohai City was between ten and fifteen degrees. It had already cooled down and was very cold, very cold for people in the south. After Song Dong died, when the police arrived at the scene, they confirmed that the air conditioner was on, which meant that Song Dong could not have opened the window... The window was opened from the inside!"

"But there is surveillance footage that proves that no one entered or left Song Dong's office before and after his death. If there was, climbing through the window is not a crime, and there was no need to climb through the window... If climbing through the window is a crime, it means... the window was unlocked in advance and was just closed, so the owner was stuck and not locked.……"

"So I checked the factory surveillance footage from the seven days before Song Dong's death.……"

Wu Nan snapped his fingers again!

Change the photo!

The photo on the white screen was replaced with a surveillance screenshot, showing someone just about to enter the general manager's office!

"This is a surveillance screenshot taken at 4:37 pm on December 11, two days before the incident. The person in the screenshot entered Song Dong's room... and came out of the room ten minutes later.……"

"According to the surveillance, Song Dong had left the factory at 3 o'clock in the afternoon and had not returned since then.

There was no one else in the office at the moment, so what was this person doing in Song Dong's room? To get information? To sort out files? To tidy up the room? No, no, no...

I have already screened out those people...

This person is not an employee of Xinli Food Factory, but...

Maybe the video is not clear and you can't tell, but after comparing the characteristics, I can tell you……"

"This person is Song Dong's eldest son-in-law, Gou Anguo!"

Wu Nan took out a photo from his file bag and held it up to show it.

A low but noisy discussion sounded in the room, like the buzzing of flies.