After the autopsy work of the forensic department, the cause of death of Yu Zhehao and Jiang Zishan was hanging, and both were homicides.

The reason why the two deceased did not resist when they were killed was because Yu Zhehao was taking sleeping pills at that time, and Jiang Zishan was in a drunken state.

After the murderer killed, the two deceased were stuffed with mutilated photographic fragments in their mouths, and the two fragments were stitched together to form a complete photograph.

In the photo, Yu Zhehao and Jiang Zishan are illegally violently assaulting a man, but the man who was violently beaten has only one back.

"This beaten man is suspected of committing a major crime, but why did he choose to hang himself when he killed someone?" I spoke slowly, in a deep voice.

"Not only that, let's not ignore the person who took the photo. If the person who took the photo is in the same group as Yu Zhehao and Jiang Zishan, then he is likely to be the murderer's next target. Lin Zifan continued.

Now, there are many direct clues in front of us, but none of them seem to be able to continue the investigation.

The man who was beaten, and the person who shot the video, we don't have any way to get their identity.

Now, all we can do is investigate the two deceased.

In this situation of no clues, we urgently need Li Meng's criminal profile, but the current case is not clear, and Li Meng has no way to help us.

The traditional criminal investigation method of serial homicide cases is to find the common ground between the two cases, I asked Lin Zifan and Xue Hang to investigate the social relationship of the two deceased separately, and I decided to take Li Meng to Yu Zhehan again to ask about the situation.

When Yu Zhehan made a record after the incident, he left his detailed identity information, and we easily found Yu Zhehan's address.

After knocking on the door, we saw Yu Zhehan with red eyes.

The death of his own brother brought him a lot of blows, and it can be seen from his somewhat haggard appearance that he must have cried for a long time.

The man had tears and did not flick, and when he saw us, he took a deep breath and said in a somewhat hoarse voice, "Two police officers, please come in." ”

"Mr. Yu, please mourn, we are here this time, and there are still some questions that need to be investigated from you." I settled down and walked into the house with Li Meng.

I don't know if it's a psychological effect, Yu Zhehan is very calm in his room, not a little angry, maybe it's the change in mood that changes people's thinking.

"Officer Qin, when will my brother's body be retrieved...... I want him to be buried in peace......" Yu Zhehan looked at me in a daze and said slowly.

"Now the case has not been solved, and the body is temporarily stored in the forensic department of our Municipal Public Security Bureau." I said in a deep voice.

Yu Zhehan sighed helplessly and nodded in understanding.

"Did you tell your father the news of Yu Zhehao's death?" I looked at him and asked seriously.

Yu Zhehan shook his head slowly, his face was full of confusion, and right now, he felt a little at a loss.

"No, my father is still abroad, and he went to an international jewelry conference. I didn't know how to tell him the news, and I hadn't figured out what to say yet...... I ......" Yu Zhehan said, a little emotional, hiding his face and crying.

"Mr. Yu, please mourn, we know your feelings very well. So we are here this time to continue to learn some clues from you, to help our police solve the case as soon as possible, and arrest the murderer as soon as possible. Li Meng looked at him and said in a deep voice.

Yu Zhehan nodded while crying, trying to calm his emotions, he sniffed hard, and asked in a crying voice: "What do you want to ask, ask." ”

"Have you seen this picture?" Li Meng calmed down, took out a evidence bag from his pocket, and put it on the coffee table in front of him, with a spliced photo inside.

Yu Zhehan wiped the tears from his eyes, picked up the evidence bag and examined it carefully.

He looked at it for a while, and his face suddenly changed.

"I've never seen this picture before...... My brother and Oe ...... This is ......" Yu Zhehan looked at us with some shock in his eyes.

"I believe that we don't need to say it, you can also see that the situation in the photo is that your brother Yu Zhehao and his friend Jiang Zishan are violently violating a man." I took over and spoke earnestly.

Yu Zhehan looked at us, then at the photo, and said in disbelief: "How can this be? How could my brother be like this?! ”

"This photo was found at the scene of the crime, so this photo is closely related to the case of your brother's murder." Li Meng looked at Yu Zhehan's gaze and said seriously.

"Huh?! My brother was killed, and it had something to do with this photo?! Yu Zhehan was shocked when he heard Li Meng's words, and repeated her words.

Li Meng nodded seriously and said lightly: "So you need to provide us with some clues, did your brother mention this matter to you in the photo?" ”

Yu Zhehan looked at the photo, he could see it, he pondered for a long time, and slowly said: "My brother and I grew up together, and I know him very well, but I never thought that he would become what he is now.

We are a single parent family, and my dad has always taken care of us, and although he is very busy, he lacks love for us.

Because we are a single parent, our personalities are very different, but now they are different.

My brother has a very impatient personality, and after graduating from college, my father gave me and my brother a sum of money each, so that we could buy a house, live on our own, or invest in it.

Since I got that money, my brother has been like a different person, he is like going in and out of bars, splurging on it. It is precisely because of his status as a rich second generation that he has made a group of fox friends and dog friends, who often go out to drink together and often cause trouble.

It was a good time that they got drunk and got into a fight, and that night I got a call from the police, and I freaked me out, and then I paid him a fine and took him home.

I was three years younger than my brother, so I was very young when my mother died. The death of my mother made me insecure since I was a child, so I developed a particularly timid character, I was very cautious and cautious, and tried not to make mistakes, so I had low self-esteem.

I am often bullied, and my brother leads a group of 'brothers' to support me, and among these brothers, there is this person named Jiang Zishan, who is older than my brother, so my brother calls him 'Da Jiang', and I have seen him. ”