Suspect he will solve the case [system]

The properties of this community and the neighbors downstairs are recorded in the police station.

The property owner said: "I don't know what kind of person this owner is. He has never been in arrears with utility bills, but he is often complained by neighbors that he is too noisy. I knocked on the door several times, and every time I told him that he The attitudes are pretty good."

Wen Zheng asked: "Your community allows couriers to enter?"

Property management: "Of course, but the courier and food delivery staff have to register, and each residential unit building has a door lock, which needs to be pressed by the owner to open it."

Wen Zheng looked at him and said, "But today a courier was able to go up to the floor without the owner's consent."

Property: "...Maybe when someone came in, he followed him in directly?"

Wen Zheng didn't say anything more. From this point of view, it is still possible for outsiders to enter the floor.Now the question is, the door of Han Letian's house has an anti-theft lock, how did the murderer get in?

After asking about the property, Han Letian's downstairs neighbor followed.His rhetoric is similar to that of the previous neighbor, that is, Han Letian usually stays at home and makes all kinds of noise, and living downstairs with him is really unbearable.

As for the rest, the neighbor could say nothing more.

After sending them away, Yue Song asked Wen Zheng strangely; "Captain, how do you know that this case is homicide? The conditions for homicide are not sufficient now?"

Wen Zheng said: "Check first, I just have a bad feeling."

It didn't take long for the forensic doctor to issue an appraisal report that the ingredients in the sleeping pills were not enough to cause Han Letian's death. The real cause of his death was suffocation, that is, the plastic bag covering his face.

Yue Song read the death appraisal report three times, and finally said: "This does not mean that it was a homicide."

"Yes, Han Letian himself has suicidal tendencies." Wen Zheng nodded, "What we are doing now is to discover more doubts."

Yue Song: "It says that Han Letian's death was a week ago. I remember that the courier sent him a courier on the same day."

Wen Zheng had expected this to happen a long time ago, so he looked very calm and said, "I brought him here too, he's in the interrogation room, you go with me to ask."

Qiao Xiu didn't want to be a courier in the first place, so he took the opportunity to ask for leave for the boss. The boss asked someone to take over his courier car, and comforted him to cooperate with the investigation.After Qiao Xiu arranged these things, he followed Wen Zheng back to the police station, and was sent directly to the interrogation room.

He got used to it, and when Wen Zheng came in, he said, "I've said what needs to be said."

Wen Zheng said, "Just say it again here."

Qiao Xiu said: "I am in charge of picking up and delivering couriers in their community. I delivered a courier to this house a week ago. At that time, a man opened the door for me. After taking the courier, he closed the door without saying a word. The whole process even There was not even two seconds, and I went downstairs immediately. Another detail at the time was that I heard the music in his home was very loud."

Qiao Xiu couldn't say anything else, and Wen Zheng quickly ended the interrogation.After going out, I immediately went to check the surveillance in the unit building, and confirmed that it took only one minute for Xin Tongguang to go upstairs and wait for the elevator to go downstairs, which temporarily ruled out his suspicion.

But Wen Zheng also found that the surveillance video had a black screen shortly thereafter, and it lasted until the next day, which caused inconvenience for them to investigate the suspect.

Yue Song dug up Han Letian's call records again. In the call on the day of his death a week ago, Xin Tongguang's courier call was the last one connected. It was a meal delivery call before, and he immediately went to the delivery person to find out the situation.

Wen Zheng released Qiao Xiu and made him tea.

Qiao Xiu said with a smile: "The more you get busy, the more you sit in the office and drink tea with peace of mind?"

Wen Zheng: "Here are my strengths." He tapped his head, then pulled the blackboard and began to analyze the case, "Assuming it's a homicide, the murderer must first be able to enter the room."

Qiao Xiu nodded, and said along the way: "But the anti-theft door of Han Letian's house is locked, and you need a key to open it. Who has the key to his house?"

Wen Zheng: "This is the first doubt. When Han Letian died, he took sleeping pills first. After falling asleep, the murderer covered his face with a plastic bag and smothered him to death. Suffocation is very uncomfortable. He was Don't you feel anything?"

Suddenly, Qiao Xiu had a flash of inspiration, and said, "Is it because he wanted to die, so he didn't save himself?"

"It makes sense." Wen Zheng wrote the word self-help and put a cross next to it.

Qiao Xiu imagined Han Letian's situation at that time, and felt very uncomfortable, "Han Letian's parents are abroad, have you notified them of Han Letian's death?"

Wen Zheng said: "I can't get in touch, Han Letian's cousin said he will get in touch again."

Most people in the world love their children, but some people feel that children are a burden.For example, Han Letian's parents and Qiao Xiu's biological mother in this case.Qiao Xiu felt that he was luckier than Han Letian because he still had a responsible father, and his stepmother was also very kind, which made up for his lack of maternal love to a certain extent.He has always been very satisfied, after comparing with Han Letian, he even let go of the loss in his heart.There is nothing wrong with his stepmother loving his younger sister more, and he himself likes Qiao Chu very much.

Qiao Xiu sighed secretly, Wen Zheng immediately held his hand after realizing it, and said, "You're not him, don't think about those useless things."

Qiao Xiu was really thinking that if his father ignored him like his mother did, maybe one day he would be like Han Letian, lying at home coldly and dying for a week without anyone knowing.

As a result, Wen Zheng was like a roundworm in his stomach, interrupting him immediately before he finished thinking.

Qiao Xiu smiled and said, "I was wondering if I should call the lock picker to see if there is anything strange about the lock in Han Letian's house."

Wen Zheng immediately said: "This suggestion is good, I didn't think of it."

As he said that, he went out and asked someone to call the master who opened the lock today, and asked him to come. After re-entering, Wen Zheng praised Qiao Xiu and said, "Why are you so smart?"

Qiao Xiu: "..." Why did he think that Wen Zheng was flattering him because he was afraid that he would think too much?

It happened that Bai Jianbai came to knock on the door and said that Han Letian has a game team in the local area, and sometimes everyone will meet Ji.

Wen Zheng asked, "Can I contact them?"

Bai Jianbai said: "I have already notified that a few people will be able to come this afternoon."

Wen Zheng: "Where are Han Letian's other real friends?"

Bai Jianbai said: "The closest person has not been in touch for nearly a year, and his life focuses on the Internet."

Wen Zheng said: "Then pay attention to see if Han Letian has made any enemies on the Internet."

Bai Jianbai agreed and left again.

Qiao Xiu's hungry stomach was screaming. The original owner was in a hurry to deliver the courier at noon and had no time for lunch. After Qiao Xiu came, he had been busy with Wen Zheng's case until the feeling of hunger spread to his brain, and he realized that the original owner hadn't eaten lunch.

Wen Zheng glanced at him and said, "Can I order you a takeaway?"

Qiao Xiu asked, "Is there any instant noodles?"

Not long after Qiao Xiu finished eating the instant noodles, the lock picker came.Hearing Zheng asked about the door lock of Han Letian’s house, the master said: “The lock in their house is smart and can be automatically locked. However, there is a gap of about two seconds between closing the door and automatically locking it. This is convenient for people. Just after closing the door outside, I suddenly remembered that I forgot to bring something, at this time, I can quickly open the door without taking out the key to open the door.”

What kind of retarded design is this?Qiao Xiu and Wen Zheng glanced at each other. This design is obviously not safe enough. People inside just closed the door. If someone suddenly came out, wouldn't they be able to open the door and rush in?

The lockpicker understood what the two of them meant, and said, "This kind of lock is really not in line with usage habits. Many people have changed the lock. I didn't expect this family to still use it today."

Wen Zheng keenly grasped the meaning of his words, and asked: "Many people have changed it? This kind of lock was used in their community from the beginning?"

The lock picker nodded and said: "Yes, the anti-theft doors were all installed when the house was handed over, and the locks on the doors were uniform, and the people who moved in had changed the locks one after another. I often came here to help others. Change the lock, so remember clearly."

That is to say, people in the community probably know that Han Letian's home is this kind of smart lock.

Wen Zheng asked the lockpicker in detail a few years ago, and combined with the time when Han Letian moved in, he may not even know that his door lock has this function.After sending away the lock picker, he added a smart lock to the blackboard.

From this point, they knew that Han Letian's house could be entered even without a key.The possibility of Han Letian committing suicide increased by one point.

Now the focus is to check Han Letian's social network.

Before Qiao Xiu had a rest, his colleague courier who delivered the goods for him called and asked him where to put the courier car.

Qiao Xiu was confused and said, "Leave the company alone."

The colleague said: "There is no room in the company, it is not safe to put it outside, or I will send it to the police station for you, and you will drive back after finishing your work."

"Okay, sorry to trouble you." Joshua agreed to his arrangement.When I get away from this suspect, he will continue to deliver the courier. It will be bad if he loses his car.

The colleague hung up the phone and arrived at the police station not long after, and Qiao Xiu went out to pick up the car.But the courier boy asked him mysteriously: "You really didn't kill the man?"

Qiao Xiu froze for a moment, then asked, "What do you mean?"

The courier boy waved his hand and said, "It's nothing, I'll just ask, if you don't want to say it, forget it."

Qiao Xiu was even more confused. Now Han Letian didn't know whether he committed suicide or homicide. When he called the boss, he just said that he ran into a courier delivery, so he had to cooperate with the investigation.This colleague actually asked the other person directly if he killed him!

'System, is there anything else I don't know about it?What kind of grievances do Xin Tongguang and Han Letian still have? ' Qiao Xiu frowned and asked.

The system was slow for two seconds before saying: "There was a quarrel, I'm sorry the host, I was negligent."When Xin Tongguang used to deliver the courier, Han Letian refused to open the door of his unit, and Xin Tongguang refused to go in, saying that Han Letian refused to accept it, and Han Letian complained to him.This happened half a year ago! '

Qiao Xiu felt dizzy, "This matter is so important that you can ignore it."The courier brother came up and asked if I killed the person, which shows that Xin Tongguang has a lot of resentment towards Han Letian.When the police discovered this, I deliberately concealed it, and the suspicion on me increased countless times. '

'Sorry host. 'The system apologized again.

Qiao Xiu sighed: "Forget it, now that I know, I'd better confess to Wen Zheng first, lest someone take the initiative to find me later." '

He hastily bid farewell to this colleague, parked the courier vehicle in the courtyard of the police station, and was about to go up to find Wen Zheng.

Yue Song stopped him halfway, "Xin Tongguang, come to the interrogation room again."

The author has something to say: the third shift starts to code, it is still around eleven o'clock, and it will be posted after writing.