Misty Forest [Criminal Investigation]

The deceased Lin Fei bought items at the supermarket around 16 pm on Sunday, 4th, checked out at 4:43 and left at 5:8, went to the deli to buy cooked food, and walked about [-] minutes from the deli to his residence.After returning home, he took a shower and changed clothes, waiting for his friend to come to the door, and then he was killed.The neighbors around were not familiar with Lin Fei, so they didn't hear any unusual sounds that night.

At the scene of the crime, Nian Feng preliminarily deduced that the time of death was more than 24 hours but less than 36 hours. Qi Yu calculated Lin Fei based on the path of Lin Fei's activities before his death and the remaining amount of the 4 empty wine bottles on the table and the leftover cold dishes. The time of death was about 35 hours before the body was found.

"I speculate that the murderer entered the deceased's house at six or seven in the evening and left after ten in the evening. He came at a time when there were many people outside and would not arouse suspicion. When he left, most of the shops were closed and no one noticed him." After praying for rain, let everyone add their own ideas.

"Using fake names, so many mobile phones in the house can't be stolen?"

"Using a fake name is definitely an illegal act, but it should not be reselling stolen goods. Those mobile phones are not in good condition, and they look like second-hand goods bought on purpose."

"Xiaobao, you go into the system to check whether the fugitives meet Lin Fei's situation, and check the ID cards and bank cards. Let's go to the surrounding shops over there to ask about the situation. Then contact the technical staff of the provincial department to see Let’s see how to crack the contents of those mobile phones as soon as possible.” Qi Yu’s arrangement of work has brought up new difficulties, as they don’t have a dedicated information technology group.

"Well, I can try..." Bao Siqi raised his right hand.

After Chen Qiaosheng settled on Bao Siqi, he didn't tell Qi Yuduo any information, but only said that this kid has a lot of potential for him to tap slowly.Arranging for Qu Ruichuan to come over, Qi Yu understands that Xiaoqu has sufficient experience in localization work, and has indeed helped him a lot in many places since he came.However, he has never discovered Bao Siqi's strengths. During the time he came here, he found that Bao Siqi had no experience in criminal investigation work. He could think that he was from the province. Just give it a chance.So it seems that Bao Siqi's strength lies in technical cracking and data mining?

"Okay, try it. The Appraisal Department will notify you to get it when it's ready, so take your time."

Returning to the scene of the crime, the news of the dead people here has already spread like wildfire. There will be a shop on the side of the road, and the gazes of the downstairs sitting around talking about gossip turn to the third floor to point and point from time to time. Through their few words, Qi Yu learned that they didn't know the residents in this house, even men, women and children, and even heard that the person who died was a woman.This is consistent with the information that Qu Ruichuan got during his visit in the morning. Lin Fei deliberately kept a distance from the surrounding people to prevent others from gaining insight into his life.

Qi Yu asked a few excited people who were talking about it, but the other party panicked when they heard that Qi Yu was a policeman, and either said they didn't know or they had heard about it.Several people were about to return without success. Unexpectedly, when they walked out of a street, they were stopped by a young man running hurriedly behind them.

"I just heard that you are the police, right? Are you asking about the night before yesterday? Can I see your documents?" The other party was not in a hurry to provide information to Qi Yu but wanted to check the documents.

The young man looked at the documents of the three people one by one, which provided a clue.

He is from Lumna but works in Yunzi Muhua. On the evening of the 16th, he received a call saying something urgent happened at home, so he drove back from Yunzi Muhua.It was past eleven o'clock in the evening when we entered the town. Only the main road in Lumna was illuminated, and the lighting was not good, so he turned on the light and drove slowly. He almost ran into a man at the intersection when he was about to get home. Fortunately, he drove slowly. The man hurried out from the side and he stepped on the brake.

The man bent his elbows and covered his face with his hands, and hurried away without stopping or scolding him.He felt strange in his heart, usually this kind of situation would involve a few words of dispute, and the other party left without saying a word. What was even more strange was that under the light of the car lights, he saw that the transparent plastic bag carried by the other party's right hand was full of rubbish, and the man ran away just now. There are trash cans on the side of the road.

"This person is quite strange. Of course, it cannot be ruled out that he has a brain problem to pick up garbage. Just now you asked me to think about it, so it's better to tell you."

"What's the trash in his hand?"

"I don't know if there is any alcohol in an opened beer bottle, and there is also a plastic lunch box, and there are red and red leftovers in the bag that I can't see clearly." It may be that what the other party mentioned at night was too weird, so the young man remembered profound.

"How tall is it? Fat or thin?"

"He's not too tall, looks like he's just over 1 meters tall, with a medium build and wearing dark clothes."

Qi Yu asked the man to take them to the intersection where they almost hit someone that night. It is a 10-minute walk from the crime scene to a small road on the edge of the town. Except for the intersection, the road in front can be completely hidden behind the street to reduce the chance of bumping into passers-by. , while walking across the intersection across the road, there are two roads, one up and one down, and one turn.Although no more valuable information was found, the escape route chosen by the murderer fully demonstrated his familiarity with the terrain.

In the office, Bao Siqi laid out Nianfeng's inspected mobile phones neatly in front of him, each of which was plugged with a data cable. These data cables were sent to two concentrators, which were respectively plugged into the two USB ports of the computer.

Qi Yu walked to the desk and saw a data cable like a spider web, and asked Bao Siqi what it was.

"This is a data cable I modified myself. It can process information from multiple mobile phones at the same time. There is no one in the fugitive list that matches Lin Fei's situation."

"The information you dug up is categorized and handed over to everyone to check it together. It's so fast, don't finish it yourself."

Qi Yu opened the scene picture sent by Nian Feng, and there were four empty wine bottles standing still on it, "Drunk with four bottles of beer? Impossible..."

"The murderer has a certain anti-reconnaissance awareness." Qu Ruichuan pointed to the empty trash can.

"Ah? What did the murderer do?" Bao Siqi stuck out his head. At the scene, he followed two people to check and pack things. He didn't go out to visit just now. He felt like he missed a lot.

Wen Bin turned Qi Yu's notebook so that he could see the photos, and told him word by word what the murderer might have done after the murder.

The deceased bought a total of five bottles of beer and two glasses, but only one glass and four beer bottles remained at the scene.The murderer took away his used wine glasses and wine bottles, worried that the fingerprints on them would be found if they were not wiped clean.He took away the garbage, because according to the food purchased by the deceased that day, there were a lot of bone-like food in it, and his saliva would remain after eating the bones, so he took the residue away with him.After a forensic on-site investigation, only the living room left his footprints. The premise was that he didn’t know that footprints would be left on the cement floor, so he might still deal with the ground, so it also proved that he had not entered the bedroom, and the bedroom had no traces of being turned over. It's not that he tidied it up after turning it over, but that he really didn't go in at all.

"Then he should be premeditated murderer, and he has planned his way out since he entered the house. He must not have been too drunk to kill impulsively. Otherwise, he only drinks one bottle of so many good wine and food? It's unreasonable. It doesn't seem to be my taste, I said. Why have a lot of these mobile phone data been cleaned up?" Bao Siqi muttered after listening to the analysis.

Qi Yu was amused: "What does the murderer's anti-reconnaissance ability have to do with the fact that you can't find information on the mobile phone at the deceased's home?"

"Oh~ It doesn't necessarily matter. The murderer was aiming to kill people that day. He didn't take away the deceased's mobile phone, which means that he knew that there was no information about him in the deceased's mobile phone. Did you check the registered name of his mobile phone, little bun? And those ID cards, bank cards."

"I've checked. The two ID cards really have nothing to do with him. I checked that the original owner lost his ID card and reissued it. It doesn't matter if the bank card account name is another name. The balances in it are more than 9. More than 11. I have recently operated an ATM. I have sent a letter to the bank to ask them to provide surveillance cameras corresponding to the time. The contact number and identity information he left for the landlord is an 85-year-old old lady who has passed away. Yes. The information numbers on his mobile phone are weird, I can't understand them."

Qu Ruichuan leaned close to Bao Siqi's computer and looked at the seemingly disorganized numbers: "The space card of country K is in trouble."

"Space card?" The other three asked together.

Country K's communication infrastructure was built with the help of our country. The advantage is that the signal is very good.However, country K does not have strict communication management, it is very easy to open an account, and stored-value number cards can be bought and sold at will.Some number cards do not require any information and can be bought in many places. The price is relatively expensive, but there is no problem in using them in the Lumna area. Therefore, many people from K country who cross the border and come to Lumna for a short-term stay will use this card. If you use up the stored value inside, throw it away. Generally, you will not choose to recharge, because there is a discount for buying a new card, but there is no discount for recharging.

"Then there must be someone on this side of the card?" Qi Yu asked Qu Ruichuan.

Qu Ruichuan smiled and said two words, Qi Yu nodded and asked everyone to cooperate with Bao Siqi to dig deeper, and he went out for a visit.Qi Yu went out and walked into the police station without turning a corner, and pushed open the wooden door with the sign of the director's office.

In the middle of the small office, there is a simple wooden desk with mottled paint. The computer monitor on it is like a big butt. Ke Xiawo is inside the small desk, beckoning to pray for rain and sit down quickly.

Qi Yu walked into the office and closed the door. He pulled the chair almost against the door before he sat down smoothly, with his legs close together at ninety degrees.

"Ke Suo asked something, is there anyone here who sells space cards?"

Ke Xia looked hesitant and did not immediately answer Qi Yu's question. Qi Yu immediately stated the facts of today's case. The identity of the deceased has yet to be verified. He has a large number of mobile phones that use space cards, so he wants to start with the trafficker.

Ke Xia took out a pen and drew a simple map on the sticky note, wrote the house number and handed it to Qi Yu.

"Wang Chuan is 22 years old, about 1 meters tall, with a black skin and mixed race. He is easy to recognize. His clothes are all fancy and long enough to cover his buttocks. If he is here every morning at around 8:9, he will If you eat breakfast in this store, if you don’t take it to another place for a few years, you just have to squat him and go here, he is more cooperative with the police.”