Sunday morning

"Uncle Yu, let's do it today?" Bai Tianqing held a notebook printed with bells and whistles anime characters, a new set of white Nike sportswear, and a pair of basketball shoes, and asked seriously

"Didn't I tell you to wear civilian clothes? You're going to dress me like this? Yu Qian's temples were beating one by one, and he wanted to press Bai Tianqing to the ground and beat him, "I'll take you to investigate the case today, not to walk the street!" ”

"Huh? Isn't this just casual wear? What kind of casual wear do you need? Bai Tianqing felt inexplicable

"Keep a low profile! Low-key understand? And what's the situation with your notebook? ”

"Ah, this, this is my favorite anime character, called..."Bai Tianqing happily introduced.

"Shut up! I don't want to hear it! Go and change it for me, and replace it with a small notebook that you can carry in your pocket! Just go! Changed my clothes too! I'll give you two hours! Yu Qian pointed to a police officer who was about to go out, "Did you see it like him?" If you wear sportswear, you can also choose a gray set for me, my little master, and your shoes, even if you wear a pair of running shoes? ”

"Oh... I'm going to change it now..."Bai Tianqing hung his head and went out of the door.

Yu Qian pressed his forehead, feeling tired in his heart, thinking that with Bai Tianqing's words, some situations that require procedures can save some effort, who knows that this guy's brain circuit is not a normal person at all, and yesterday he also told Liu Zhengming that it was Qu Cai to put a famous university graduate into the criminal police team, and now he only hopes that Bai Tianqing is a person who came out of the specialized police academy, and he at least does not have to start from dressing...

Yu Qian stabilized his mentality, and pulled out the materials of Ma Wen's case and looked at it carefully, the closure of the case is already a sure thing, even if Yu Qian delays, it won't last long, the day after tomorrow Ma Wen's mother will come to S City to deal with the aftermath, Yu Qian wants to seize the time to dig out more suspicious points, otherwise when the deceased's family arrives, the relics will be transferred to Ma Wen's mother.

"Uncle Yu, is this time okay?" After an hour of hard work, Bai Tianqing ran into the office of the criminal police team out of breath, Yu Qian looked up, Bai Tianqing changed into a pair of gray woolen pants and a black coat this time, with an off-white woolen sweater and a pair of running shoes. Yu Qian frowned, swallowed the sentence "It looks too new", thinking that it would be okay first.

"Come with me." Yu Qian closed the folder, put it in a leather briefcase, and beckoned Bai Tianqing to go out with him.

"Uncle Yu, where are we going today?" Bai Tianqing tried his best to keep up with Yu Qian's pace.

"Go investigate Ma Wen's case" Yu Qian strode forward, thinking about things as he walked.

"Isn't that case about to be closed......" Bai Tianqing remembered the meeting yesterday afternoon, and asked cautiously, "Uncle Yu, what did you and Bureau Liu talk about after the meeting?" Bai Tianqing was afraid that Yu Qian would say that the case was okay at the meeting yesterday afternoon, and changed his usual affectionate name for Liu Zhengming.

"It's still a little suspicious, I need to figure it out." Yu Qian glanced back at Bai Tianqing, "By the way, I will familiarize you with the daily work of the criminal police." ”

"Oh, by the way, Uncle Yu, yesterday Bureau Liu said that the case ten years ago, what kind of case is it?" The two of them had already walked to the police compound while talking, and Bai Tianqing couldn't help but ask the question that had been bothering him since yesterday afternoon. Yu Qian's body stiffened when he walked to the front of the car, and Bai Tianqing felt that the air suddenly cooled.

"Uh... I'm just curious, and I don't really want to know..."Bai Tianqing saw that the situation was not good, and hurriedly changed the topic: "Uncle Yu, don't we drive a police car?" ”

"No!" Yu Qian coldly popped out two words, stretched out his hand to open the door of his car, threw the briefcase in, turned his head and said to Bai Tianqing, "Get in the car!" ”

……

After a while, Yu Qian had already driven to the community where Ma Wen's crime was located and knocked on the door of Ma Wen's landlord. The landlord's aunt was cooking at home, and she recognized Yu Qian from the cat's eye as the police officer who came to investigate the case the day before yesterday, and opened the door carefully.

"Hello, I'm the police officer in charge of Ma Wen's case, my surname is Yu, we've met before." YU QIAN SHOWED HIS POLICE CARD TO THE LANDLORD'S AUNT: "DO YOU REMEMBER? ”

"Remember, comrade police, didn't you finish the investigation that day? I know everything I know and go to the police station and what is that one called? Ah, I told Xiao Wang, he remembered everything, why did this come again? The landlady was obviously not very worried about her stove, and glanced in the direction of the kitchen as she spoke.

"That's the case, we found that there are still a little doubts, and we want to see the scene again, and I hope you can cooperate." Yu Qian explained, holding on to the door frame

"Huh? Do you want to see it again? Didn't you inform me yesterday that the lockdown was lifted, why do you still look at it, I'm cooking, and I can't leave" Hearing Yu Qian say that he had to watch the scene again, the landlord and aunt became anxious.

"If it's not convenient for you to go, just give us the key, and I'll send it to you after the investigation." Yu Qian was afraid that the landlord's aunt would refuse, so he sneaked out to investigate, and he didn't have a search warrant in his hand, so if he was refused, he would be in trouble.

"You don't need me to go, that's good." I heard that there was no need to accompany her, so the landlord and aunt happily agreed, let the entrance open, and invited, "Comrade come in and sit down, I'll go get the key for you." ”

"No, no, let's just wait here." Yu Qian waved his hand and excused himself.

The landlord's aunt walked into the kitchen quickly, and there were a few ping-pong stir-fry sounds from inside, and the aunt turned off the fire a little more, and then went into the bedroom to get the key for Yu Qian, Yu Qian took the key and told him to disturb and took Bai Tianqing straight to the building where the crime was found.

Standing at the door of the corridor, Yu Qian suddenly had a wonderful feeling, as if something was rejecting his arrival, and there was a smell of rejection wafting in the air. The corridors of the old-fashioned buildings have an eerie feel even during the day, and the narrow corridor windows are heavily dusty and dirty, blocking the sunlight to death.

Yu Qian coughed heavily, and the corridor sensor light reluctantly lit up, exuding a lazy glow. The two walked to the third floor in this slightly depressing atmosphere, Ma Wen's rented room was at the end of the corridor on the third floor, a row of four families, only the corridor window next to Ma Wen's room was still clean, and the warm sunlight shone on the rusty door, as if pulling time and space back into the past, Yu Qian stepped forward and pulled the seal, frowning.

"Haven't you broken the seal yet?" Bai Tianqing said curiously: "Didn't the landlord just say that it was unsealed yesterday?" ”

"After the on-site seal notice is lifted, it is generally the family members or owners who come to tear it up, and the police force will not send someone to make a special trip." Yu Qian explained, picked up the seal and looked at it carefully, small

The heart folded up and put it in the evidence bag that he carried with him. Insert the key, open the door, and flash into the room.

"Put your shoes on." Yu Qian threw Bai Tianqing a pair of shoe covers and walked cautiously towards the house

"Uncle Yu, why do you have everything on you?" Bai Tianqing asked while putting on his shoes, "Why do you want to put up the seal?" ”

"There may be some problems, wait until you go back to the police station to investigate." Yu Qian said casually and looked around the room, Bai Tianqing didn't know what to see, and pretended to follow the east and west.

The items on the scene were moved cleanly, and there was nothing worth seeing for a while. Yu Qian made up the scene while inspecting.

"Xiaobai, if you stay at home and don't go out, how many days can you stay?" Yu Qian asked coldly.

"Me? It's just a day... I couldn't stay the next day, but I had friends who could stay at home for a month without leaving their rooms. ”

"A month? What about eating and drinking Lazar? Yu Qian said curiously.

"You still have to go out of the room to go to the toilet and buy outside, and you will also have a lot of snacks in the room, I mean you don't go out of the room except for such necessary things." Bai Tianqing explained

"Normally, this kind of life is forced to end by the garbage piled up in the house."

"So if you don't play with your phone or computer, what if you don't have any entertainment? How long can that friend stay at home? ”

"That's... Maybe I won't be able to stay at home for a day..."Bai Tianqing thought about it and replied.

Yu Qian watched it and squatted in the middle of the bedroom, constantly restoring the situation at that time in his mind. Because Ma Wen's family could not be contacted at that time, the police sealed all Ma Wen's personal belongings and brought them back to the police station, at this time the scene was empty, and there were no items worth paying attention to. Yu Qian speculated about Ma Wen's state at that time, and raised his hand to point at Bai Tianqing

"I said, you remember."

Bai Tianqing hurriedly took out his notebook and followed behind Yu Qian

"Ma Wen, female, 22 years old, the third year of XX University XX Department, after graduating from high school, her parents divorced and were sentenced to her father, she was very bad in her childhood, her father went abroad and did not know where she would only pay living expenses regularly, extremely insecure, and her mother remarried a year later, she was homeless, and she rented a house near the school every winter and summer vacation. Boyfriend Li Yaozhan went to the field on the 12th for a business trip, and the two were emotionally stable and did not see anything abnormal on the phone. On Valentine's Day, February 14th, I received a DHL international courier, and I opened the courier next to the bed, which was a small object, fragile, and wrapped in many layers of foam. After that, she didn't go out all day, no, she wanted to go out, she put on makeup, picked out clothes, picked out shoes from the shoe rack, but gave up going out again, and the clothes were thrown on the floor, and the cans that were later drunk were pressed on them. At four o'clock in the morning on February 15th, I woke up from a nightmare and called my boyfriend, after which I continued to suffer from insomnia and drank two bottles of beer..."Yu Qian thought about it with his eyes closed, imagining Ma Wen's state in the house as he walked.

"Uh..."Bai Tianqing listened and remembered, not knowing what Yu Qian was doing

"After that, she continued to drink heavily, lying in bed most of the time, the phone was turned off when the battery was out of power, but she didn't want to charge, she became afraid of light, afraid of sound, tightened the curtains, covered herself in the quilt, most of the time she slept in a daze, drank intermittently, her mental state was very poor, she was on the verge of collapse, and she sweated a lot on the bed, probably in ZW..."

"I went to the refrigerator in the kitchen several times to get drinks, and this state lasted until the 22nd. During the period, there was almost no eating, no, nothing was eaten, and the excretion was also carried out in bed, but there was no eating, so there was no defecation, on the morning of February 22, Ma Wen crawled from the bedroom to the kitchen again, opened the refrigerator door, took out a large bottle of pure water to drink, and choked herself..."Yu Qian paused violently, and Bai Tianqing, who was following behind him, almost hit Yu Qian's back.

"What's wrong, Uncle Yu?"

"She's holding something in her hand!" Yu Qian's eyes suddenly bloomed with a compelling gaze, "When the fingerprints were collected, there was only a palm print on the bottle, and only half a palm print was picked on the right hand!" Yu Qian stretched out his clenched right hand

"She's holding something in her right hand! So she is obviously not left-handed, but she unscrews the faucet with her left hand! ”

"Uncle Yu, how do you know she's right-handed?" Bai Tianqing asked curiously

"All the makeup that hasn't been collected on the dresser is on the right hand side." Yu Qian said casually, "There are many other details of the placement of items, in short, she is not left-handed." ”

Yu Qian squatted in the kitchen and looked at the lime line that had not yet been wiped off, thinking back, his eyes looking at the extension line along the painting mark marking the posture of his right hand, facing the drain. Yu Qian stretched out his hand behind his back and said to Bai Tianqing

"Xiaobai, give me the pen"

Bai Tianqing hurriedly handed the pen to Yu Qian, Yu Qian pinched one end and probed the pen into the sewer little by little, and soon reached the corner, but it was empty. Yu Qian thought about it, took out his mobile phone and pressed a number

"Hey, Xiao Liu?"

"What's the matter?"

"Who's in the tech room today?"

"Uncle Wang and I, Datou, and Xiaowan are all here."

"You bring the fingerprint object, come to Building XX in XX Community, don't tell others, I'm waiting for you in 304. Hurry up! ”

"Huh? Oh, okay, I'll be there right away" Forced by Yu Qian's usual accumulation, Xiao Liu hurriedly agreed

Hanging up the phone, Bai Tianqing was curious, "Uncle Yu, what were you doing just now?" ”

"I'm guessing what happened here a few days before and after the crime."

"Uh...... Didn't you say that you can't rely on reasoning to be a criminal policeman, but you have to rely on collecting evidence? ”

"So, aren't I going to call someone to come and collect evidence?" Yu Qian stared at the mouth of the sewer without blinking, and said slowly

"The proof, here!"