We walked into Han Xiaoman's rental room, and the room was still the same as when Han Xiaoman lived.

The garbage at the door has not been thrown away, the clothes drying on the balcony have not been collected, and there is still a leftover half cup of milk tea on the table.

Judging from the current situation, it is unlikely that Han Xiaoman will be kidnapped for ransom, because so far, Han Xiaoman's parents and friends have not received any news of the kidnappers.

Then there are two possibilities for the nature of this case, one is revenge injury, if so, Han Xiaoman's hope of survival will be extremely slim, but judging from Han Xiaoman's social relationship investigation, Han Xiaoman is friendly and never makes enemies, so the possibility is very small.

Then there is only one last possibility left - the detention of strong women.

After careful investigation of the scene, there are no traces of damage to the doors and windows of the room, and there are no traces of a fight at the scene.

Jiang Tingbai took the ultraviolet detector and carefully checked the door lock, he calmed down, got up and said: "Judging from the current situation, there are two possibilities, the first is that the murderer asked Han Xiaoman to open the door by himself by knocking on the door and calling the door, so as to enter the room to commit the crime. Second: The killer has a spare key. ”

After Li Meng listened, she couldn't help but substitute herself into the fixed plot, she thought about it, and shuddered suddenly: "If it's the first one, it's too terrible, Han Xiaoman is sitting in the room waiting for takeout, but what is waiting is a pervert with takeout." ”

"This is extremely unlikely, first of all, the situation in the kitchen, Han Xiaoman should usually cook and eat at home, even if there is a knock on the door like a delivery person, at least there will be traces of a fight in the house, but we didn't find anything."

After ruling out this possibility, I asked, "Who has the spare key?" ”

Lin Zifan held the clue information compiled by the current criminal police in his hand and said: "Han Xiaoman once said to his best friend Li Tingting that there are only three keys in total, except for Han Xiaoman, who has one, and the remaining two are in the hands of Han Xiaoman's parents and the landlord, the landlord is a middle-aged woman, who is now playing at the beach and has no time to commit crimes." ”

Jiang Tingbai thought about it, and immediately shook his head and said: "Let's not just think about the spare key, the murderer may have secretly equipped a key, or is proficient in lockpicking technology, maybe the murderer is a locksmith?" Han Xiaoman had asked him to open the lock, so he knew about Han Xiaoman's situation. ”

Lin Zifan immediately denied Jiang Tingbai's idea and said: "The police have already investigated from this aspect, Han Xiaoman has never found someone to open the lock, even if this is the case, there will definitely be traces of fighting." ”

"In any case, the murderer must be very familiar with Han Xiaoman's natural situation, at least know that she lives here alone, and is familiar with Han Xiaoman's work and rest rules, so he will enter the room and commit the crime without Han Xiaoman noticing." This is another case without any clues, I thought about it and asked Xiang Li Meng: "Xiaomeng, what do you think of this case?" ”

When there are no more clues, the crime profile becomes the only clue.

Li Meng leaned his back against the wall, one hand in front of him, the other hand supporting his chin, thinking carefully:

According to the description of Han Xiaoman's best friend Li Tingting, Han Xiaoman often felt that he was being spied on for a long time, and at the same time, his clothes were turned and lost. And Han Xiaoman also said that his bed seemed to have been lying down, but he was not harmed...... If what she said happened was true, then the murderer must have been voyeur monitoring Han Xiaoman for a long time, familiar with her situation, and combined with the fact that the property in the house was not lost, it means that the murderer is obviously going towards Han Xiaoman! ”

After Li Meng finished speaking, he paused and gave a preliminary criminal profile: "The murderer is male, over thirty years old, ugly in appearance, or physically defective, and the possibility of mental retardation cannot be ruled out." Single and never in a relationship, because of his appearance conditions, there are no women who want to contact her at all. He is extremely lacking in self-confidence and is currently doing low-level manual labor work.

He longs for love, precisely because he has never gotten love, love is in his head, just a beautiful fantasy. This kind of beauty is a long-term companionship of mutual affection, not just a kind of sexual satisfaction, so he lay next to Han Xiaoman but did not hurt her.

The reason why he chose Han Xiaoman may have been an unintentional encounter, Han Xiaoman completely met all his fantasies about love, so he had a pathological love for Han Xiaoman, he had lovesickness and wanted to see Han Xiaoman all the time.

He spied on Han Xiaoman many times, and even sneaked into her room just to see her. He lay on Han Xiaoman's bed, looking at Han Xiaoman who was sleeping beside him, and he began to fantasize about his life with her in the future......"

"It's really perverted!" Jiang Tingbai couldn't help but shudder after hearing this, what a terrible thing it was to have such a perverted moment staring at him by his side.

"According to the analysis of the crime profile, one of the first prerequisites for the murderer to commit the crime is to be able to meet Han Xiaoman, Han Xiaoman is a micro-businessman, usually works at home, and only goes out in his free time, which shows that the murderer must be working and living around here." I said lightly.

After sorting out the clues, I deployed the preliminary investigation direction of the serious crime team for this case: "Expand the search range from here to the surrounding areas, Han Xiaoman has lived here for almost a year, judging from the time he has been targeted by the murderer, the murderer's work is very mobile. Focus on screening eligible waste pickers, sanitation workers, couriers, security guards, etc., as well as temporary workers who work in the vicinity to pick locks, drainage, repair household appliances, etc. ”

At this moment, Xue Hang, who had not spoken, stood on the balcony and said slowly: "I know how the murderer entered the room. ”

At this time, Li Meng and I were standing downstairs, Jiang Tingbai and Lin Zifan were standing on the balcony, and we were looking at each other in the air.

Security windows are installed on the balconies on the first and second floors, which provide security and a ladder for thieves to climb to the third floor.

Xue Hang took off his coat, grabbed the anti-theft window on the first floor with both hands, and easily climbed up to the anti-theft window with a slight touch of his feet.

After climbing over the anti-theft window on the first floor, he hooked the railing with his toes, leaned back slightly, grabbed the anti-theft window railing on the second floor, and pulled hard with both hands, and his whole body hung on the anti-theft window on the second floor.

Repeating the same action, in less than two minutes, Xue Hang entered the balcony on the third floor.

At this moment, I suddenly noticed that in a corner not far away, there was a man squatting, holding a mobile phone to shoot at us......