The surroundings were still quiet, and colleagues were all nervous and busy. She had a sense of emptiness that she was suddenly in the middle of nowhere.

Xu Mengshan noticed that her face was wrong: "What's wrong?" ”

You Mingxu replied: "It's hard to say." I'll show you some information. Now, we'll have to take a closer look at it! ”

The colleagues and forensic doctors in charge of the on-site identification had arrived, and the whole house was enveloped in a calm atmosphere.

You Mingxu and Xu Mengshan are used to starting from scratch and sorting out the logic.

First of all, Luo Ting got off work at 2 o'clock the night before yesterday, took the night bus home, and arrived home at about 2:30. She was dead before 10:30 a.m. yesterday. A more accurate time will have to wait for the forensic conclusion.

You Mingxu said: "You go and ask that roommate, has Luo Ting been close to any man recently?" ”

Xu Mengshan went downstairs. The roommate was downstairs, with the police.

During the time he went downstairs, You Mingxu checked the gate inside and out again, called Xiaoyan again, and sent photos to make sure that the gate not only did not have any traces of forcible entry, but also was not unlocked with tools.

Xu Mengshan came back and said, "My roommate said that Luo Ting is single and hasn't been close to anyone recently. If there is, she will definitely know. I don't think she's suspicious. ”

Of course, whether the roommate is suspicious and whether her words are credible will be verified by the police from other angles later. But if this assumption is true, it means that it is likely that it was not an acquaintance who committed the crime.

Xu Mengshan and You Mingxu both fell into deep thought. If it wasn't an acquaintance and the lock was not opened, Luo Ting was sleeping again during that time, how did the murderer get in?

Both remembered a burglary they had handled before, and they had the same situation.

"Tailgating?" You Mingxu said.

Xu Mengshan's eyes also lit up: "It's very likely." There are quite a few people living in this building, and if he goes in and out after dawn, it is very risky. But judging from the scene, his stay was not short. If you are following the victim into the house, it is the best time to commit the crime. I'll have people check the surveillance around 2:30 to see if I can spot witnesses. ”

You Mingxu nodded and said, "If it was really tailgating into the house, there were no obvious traces of a fight, and there were no other external injuries on the deceased's body, it means that the murderer subdued the victim in an instant." ”

Xu Mengshan: "Is it possible that drugs were used?" ”

You Mingxu: "It's possible, look at the autopsy results." ”

In a few words, the concise and clear logic determined the first possible focus of the investigation: the tailgating in the surveillance around half past two in the morning.

The two went to the living room again, and after a closer look, they found no clues. Everything was neatly laid out, a typical homely home for two single girls. Forensic officers also said at this time that they did not find any suspicious footprints, blood stains or hair in the house. As for fingerprints, the vast majority belong to two people, which should be two girls. They didn't expect much to be able to find the fingerprints of a third suspicious person.

Then go back to the bedroom.

The first time you come in, everyone's attention is drawn to the corpse. This time, You Mingxu's attention was more focused on other things in the room.

The curtains are light pink and have a girlish feel. There was also a desk in the room, and a chair was placed in the corner next to the main table. There are no books on the table, and there is a desk calendar with anime printed on it. You Mingxu picked it up and flipped through it, and found that Luo Ting had marked the weekly work shift rest arrangement on the top. There are also some special arrangements, such as last month, there was a mother's birthday, a colleague dinner, and so on. Apparently a very meticulous and serious girl.

You Mingxu opened the wardrobe again, and in addition to two backpacks, it was clothes. Judging from the style, they are all relatively conservative, without any jumping or revealing style.

She was crouching at the head of the bed, rummaging through the contents of the bedside table, when a colleague in charge of forensics came over and said, "There's a situation." ”

You Mingxu and Xu Mengshan both stood up.

The forensic colleague took them to the corner, pointed to the chair and said, "The murderer must have been very careful, except for the bed, there was no blood in the rest of the room." Only on the back of this bench, I found a drop of blood, relatively fresh, we have extracted. ”

Xu Mengshan touched his chin.

You Mingxu also approached the chair to look, and sure enough, he saw a drop of bright red blood on the back of the chair, although it had dried up, but as the forensic staff said, it was still fresh, that is, it was probably left the night before.

This discovery lifted the spirits of You Mingxu and Xu Mengshan.

If it's the murderer's bloodstains, that's great.

However, You Mingxu felt that this was unlikely, and the situation in the house did not indicate that the murderer was injured. If it's Luo Ting's bloodstains......

You Mingxu stood beside the chair and looked at the bed, it was at least one and a half meters apart, interesting, how could the blood stains come here? And if there is only one drop, it must not be sputtered, but accidentally rubbed.

——

In the afternoon and evening, the police quickly completed the on-site exploration and preliminary investigation.

First of all, Luo Ting is from this province, came to Xiangcheng to work, and has been doing massage for two years. The bathing city where she works is 3 kilometers away from home, and every time she gets off the night shift, she takes the night bus home alone.

The roommate's suspicion was definitively ruled out, she had an alibi, and there was no motive for the killing. Luo Ting's murder also had a great impact on her roommates. The roommate's words were also confirmed to be true - whether it was parents, colleagues in the bathing city, or other friends, they all said that Luo Ting did not have a boyfriend, and she had not been very close to any boys recently.

Luo Ting's personality is very honest, diligent and diligent at work, keeping to herself, and treating others gently and tolerantly. She wasn't very good in Bathing City, but she never made a grudge against anyone. Her family relationship is also very simple, her parents are honest and ordinary working-class people in a small city.

At the time of the killing, she still had more than 100,000 deposits in her bank card, and there was neither financial burden nor borrowing.

In other words, the possibility of love killing, smashing and economic disputes has been ruled out.

In addition, the medical examiner gave detailed autopsy results: it was confirmed that the exact time of Luo Ting's death was between 4:30 and 5:30 yesterday (that is, Saturday morning). The cause of death was suffocation and was caused by ropes. However, it is inferred from the texture of the strangulation marks that it is the most common kind of thick hemp rope on the market, and it is difficult to find out the source.

The bilateral ****** ~ was cut off and taken away, and was not found at the scene. The injuries of yin~bu~ are inflicted by a sharp object similar to a dagger. Both of these injuries are caused after death.

There are no signs of sexual assault.

In addition, the medical examiner also found a small amount of neuroparalytic drug residue in Luo Ting's body, which was inferred to be inhaled through the nasal cavity.

It's just that this kind of neuroparalytic drug is available in major hospitals, and although a prescription is required, it can also be obtained in some private clinics and on the black market. So for a while, it was impossible to find out the source of the drug.