Criminal Investigation Files

The deceased's vomit now smelled of bitter almonds, and Lu Siyu suddenly noticed the position of Dong Fang's pillowcase, which seemed to have brown and black half-dry marks on it.In the other puddles of vomit, brown to dark brown things also appeared, mixed in the spit out blood, making it difficult to distinguish.

Since the source of the poison and more information have not yet been confirmed, all evidence at the scene must be more careful.

Lu Siyu took a cotton swab and picked up the lumpy brown object in the vomit. It was sticky and melted immediately. He looked at the texture and frowned slightly.

Seeing the change in his expression, Lin Xiuran asked him, "Did you find anything?"

Lu Siyu said: "There seems to be undigested chocolate in the vomit. Several people have different dinners, but they all ate chocolate."

Chocolate can well cover up the bitter almond flavor of green gas, and it can also make the eater relax their vigilance.Those few girls would not have thought that the last chocolate they ate in their lives took their young lives.

Lu Siyu rummaged through a few trash cans, found a box of chocolates in the one near the door, and handed it to Cheng Xiaobing, the physical witness.

Cheng Xiaobing is worthy of being a standard foodie, and he recognized it after just a few glances: "This is the Internet celebrity lava chocolate, which is very popular on the Internet recently. It is a big chocolate ball, which is wrapped with thick chocolate syrup. It is very difficult to make a reservation, and you have to wait in line for more than a week before you can get it, and then the whole process of cold chain delivery can ensure that the shape of the chocolate is complete." She turned her head and looked at the small refrigerator under the corner of the dormitory, "It was probably stored before. over there."

Lin Xiuran nodded and confirmed: "This may be the source of the poison. The specifics need to be further confirmed by autopsy."

Lu Siyu looked around, but did not let down his vigilance. Looking carefully, these chocolate sauces were all over the dormitory, on the paper towels, on the corner of the table... The sweet candy in the past has now become a deadly poison.

After checking the room, Lu Siyu went to the door to look again. Outside the door of dormitory 108, there was a deep corridor on one side and a small door on the other side. He walked over and tried to open it, but the door was locked. Yes, it can only be opened from the inside. Now that there is no key, and the lock is covered with copper rust, Lu Siyu can only fold it back.

The windows in the corridor were all set up with iron bars. He looked in that direction from an open window. There was a dead corner of the dormitory building, and the vegetation grew wildly here, because it was not easy to reach here. Forget about this corner, it's full of rubbish that fell from upstairs.

Lu Siyu was about to turn around and leave, but suddenly he heard a cat meowing from that direction, a trace of surprise appeared on his delicate face, this place has become a paradise for stray cats.

The witnesses also found this place, and asked the person in charge of the school, "Can this door be opened?"

The person in charge was a bit puzzled: "It can be opened, but the key is still on the side of the dormitory. There is a palm-sized platform outside, surrounded by walls several meters high, and thieves can't get in. Except for garbage, there is really nothing. We basically clean it once in the first half of the year.”

Lin Xiuran said: "We also do things according to the regulations, let's open this door and have a look."

The person in charge made a phone call, and not long after, a 40-year-old dormitory aunt went to pick up the key.When I walked past the door of dormitory 108, I wished I could stick to the wall and hide as far as I could.The aunt inserted the key into the door, and the dilapidated door lock creaked. She pulled the door open with both hands, and a gust of cold wind blew in from the outside.

Two evidence officers checked inside and out, and there was no sign of entry.The aunt came to lock the door again, and said in a rambling manner: "The last time I opened the door, a cat died outside. It smelled so bad that I found out that it was a black cat. It turned around and killed someone." Dead people are really evil. Amitabha, Amitabha."

The speaker was unintentional, but the listener was interested. Lu Siyu raised his head from the side and asked, "Are there many stray cats on this campus?"

The aunt nodded continuously: "Many, not just too much, it's simply too much. In spring, it's so noisy that people can't sleep."

"How did the cat die here?"

"Who knows...we don't know. Maybe it's sick, maybe it was bitten by a dog."

Lu Siyu thought for a while and asked, "Is the dead cat's body still there?"

The aunt seemed puzzled why he was chasing and asking a cat, and said, "It's been almost a month, and the body has been thrown away long ago."

The person in charge of the nearby school also said: "There are so many cats in this yard, it's not uncommon for a few of them to die." No one will take a few dead cats seriously.He thought for a while and added, "But it seems like a month ago, a few cats died once, and the sanitation workers who collected the garbage complained that there were a lot of dead cats at that time."

At this time, Song Wen, who climbed into the Audi, found a set of clothes and a pair of leather shoes in the trunk that Lu Siyu had mentioned, and sat in the spacious back seat with the things.A protective film is pasted on the car glass on both sides of the rear seat, so that the inside cannot be seen from the outside, which is just right for changing clothes.

Song Wen put on the spare pants that Lu Siyu had brought, and at this moment he finally understood what Lu Siyu meant to change together. It turned out to be a complete set of casual suits, the color was true black, and the material draped.Song Wen doesn't often wear formal clothes, and he hasn't tried this style much.

Although Lu Siyu looked a little thin, he didn't expect that the number of the clothes was exactly the same as that of Song Wen. As the saying goes, people depend on clothes, and Buddha depends on gold clothes.Song Wen, who had changed into a suit and leather shoes, took a picture from the rearview mirror of the car. The person in the mirror was handsome, handsome and unrestrained with a hint of seriousness.

Song Wen didn't dare to delay for too long, put on his shoes, and simply folded his clothes.As soon as he opened the car door, he saw Fu Linjiang locked the car and got out of the car. The two looked at each other for three seconds. Fu Linjiang seemed to recognize Song Wen. He took a step back and asked, "Captain Song! This is not your style, you... ...isn't this about going on a date?"

Song Wen looked at his attire, it was indeed misleading, but he mercilessly turned back, "Who are you dating at the crime scene in the middle of the night?" He hid the fancy pants and thought about something reasonable. Explain, "My clothes are dirty, so I borrowed Lu Siyu's spare clothes to wear."

At the scene, various environments were complicated, and it was common to get dirty clothes. Fu Linjiang thoughtfully did not mention this matter, and asked, "How is the situation at the scene?"

Speaking of this, Song Wen became a little heavy again: "It's very miserable, Lao Lin and Lu Siyu are here."

As the two walked in, Fu Linjiang sighed and said, "I didn't expect this kind of thing to happen in Nancheng. Every school-related case seems to attract attention."

While talking, the two came to the door of the crime scene. The forensic doctor and physical evidence had already completed the basic investigation. Lin Xiuran and his assistant were also preparing to put the body into a black body bag. Some results should be available.

Lin Xiuran met them face to face, and nodded with satisfaction when he saw Song Wen's outfit, expressing his affirmation, "Captain Song, you should change your style occasionally." He continued: "The records on the scene are almost complete, and the collection of physical evidence is basically completed. , collected many traces of chocolate, found four mobile phones, the password has not been cracked, we focused on some tableware and cups, and the water dispenser was also extracted."

Song Wen nodded and completed the handover: "Leave us a camera and an evidence bag, we will search again, and we will ask the reporter when we have finished searching here."

After making the arrangements, Lin Xiuran said, "I'll take the corpse away for an autopsy, so I'll leave first."

Lu Siyu took the camera handed over by Cheng Xiaobing, turned his head to look at Song Wen, turned his eyes up and down on him, and nodded with satisfaction: "Captain Song, you look good in this outfit."

After Lin Xiuran and another forensic doctor left, the small dormitory immediately became much cleaner. Song Wen went to the window and opened it, and the smell in the room immediately dissipated a lot.The corpse on the ground has been carried away, and a fixed line for traces of the scene has been drawn according to the final shape of the corpse for reference.

Lu Siyu handed Song Wen a few forms, and licked his lips habitually, "Just now when you went to change clothes, someone from the school came and said a few polite words, you must fully cooperate, etc. They also sent the school status materials of four students."

Song Wen took the form and looked through it. Apart from Dong Fang and Ma Aijing, who were known to be dead, there were two other people on the form. These two were sent to the hospital. One was Guo Wei, and the other was Lin Wanwan. , are still being rescued.

Lu Siyu continued: "Guo Wei was the one who ran to other dormitories to call for help and drew attention. Lin Wanwan was the least poisoned and was basically awake when she was found. She called 120 first, so the police and ambulance almost They came at the same time."

Song Wen looked at the four beds and the tables and chairs in the dormitory: "Let's line it up, whose bed is next to the door?" The bed was made of blue sheets, and there were some study books on the desk below. All kinds of sticky notes were posted, the table was full of paper and pens, and things were a bit messy.

"This one belongs to Guo Wei, and Lin Wanwan lives opposite her." Lu Siyu continued, Lin Wanwan's bed sheets are plain beige, and the desk is the cleanest, with the fewest things, and not many daily necessities , it can be seen that she is a girl who loves cleanliness.

The one on the inside, the one with the pink bed sheet belonged to Dong Fang. Before she was alive, Dong Fang was a standard rich second generation. In addition to books, there was a laptop, some cosmetics on her desk, and piles of them on the chair beside the bed. Full of clothes, the small fridge looked like it belonged to her too.

The last bed belonged to Ma Aijing, and there was a desktop computer. There were a lot of melon seed shells in the trash can, and some snacks on the table. Then they opened the girls' cabinets according to the numbers, and matched their identities one by one.

Song Wendao: "The poisoning cases in most schools are inseparable from the dormitory. You should search this dormitory carefully to see if you can find any useful clues." Get valid information.

The three of them searched the dormitory inside and out, and checked the time. It was close to three o'clock in the morning, and Song Wen asked, "Linjiang, what did you find?"

Fu Linjiang said: "It's all regular things, books, materials, clothes, and daily necessities. I didn't find anything special. Oh, by the way, I found an apron at Lin Wanwan's place. It may be worn by part-time workers. It says Two words, Xinxin. But I searched around for reviews, but I couldn’t find a restaurant called Xinxin nearby.”

Song Wen turned his head and asked Lu Siyu, "What about you? What did you find?"

Lu Siyu raised the record sheet in his hand: "It's all recorded on the sheet."

Song Wen raised his eyebrows: "Tell me something that cannot be recorded on the list."

The things recorded on the survey form are relatively simple, and the field search often draws some conclusions based on the information seen. These conclusions can be inferred, but because they are inferences, it is not easy to record.

Lu Siyu thought for a moment, then tilted his head and said, "Among these four people, Dong Fang is the richest in the family, but she is careless, her things are messy, and her personal hygiene is poor; Ma Aijing has been studying for a year , she is the prettiest, likes to play games and make friends, recently she is playing a popular online game, she plays it very frequently, it should be before lights out every day; Lin Wanwan is the one who likes to be clean the most, she She has a different surname from her current father, so she should be a stepdad. There is a younger brother in her family who doesn’t go home often, and basically stays in the dormitory on weekends; Going to work, she is a third-class student at the hospital level, suffers from neurasthenia, needs to wear earplugs when she sleeps, and often travels to the school hospital."

Hearing these words, Fu Linjiang was taken aback. He also saw that he found a lot of things, but he obviously didn't think of them.Just as he was about to interrupt, Song Wen seemed very dissatisfied, and continued to question Lu Siyu, "You didn't just see this, did you? You know that I asked you more than that."

Lu Siyu looked at Song Wen, who tilted his head slightly, wiped his lower lip with the thumb of his right hand and looked back at him, his dark eyes seemed to see everything.

Song Wen saw Lu Siyu searching for everything just now, and based on the track and time of Lu Siyu's inquiry, he could tell which clues he had paid attention to.

Song Wen's eyes seemed to be asking Lu Siyu, since he had seen it all, why didn't he say it, and he just reminded him last night.