The relevant identification data was quickly retrieved, and the pollutants extracted from the suspect's clothes and arms were consistent with the composition of sewage and ground dust extracted in the roadway, and the source could be determined.
The particulate matter adhered to the contusion wound in the back of the head has been identified as general-purpose Portland cement particles, which are mostly used in ordinary buildings and do not have specificity.
After silently writing down all this information, Yu Yuan and the others stopped struggling, and ran to the lounge to get ready for sleep, and they could lie down for about four hours at this time, which was better than nothing.
At eight o'clock in the morning, the morning regular meeting was held, and Yu Chen directly arranged today's work for each group.
Needless to say, the focus of today's investigation team is naturally to find out Zhou Xingtai's interpersonal relationships clearly; The graphic investigation continued to investigate and monitor, and found a way to lock the suspect vehicle through the surveillance video provided by the traffic management bureau; The technical team assisted Yu Yuan and the others to sort out Zhou Xingtai's recent communication records and travel tracks.
After the meeting ended, Yu Chen officially unloaded his job as an "interviewer" and handed it over, so he went to buy breakfast, bought two bottles of Red Bull by the way, and then returned to his office and distributed the things to Yuan Youchong.
"Hurry up and eat," he said as he nibbled on the steamed buns, "I can't say when there will be progress, and we have to get out of the horse." ” "Take it easy, be careful of choking, there's not much time to be nervous at this time, and there is no shortage of such a few minutes."
Yuan Youchong was quite calm.
After swallowing the steamed buns, he glanced at the Red Bull on the table again, and couldn't help but complain: "You can't buy a cup of soy milk or a bottle of milk or something, Red Bull with steamed buns, what a weird taste" "I forgot to buy it."
Yu Chen rolled his eyes: "Let's eat it, if you think it tastes strange, you pour a glass of white water." ” "Tsk" Yuan Youchong pouted: "You can remember to buy pickles for steamed buns, forget to buy soy milk, forget it, I'll make a cup of tea, do you want to?"
"I'll drink it if you soak it."
"If I don't soak in feelings, you will be worthy of Red Bull, and I will be lazy with you" After breakfast, the two rubbed into the technical team and wanted to ask if there was anything they had found here.
As soon as he entered the big office of the technical team, Fan Yuhong greeted him and said, "Team Yu, Team Yuan, you two came just in time, I just wanted to send someone to inform you." ” "Oh" Yu Chen immediately asked, "Have you found anything?"
"Hmm."
Fan Yuhong said: "Through the hotel's online registration system, we have identified the hotel rented by Zhou Xingtai. ” "Hotel" Yuan Youchong frowned: "Isn't he in the house he rented in Xin'an, there is a registered mailing address on the file, why did he go to live in a hotel?"
"Maybe it's for the interview."
Fan Yuhong shrugged his shoulders and said: "It's on the edge of our detachment, a distance of more than two hundred meters, and I paid the room fee for four days directly, and it was due at noon on the fifth day." ” "I think since he's a web novel writer, he should be wearing his notebook, and it's probably still in the hotel."
Yuan Youchong snorted and said, "Let's go to the hotel and have a look." ” "Okay."
Fifteen minutes later, Yu Yuan and the others led Cheng Wei and the other two trace inspectors to the target hotel, and after explaining their intentions at the front desk, the proprietress immediately expressed her willingness to cooperate, took a spare room card and opened the room opened by Zhou Xingtai.
After the door opened, Yu Chen didn't go in for the first time, but asked, "Boss, has this room been cleaned?"
"Not yet."
The proprietress shook her head and said, "We usually go in to clean after the guests check out, and if the guests don't check out, we will wait for them to go out and ask if they need to be cleaned."
The guest didn't say that we wouldn't go in. ” "That's right."
Yu Chen bowed slightly, and asked again: "In other words, no one has been in or out of this room?"
"We haven't been in or out anyway."
The proprietress said, "But if he wants to give the room card to someone else, he can also come in."
There are so many rooms, I can't remember every guest. ” "Got it."
Yu Chen snorted and said, "Thank you for your cooperation, you can go and get busy first." ” "Hey, okay."
The proprietress nodded and left.
Yu Chen and Yuan Youchong stepped out of the way, and let Cheng Wei and a few trace inspectors go in to investigate.
After standing at the door for about twenty minutes, they heard Cheng Wei say that they had finished the investigation, and then they walked into the room, turned their heads from side to side, and glanced at them roughly.
Cheng Wei said: "Everything in the room is normal, no suspicious traces have been found, and this is obviously not the scene of the crime." ” In addition, the victim's mobile phone was not found, but his wallet was found, which contained about 2,000 yuan in cash, bank cards, and ID cards.
The backpack was also still on the bedside table, and two power banks, a mobile hard disk, a USB flash drive and several professional books were found.
Oh, and there's also half a bottle of iced tea on the bedside table. ” "There was also a suitcase, twenty inches, full of clothes and travel kits, sunscreen, etc.
A camera bag was found, which contained a Nikon D7200 SLR camera, a 35mm prime lens, an 18200mm zoom lens, a charger, and other items. ” "There is a laptop on the desktop, the computer is connected to the charger, the screen is on, but the power is out, according to this, the laptop is still in working state when Zhou Xingtai left.
However, because the hotel room was plugged in to get electricity, he took away the room card, and the laptop naturally lost power supply, and the power was exhausted. ” After listening to this, Yuan Youchong nodded and said: "The wallet is still there, the computer screen is not covered, and the power is consumed, which shows that the nature of his last departure from the hotel is a temporary outing, and he does not plan to stay for a long time." ” "Moreover, it shouldn't be to eat or anything, although mobile payment is quite convenient these days, but when you go out to eat, you will still bring your wallet with you."
Yu Chen pointed to the suitcase on the ground and said, "In comparison, I'm more curious about the luggage items he carried.
I can understand that he carries a computer with him, but what are he doing with a suitcase, a DSLR camera, etc., and the hotel is open for four days, so it's not necessary for an interview."
"Well," Yuan Youchong answered, saying: "The luggage is easy to understand, the preparation is so sufficient, obviously I want to go on a long trip, I guess I plan to go on a trip or participate in some activities after the interview."
But the hotel opened for four days, which is indeed a problem. ” "That's right," Yu Chen said, "It's very contradictory, if he plans to leave immediately after the interview, there is no need to open a room for four days at all."
And if he is not in a hurry to leave, there is no need to bring so many things, just go home after the exam and clean up. ” "Let's bring all these things back first."
Yuan Youchong said: "Let the technical team check the computer to see if you can find something through the chat history of the social software." ” Punishment and murder :