Chapter 577: Covering Tightly Is Useless
He hurried back to the main team. While Mao Yi retrieved Sun Siyu's husband's information, Jiang Yang was already sitting in front of his work station and once again checking the gate monitoring of Jiayuan Phase I.
There are a lot of people coming in and out of the community every day.
Apart from property owners and tenants, the most common ones are couriers and takeaway boys.
Everyone wears the same uniform and the same hat.
From a surveillance perspective, it's hard to tell who's who.
Especially those whose body features are not obvious.
Just at the time Sun Siyu narrated, no less than ten couriers appeared.
"Damn! I cover it so tightly that I can't even see my face!"
Ji Dayu came close to Jiang Yang's head, frowning and staring together.
Several angles were captured on the computer screen at the same time, and at first glance they all looked the same.
They are all tall and thin young men, and even their skin color is similar to yellow.
"Didn't I say that Datong Express rules our Fu City? Why are all the companies coming and going from their company? I don't see a few from other companies."
Gao Jinyang also added.
Both of them are impatient. They are like artillery and can be fired at a moment.
Jiang Yang smiled lightly, clicked on two of the pictures with his mouse, and said with certainty: "It should be him."
The two pictures he enlarged were one from the side and one from the back.
The former was captured by surveillance when entering the main entrance of the community, and the latter was photographed when leaving.
It could be seen that the man lowered his head intentionally, and the time between the two was about forty minutes.
That's enough time for a young adult male to kill someone.
Unfortunately, his facial features were completely obscured by the hat.
To ordinary people, it is completely unrecognizable.
But Jiang Yang's observation skills are quite keen, and with his skill bonus, it didn't take him much time to accurately identify the "delivery boy" that Sun Siyu mentioned.
"Although you can't see the front, please look carefully at the shoes and hair in the two screenshots," Jiang Yang explained to the two people who looked suspicious, "If shoes are issued uniformly by the work unit, then the method of tying shoelaces varies from person to person. There are still many habitual differences.”
"In these two shots, his shoelace tying method and appearance are exactly the same. Let's enlarge the screenshot. Here, do you see? There is an obvious dark color on the dark yellow work shoes, which was not there before he entered the community."
Having said this, Jiang Yang raised his head and looked at the people who were gradually gathering around him, "I have reason to suspect that the stains on his shoes are probably the blood of the deceased."
Jiang Yangcha's surveillance capabilities have always been great.
Many times the murderer can be found with just a silhouette.
But this time it's different.
Sister Wang took the mouse and pulled it around, then hesitantly said: "What Jiang Yang said does make sense, but these are all your own guesses."
"First of all, the identity of the other party cannot be identified from the surveillance alone. We must contact Datong Logistics to find the information of all the couriers who delivered to Jiayuan near this time yesterday, and then exclude them one by one."
"Another point is that we only have video evidence of the other party entering and exiting the community, and there is no evidence that he entered the deceased's home. Even if he is really the target suspect, it is very likely that he will get rid of all the clothes and shoes immediately when he returns."
"Besides, identities can be faked. Logistics itself is a mess, and two years of rectification has achieved little results. Most express delivery sites are contracted by logistics companies, and the five insurances, one fund, and social security may not be paid to employees. , so there is considerable room for falsification of the verified information.”
At this point, Sister Wang paused before continuing helplessly: "What's more, we don't have any substantive evidence. Is it possible to conclude that he is a suspect just by the appearance of him and Sun Siyu?"
"It's useless even if we think it's suspicious. It's not enough evidence to prosecute. What if at the end of the investigation, they really went upstairs to deliver a courier and wanted to exercise so they didn't use the elevator?"
"These are all possibilities."
After Sister Wang finished speaking, Gao Jinyang and Gao Jinyang nodded in agreement.
"Oh, it's all my fault that Jiayuan Community is obviously a high-end residential area, why is it so miserable? The cameras don't cover the whole community! It's amazing."
“My six-story public building is covered with surveillance cameras!”
Ji Dayu complained depressedly.
Jiang Yang stood up and patted him on the back, raised his eyebrows slyly and said with a smile, "Who said I don't know the identity of the suspect?"
"ah?"
Gao Jinyang was stunned, and immediately shouted in surprise: "Brother Yang, if you have any ideas, tell us earlier! We've been stuck here for a long time!"
"That is to say! I have been analyzing for a long time, but you have found the suspect? Come on and tell us who it is!"
Sister Wang glared at Jiang Yang and urged him curiously.
"Brother Mao, has Sun Siyu's husband information been retrieved?"
However, Jiang Yang just gave Sister Wang a look, asking her to wait, and then went to greet Mao Yi.
When they suspected Sun Siyu, the police had already sorted out the relevant identity information in advance, and it was enough to enrich it now.
Others didn't understand why Jiang Yang mentioned Sun Siyu's husband.
"Just done!"
Mao Yi wiped the sweat from his forehead, printed out a dozen pieces of paper and stuffed them into Jiang Yang's hands.
"Dong Li, from a department at Sun Siyu University, received a scholarship for outstanding student representatives for three years. When he was a senior, he had the opportunity to pursue a graduate degree, but later gave it up in order to go out to work early and make money."
"He is a very upright person and has good interpersonal relationships at school. He is often teased and gossiped about by Sun Siyu. In the past, someone posted their love story on the confession wall on campus."
"In the beginning, Dong Li took the initiative to pursue her. We just let nature take its course and we got together. The marriage was faster than the expectations of friends around us."
Apart from written materials, Dong Li has published quite a lot of photos.
Jiang Yang looked at them one by one. Most of them were photos of him winning prizes in various competitions he participated in during his time at school, as well as records of speaking abroad as a freshman representative, outstanding student, etc.
Recently, there is a group photo of Dong Li attending a technical exchange meeting.
The man in a suit is quite decent and impressive.
The only thing is that he is too thin. At 1.8 meters tall, he does not look more than 130 pounds.
"Do you see anything in common between Dong Li and the courier?"
Jiang Yang scanned ten lines with one glance and passed the information in his hand to Sister Wang.
"What? Brother Yang, you mean Dong Li is the courier Sun Siyu met in the corridor?! It's impossible! Look at how impressive the young man is, he looks like a big shot in technology!"
Gao Jinyang was shocked. He pointed to one of the photos of Dong Li holding a trophy and said: "National Computer Programming Youth Champion, oh my god, what a gold content! The graduation salary of such a person is not as much as mine? I don't believe it!"
In Sun Siyu's words, Dong Li's salary was RMB 70,000 to RMB 80,000 a year when he entered society, which was incomparable with other fresh graduates.
If you major in computer science, you have to earn two to three hundred thousand a year, right?
"He has to ask himself."
Jiang Yang shrugged, placed his finger on Dong Li's temple in the photo, and said leisurely: "There is a mole here, do you see it?"