A burst of hurried footsteps came into his ears, Zhang Lei came down the stairs with a SLR, watched Xiao Ran staring at the washstand, and couldn't help asking, "What are you looking at?"

"Did you shoot here?" Xiao Ran pointed to the toiletries on the storage board.

"I don't know, I've been upstairs. Zhang Lei was stunned when he heard this, walked over and raised the camera to take a few photos, and asked suspiciously: "Is there any problem?"

"It should be one cup missing. Xiao Ran said with a frown.

"How do you know that there was a cup here?—— or maybe it was hairspray or something, and I lost it when I ran out recently. ”

Zhang Lei looked at the circle of water stains and didn't think much about it, after all, everyone's current general view on this case is still to seek revenge or for money because of contradictions, saying that the murderer has always lived in Dong Haonan's house, which is inevitably a bit brain-open.

After all, if the murderer has been living in Dong Haonan's house, going in and out on weekdays, even if the relationship between the surrounding people and Dong Haonan's family is not good, they should always have some impressions.

Xiao Ran nodded, did not make a judgment, said that he had not finished reading the scene, and hurriedly drew conclusions through a storage board, which was a bit arbitrary.

"What's going on upstairs?" Xiao Ran asked casually.

Zhang Lei organized the language and said: "The third floor is only half a floor, there is a small machine for processing, and a few dilapidated tables and chairs, which are messy. There are two bedrooms on the second floor, one is a guest bedroom, and there are no occupants. The other room has a computer, and some packages that have not had time to be sent out after packaging, which should be a workshop for taking orders online, and there are not many things in the living room, with a set of old sofas and some finished crafts. ”

"I'll go up and have a look. Xiao Ran pointed upstairs.

"Okay, then I'm out. Zhang Lei nodded slightly, and walked out of the stairwell quickly with the camera.

Xiao Ran went up to the third floor first.

It is said to be the third floor, but in fact it should be two and a half floors, and there is a small machine for processing, next to which there are hacksaws, hammers, chisels and other tools, scattered in the thick processing debris.

It is not difficult to see that Dong Haonan and his wife are not only disgusting outside, but also very pickled at home, and they are unwilling to spend some time cleaning even if there is such a thick layer of wood chips on the ground.

Xiao Ran kicked the sawdust on the ground, revealing the cement floor below, and there was nothing new to discover.

After turning around twice on the third floor, Xiao Ran went down to the second floor, facing the room at the top of the stairs, where the captain Shao Yong and He Xiaoli were looking at the computer screen in the room.

Xiao Ran walked over and stood at the door and looked at it, it turned out that he was looking at the traces of use on the computer.

Guo Ran and others next to him were holding ultraviolet lamps to sweep the packages that had not yet had time to be sent out one by one, and once they found that the packages had palm prints and fingerprints on them, they put them in the physical evidence bag and prepared to take them back to the technical center for extraction.

"The usage records are all in the browser and the PC version of the micro chat, but there are VPN files installed on the computer, and there are traces of use over the wall yesterday. As for whether the account that has been logged in on WeChat chat is the murderer, this needs to be brought back to a network detective for inspection. The technician sitting in front of the computer said to Shao Yong and He Xiaoli.

When Xiao Ran heard this, he immediately asked, "Did the murderer use this computer?"

He Xiaoli said uncertainly: "There are obvious traces of cleaning on the desktop and keyboard, I don't know if Dong Haonan's family wiped it, or the murderer used the computer before and after the crime, and then cleaned it up." ”

Xiao Ran leaned over and took a closer look at the mechanical keyboard, and sure enough, it was clean, but the few blurred keys on it showed that the keyboard had been used for a long time.

But through the various signs upstairs and downstairs, it can be seen that Dong Haonan's family is very bad, and they don't clean up the housework, but they specialize in cleaning this keyboard, is it possible?

And the handwriting of several keys on this keyboard has been worn off, and it has taken so long, with the laziness of Dong Haonan's family, this keyboard should be very dirty.

But now the keyboard has been rinsed very cleanly, and the dust and debris in the gap under the keys have also been cleaned up, which is obviously not done by Dong Haonan and his wife, and it is likely that the murderer did it.

If the murderer used the computer at the time of the crime, even if he was afraid of leaving fingerprints on the keyboard, he could just wipe the surface of the keyboard.

Is it necessary to put a lot of effort into cleaning a piece of keyboard during such a stressful time?

- Unless, like the vanishing cup downstairs, the murderer had used this computer for a long time, and there were too many traces of his life around this keyboard.

Xiao Ran thought of the mechanical keyboard in his residence.

Sometimes when I eat in front of the keyboard, all kinds of soup will splash into the keys, and the hair that usually falls out can't be knocked out when I drill in the keyboard, and I must wash it from time to time to keep it clean.

So in this keyboard, are there any traces of the murderer's hair and other life before?—— if so, is the murderer temporarily living in Dong Haonan's house, or is it a helper recruited by the husband and wife?

Xiao Ran looked at the package that was packed into the physical evidence belt again, if the murderer had worked at Dong Haonan's house, the package was likely to have the murderer's fingerprints on it.

"What do you want, so devoted? What do the people outside say?" Shao Yong pushed Xiao Ran's shoulder.

"Oh, looking to see if there's anything left in the keyboard. ”

Xiao Ran suddenly came back to his senses and hurriedly said, "The crowd outside ...... The outside masses have a very bad evaluation of Dong Haonan's family, and the couple themselves are some scoundrels, and they are very spoiled by their children, and often have conflicts with others because of children's problems. ”

After briefly talking about the evaluation of Dong Haonan's family by the outside people, He Xiaoli hugged her arms and shook her head: "This family is too bad to behave in the world. ”

"There is a high probability that it is because of the child, or the conflict between the couple in their usual life, and it is unlikely that the murderer killed with passion after being broken because of lust and wealth. ”

Shao Yong said, and looked at the keyboard that was put away by the technician along with the host, "It may also be a killer hired by someone who used the computer to complete the transaction after the killing." ”

"Killer?" He Xiaoli sneered: "Lao Shao, have you watched too many police movies recently, what kind of killer is so brain-pumping, he has a life to make money and not a life to spend!"

"Hey, what kind of police movie do I watch? We work every day, isn't it just a police movie when we record it, and it has to be more exciting than a TV series!"

Shao Yong pouted and smiled, and then said with a straight face: "But it's not impossible, Dong Haonan's family has offended so many people, if someone wants to hire someone to kill them, it just so happens that someone doesn't want to live anymore, and if they take the job, they can leave an extra amount of money for their family." We've encountered it before. ”

"Yes. ”

He Xiaoli nodded, and then complained a little helplessly: "But you say, can't this Dong Haonan family have a good life, you have to do this, offend so many people, we can list a few pages of major suspects now!"

"This is the ...... Xiao Ran, there is a saying on the Internet, if you don't do it, you won't die, right?" asked Shao Yong.

Xiao Ran pursed his lips and smiled, "Yes, test ...... on the verge of death"