One night, Li Zhang's body was on display on the roof of the building, and Liu Mingxuan, who was on night duty with him, thought that he had gone to desert and slept somewhere. Although he also sympathized with Li Zhang www.biquge.info's pressure to support his family, he worked two jobs, and was often so sleepy that he could fall asleep standing up, he looked really pitiful, so he always indulged Li Zhang, intentionally or unintentionally, so that he could rest for a while.

But this meeting is also measured, okay? In the past, Li Zhang was still very conscious, and he would get up and go around after sleeping for an hour, but now it's good, he can't see people all day long, and it seems that he takes sleeping at work as a habit, rather than Liu Mingxuan's kindness, and sometimes he calls Li Zhang, and he will complain. It's really a fight against rice, and I don't have to get used to a stinky problem.

Twelve o'clock, one o'clock, three o'clock, until four o'clock, Li Zhang never appeared, Liu Mingxuan was so sleepy that his eyelids were fighting, it was really uncomfortable, so he left his post and wanted to find someone, replace him for a while, so that he could rest and rest.

It's strange, Li Zhang usually doesn't see anyone in the place where he usually sleeps, and there are no several places where he can avoid surveillance and allow people to lie down, where did he go? Looking for someone all the way up, Liu Mingxuan felt more and more puzzled. If you go up to the roof, it's dirty and cold, and who wouldn't want to run up and spend the night? If he hadn't been guarding the door and hadn't seen Li Zhang leave, he would have wondered if he had sneaked away and skipped work.

There was no light on the roof of the building, at four o'clock, the sun had not yet come out, the sky was just bright, and nothing could be seen clearly, Liu Mingxuan could only step out of the door carefully with his memory.

Then he felt a soft thing under his feet, a large range, definitely not a mouse, he took out his mobile phone, and shone it at the soft object by the light.

A scream broke the silence before dawn, but no one heard it, there were only two of them on duty in the entire building, Liu Mingxuan was screaming, and Li Zhang was lying on the ground and had already lost signs of life. Liu Mingxuan screamed a few times, feeling that the gall that had just been frightened was slowly fighting back a little, he hurriedly climbed back to the stairwell with his hands and feet, and dialed 110 tremblingly.

There have been three bloody cases in a small city, and the dead are all in a miserable state, and the police have been unable to catch the murderer for a long time, such rumors have spread at the speed of light throughout the city, and the direct consequence is that in reality, the streets are deserted at night as if the city has been abandoned, and there is a lot of scolding on the Internet, saying that the police are incompetent, and they are all rice buckets that only eat and do not work.

No one wants to put the hat of waste on their heads, so the three teams follow up on the three cases, and they are full of energy ********to solve the case and prove their strength.

The interval between the three cases was short, and the murderer tried his best to destroy the body of the deceased when committing the crime, especially in the first and third cases, skinning people alive was not a deadly act in itself, and the significance of this bloody method was to make the victim suffer a lot before death, but the three deceased were found to have sleeping pills in their bodies, and the forensic doctor concluded that the three deceased should have been in a coma before they died, and they were powerless to resist no matter what the murderer did to them. In the end, the murderers were cruel or merciful, and why did they still leave them unaware while torturing them? It's not scientific.

Therefore, when someone suggested that the modus operandi of the three cases was similar and whether the cases could be combined for investigation, the higher-level leaders finally rejected this suggestion after repeated meetings and studies. After all, the identities and backgrounds of the three deceased did not intersect, and they did not know each other, just because they had all taken sleeping pills before they died, it is still a bit far-fetched to merge the cases. Whether the face of the deceased in the second case has been skinned is now impossible to test, the public security bureau has stood on the cusp, these three cases can not be wrong in handling the case, it is better to be careful, otherwise in the end it will not be able to solve the case, and then it will be determined that the case is handled in the wrong direction, and the case is too hasty, all of them have to eat and walk around.

The merger of the case stopped, the three parts of the people went their own way, and the investigation was dark, especially in the third case, the location of the victim's death was the only one of the three rare cases where the first scene occurred, that is to say, the murderer must have appeared here and stayed long enough, the building is full of surveillance, it is not difficult to find some clues, this case, relatively speaking, the time of the crime is the most recent, the most clues, should be the easiest to solve the case.

However, when the police searched the four hours of surveillance before and after the time period of the crime, they found nothing. Everyone who appeared on the surveillance screen was well documented, and none of them were suspicious, but the murderer was not even photographed by hair.

But the problem is that there are only three exits in the Liye Building, where the crime occurred, which can lead to the outside world, and Liu Mingxuan has been guarding the main entrance, and he has not seen anyone enter or leave since all the staff in the building got off work at 9 o'clock in the evening; There is a high-definition camera hanging at the back door, 360 degrees without dead ends, and even more ghosts have not been photographed, because the back door is not far from the stinky ditch, and it is necessary to go around a big circle to get on the road or to the surface parking lot of the building, no one will be full to support the long way from here, except that the murderer may have deliberately chosen to escape from the scene here because of the inaccessibility here; There is also an exit to the underground parking lot, but the underground parking lot of the building is closed at night, not to mention people, even a large mouse can't escape.

Isn't that the hell? The police even suspected that it was Liu Mingxuan who shouted to arrest the thief and killed Li Zhang. Because when visiting the staff in the building, many people reported that Liu Mingxuan's relationship with Li Zhang was not very good, and he often quarreled, and once he fought in front of many people, and more than a dozen people couldn't persuade him, Liu Mingxuan threatened to kill Li Zhang at that time, but Li Zhang, bowed his head and was silent, and didn't say anything, and the two didn't talk much since that time, and then Liu Mingxuan kept applying for a transfer and didn't want to partner with Li Zhang, but the leader never regarded the contradiction between the two of them as a major matterAfter the quarrel, don't contact in private, the work has to be done, otherwise you have to apply for a job transfer with someone who has a conflict today, and tomorrow he has a conflict with others and can't do it, how to maintain the order of the company, the leaders don't have to do anything else all day long, just think about how to reconcile the contradictions of subordinates, and they are not all chaotic.

So after Li Zhang's death, although everyone didn't say much on the surface, they all whispered behind their backs, whether Liu Mingxuan was really ruthless.

Liu Mingxuan feels that he is more wronged than Dou E, it is almost snowing in June outside, yes, he usually has a little temper, he can't control himself when he gets angry all his life, and his popularity in the company is not good, especially when he just fought with Li Zhangjie not long ago, but that incident is really not his fault, he is just because he is about to let out a cruel word, how can he be suspected of being a murderer? Don't look at the surface Li Zhang is very concerned about the work of the night security guard of the building, often show himself in front of the leader, and be disciplined and capable, in fact, it is not wrong to show himself, no one wants to be a small security guard for the rest of his life, if there is a chance to climb up, he still has to climb, but Li Zhang's mistake is that he should not treat others as stepping stones, his strong desire to express himself is based on stepping others into the mud. Behind his back, he made a small report to the leader, saying that others were not doing well at work, and when he turned around, Liu Mingxuan was firmly scolded by his boss.

But what is the truth of the matter? Although he, Liu Mingxuan, is a little lazy, and on the surface, his kung fu is not in place, but the person who stares at the dawn every night and often can't close his eyes for a night is always him, what about Li Zhang? When all the people in the building are gone, and no one will know his true face, he will find a place to sleep, just because he has another job to do, and he is a hero? The problem is that in Liu Mingxuan's opinion, no matter how much money Li Zhang earns in another job, he doesn't have Liu Mingxuan's share, so why do you have to get used to him? Where in this world is there a good thing that always takes advantage of the advantage and does not suffer losses, the two naturally have a lot of dirty, Liu Mingxuan regrets it very much, because he was soft-hearted for a while, he let Li Zhang go to sleep, which brought such serious consequences. Liu Mingxuan is a straight-hearted person, he can't play those twists and turns, he can't play the trick of slapping horses, and the relationship with the leader is not as good as Li Zhang's, but when he encounters this kind of thing, he naturally has to suffer dumb losses, but it is definitely not in line with his character to suffer losses so quietly. This is the origin of which fight, in the final analysis, Li Zhang is the one who really provokes trouble, and he is not wronged at all when he is beaten.

The relationship between the two has been very bad since then, and Liu Mingxuan has always applied to change jobs and no longer partner with Li Zhang, but he never thought of wanting Li Zhang to die, this little contradiction between the two is simply not worth mentioning in front of life and death, but the irony is that Li Zhang died, died under his nose, and the angry words he said casually became a shackle that could not be taken off from his neck. If he had known that he would be interrogated by the police as a suspect today, Liu Mingxuan would have been so depressed that he would have said something he shouldn't have said.

What rescued Liu Mingxuan's suspected situation was the Internet police division of the Public Security Bureau. In fact, it is not the turn of the Internet police to do the job of watching surveillance videos, after all, the video can be seen with the naked eye, and what professional analysis is needed. However, this time, after ruling out the possibility that the murderer had been hiding inside the building and then quietly leaving, they had to focus their suspicious eyes on these surveillance videos.

It is absolutely impossible for the murderer to disappear out of thin air, adhere to this principle, the only thing that can be suspected is the surveillance video, so many cameras in the building are connected to a background processor, and then stored in the server, automatically cleaned up every once in a while, it seems to be a very complete and strictly forbidden system, but there are great security risks. The whole set of security equipment in the building, the administrator login password, no one has ever changed it, it is the original password admin, to crack this system, you don't need to have a very high network hacker common sense, a little bit of hacker training can do it to hack into the system without being discovered. After hacking into a surveillance system, don't be too simple if you want to do something like tampering with the video.

The murderer obviously did not expect that the Internet police would analyze these videos frame by frame, and the massive processing workload could easily drown out small evidence. But he has been studying under Rong Gan for nearly 15 years, and he has developed a pair of sharp eyes, and he knows very well where he needs to find evidence, where all hackers will not pay too much attention.

Sure enough, he found that the surveillance video at the back door of the building, on the video taken during the time period of the crime, there was a very unreasonable place: the door was not opened, no one entered or exited, but in the shadow in the lower left corner of the video, like a haunting, a figure suddenly appeared, and then disappeared two seconds later.

The teacher calmly watched this video no less than twenty times, and finally determined that this tampered video should be from the hands of someone who has been trained by hackers, except for the unreasonable shadow of two seconds in the inconspicuous corner, there is no other inconsistency in the whole video, if it is not for the teacher calmly experienced, know where to find such a loophole, a small flaw is easy to ignore.

The other party is a master, and he will leave his tail this time because he didn't expect that there will also be computer masters in the police, and he has painstakingly analyzed the video carefully, so that he can catch his fox tail.

Liu Mingxuan naturally did not have such qualities, and the police turned his place of residence upside down, and in addition to digging out a large number of ********** from the computer, they also found several worms. If Liu Mingxuan is really a master of computer hacking, then his camouflage skills are also superb that the police have never seen.

Disguised as an idiot who doesn't know anything about computers, Shi calmly believes that no computer hacker would do that. These people, extremely proud, super self-esteem, fierce competition between each other, absolutely no one will obey anyone's group of high-IQ talents, but their high IQ is not used on the right path, but is tempted to embark on the road of crime. People like them, who value their self-esteem and honor as their lives, or more than life, will deliberately disguise themselves as computer idiots who don't know anything, and if other hackers know about it, it will be enough to make him disappear from the dark web world. It's something they disdain and don't be ashamed to do.

Therefore, Liu Mingxuan's last suspicion was also ruled out, and the police turned to investigate Li Zhang's social relations. They can't understand how such a little person at the bottom of society, who came out to beg for a living before graduating from junior high school, except for watching movies and chatting QQ, Li Zhang, who did not show a special talent in computers, could provoke hackers, so that the Wannian otaku came out of front of the computer screen and carefully designed this murder. (To be continued.) )