More than two months have passed since the case of Wang Zhongliang and Ye Guangli, but the detective captain Liu Xiangshan has never given up.

For him, both cases have deep hidden suspicions, especially the mysterious disappearance of Wang Zhongliang. However, he still has no eyebrows about these hidden clues.

Liu Xiangshan carefully sorted out the facts of the two cases and decided to focus on Ye Guangli's case first, and the breakthrough was the surveillance in the corridor outside Ye Guangli's office.

When he handed over the copied surveillance file to the technical section, he gave a very simple reply: the surveillance file was blank.

Later, he asked the personnel in charge of security at the Aerospace Institute to learn that half an hour before and after Ye Guangli's death, the monitoring system failed.

For such a reply, Liu Xiangshan obviously didn't believe it, this is too coincidental!

He then brought all the monitoring equipment back to the bureau for a comprehensive inspection by the technical section.

At this time, so long has passed since the case, and the security department of the space institute does not agree to do so. Later, after consultation between the director of the bureau and Zhang Tianlin, and the investigation department would provide a set of temporary monitoring hosts, the aerospace institute agreed to cooperate.

Through data restoration, the problem was discovered.

There was no problem with the host of the device, but an anomaly was found in the storage traces of the hard drive.

If there is a blank monitoring file, it means that the monitoring system has not worked during this period. Judging from the storage traces, an extremely strong current was generated at the moment when the monitoring was disconnected, and it was because of this current that the system was forced to disconnect.

However, the blame is on this current, because it is much stronger than the instantaneous current generated by a normal power failure!

Upon further analysis, the current came from an interfering device.

This is easy to explain, that is to say, within half an hour before and after Ye Guangli's death, the disconnection of the monitoring system was caused by man.

Obviously, this person is likely to be the murderer of Ye Guangli.

"Sure enough, it's murder!" Liu Xiangshan was ecstatic.

But the next investigation was even more difficult, not to mention where to find the suspect, just such a small jamming device made him unable to start.

Fortunately, the technical staff was abundant, and according to the intensity of the interference current and other relevant parameters, five brands of jammers were quickly identified, which greatly reduced the scope of the investigation.

Even so, there is no better way but to conduct a carpet search.

After Liu Xiangshan's repeated applications, the director Pei Qingcai agreed to allocate half of the police force in the police station to him for deployment.

Liu Xiangshan first locked the scope of the investigation within a five-kilometer radius of the Aerospace Institute, and secretly investigated the places where various electronic equipment were sold, mainly within a week before the crime.

However, progress has been slow due to the length of time and lack of staff.

On this day, Liu Xiangshan watched the surveillance video again, but still didn't gain anything, so he came to the Aerospace Institute, ready to talk to Zhang Tianlin again.

Seeing Liu Xiangshan, Zhang Tianlin seemed to be quite surprised, and hurriedly let him into the office.

"Captain Liu is here this time, is it because there has been progress in the case?" Zhang Tianlin asked with concern.

"Well, about Professor Ye's case. To be honest, there hasn't been much progress yet, and I'm having a mess right now, so I'd like to talk to you again. Liu Xiangshan said straight to the point.

"Okay, I just want to know about the case, so wait a minute." Zhang Tianlin said and took off the white coat on his body.

Liu Xiangshan saw the words "Biological Institute" clearly printed on the back of his coat, and couldn't help but point and ask, "Who are you?" ”

"Oh, what a time for you." Zhang Tianlin had already sat in the chair, "I just came from the Institute of Biology, and the laboratory has been busy recently, and I even forgot to change my coat." ”

"You're really busy, and it's because of people like you that you have brought about the progress of science and technology." Liu Xiangshan praised sincerely.

"Aha, this hat is too tall for me to bear." Zhang Tianlin said modestly, "Captain Liu, what do you need to know?" ”

Liu Xiangshan moved his body, sat up straight, and then whispered: "Dean Zhang, in our recent investigation, it has been revealed that Ye Guangli may have been murdered. ”

"What!" Zhang Tianlin was taken aback, and almost jumped up from his chair, "This, how is this possible?" ”

"Don't worry, listen to me slowly."

Then, Liu Xiangshan roughly talked about his first discovery.

"You mean that someone deliberately sabotaged the surveillance system, and then went into Ye Guangli's office and killed him?" Zhang Tianlin asked uneasily, still unable to believe it in his heart.

"That's kind of the logic."

"But I remember that Ye Guangli had no external injuries on his body, and your autopsy report also said that he died of a sudden illness."

"Sudden cerebral infarction." Liu Xiangshan said.

"Then how can it be murdered, I don't understand......" Zhang Tianlin said puzzled.

"According to our analysis, the murderer first used a jammer to interfere with the monitoring system of the Aerospace Institute, and then came to Ye Guangli's office. The use of some special means triggered his cerebral infarction, just like interfering with the monitoring system. It was only after he left Professor Yip's office that the interference of the surveillance system was removed. Liu Xiangshan patiently explained.

"This—This is too unbelievable!"

"However, no definite evidence has been found yet, and these are just my inferences."

"It took half an hour to disarm ......"

Zhang Tianlin muttered in his mouth, and suddenly exclaimed: "You mean that the murderer is in the Aerospace Institute!" ”

Liu Xiangshan nodded: "Maybe the murderer didn't leave immediately after he succeeded, but stayed in the aerospace academy, or was nearby." ”

Zhang Tianlin was shocked after hearing this, and couldn't believe that the murderer was from the Aerospace Institute.

"But what is trickier now is that the surveillance system was disrupted for almost an hour, which is the critical time to find the suspect. After this time, it is very difficult to find suspects. Liu Xiangshan said helplessly, "So I need to trouble you to think about it carefully, the reason why Ye Guangli may be murdered......

Hearing his words, Zhang Tianlin was a little stunned and looked at him puzzled.

"Don't get me wrong, I mean that with your observation, a person of Ye Guangli's status is most likely to offend someone in the Aerospace Academy." Liu Xiangshan explained again.

Zhang Tianlin thought for a while, and said slowly: "In the Aerospace Academy, apart from me, the vice president, the most famous person is Ye Guangli. It is very likely to offend some people because of their status and fame. However, this kind of thing leads to discord in the relationship at most, and does not lead to the level of murder. ”

"It's really hard to say!" After speaking, Zhang Tianlin sighed again.

Liu Xiangshan nodded: "Who usually has more contact with Ye Guangli?" ”

"He only has two places to go, the Space Academy and the Military Academy." Zhang Tianlin thought for a while and said, "If you want to say that the people you have the most contact with, are his students." Most are also associate professors, and some are researchers. ”

"Students?" Liu Xiangshan thought thoughtfully, as if he had found the crux of the problem.

"Can you provide a list of all his students? We need to talk about it one by one. ”

"Of course, wait a minute." After speaking, Zhang Tianlin dialed a phone number, as if it was the personnel department.