Chapter 54 Chapter Fifty-Three

Gao Dong sat alone in the office thinking, if Zhang Yiang and the others did not omit any omissions in their investigation, that is, the murderer did not enter the unit building on the day of Hu Haiping's murder, then the murderer could only use the remote control device to make the stone slab fall. According to the resident on the opposite side of the unit building, he saw that the stone slabs were erected on the sixth floor. The slate is very heavy, and it takes a little effort to push the slab down.If it was a remote control, a small remote that wasn't strong enough to push the slate down, what would it be?

The scene was searched very carefully, and the only thing I found was a strange iron sheet in the corner outside the sixth floor. Could it be that the answer was really on the iron sheet? The criminal methods of the murderers in the Hu and Shao cases are unheard of, especially how the murderer in the Shao case made Shao Xiaobing commit suicide, so far no clues have been found. However, Gao Dong believed that, aside from the Wang Baoguo case, Hu Haiping and Shao Xiaobing, both top leaders, had encountered such bizarre crimes in a short period of time, and the methods had never been seen before. The murderer must be the same person.

Since he dared to make such a big case, and made the Shao Xiaobing case so unimaginable, it was inevitable that he would beat Hu Haiping to death with a slate, not by luck, but with full confidence. If Hu Hai was usually killed, the murderer was in the unit building and pushed down the stone slab with his hands, then he must have been standing on the rain shield at that time. The people in the unit building looked over, and it was impossible not to notice the man on the rainshield.So it's not possible.Moreover, it is difficult to determine the timing and strength of pushing the stone slab with hands, and there is no guarantee that it will hit Hu Haiping.

If the murderer was in the apartment building, instead of standing on the rain shield, he stood inside the window and knocked down the stone slab with something like a wooden stick, it would be impossible, because Hu Haiping walked closer to the apartment building. Recently, the murderer in the room on the sixth floor couldn't see him, so he couldn't judge when to push down the stone slab. The murderer was not in the unit building, but used a remote control device to control the stone slab to fall and smashed Hu to death, then all this is easy to explain.As long as the murderer calculates Hu Haiping's walking speed before returning home, and then calculates the time when the slab will fall to the ground, and determines a point, when Hu Haiping reaches this point, operate the remote control to make the slate fall, and Hu Haiping will be killed. .

But in the process of falling the upright stone slab, first do a turning motion, and then do a free fall.And according to what the university teacher said last time, if the murderer did not calculate the time of the flip movement, but calculated it as a free fall, the final error may cause Hu Haiping not to step into the half-meter-wide " dead zone". Calculus is involved in calculating the time required for the flipping motion. Previously, Gao Dong was only skeptical, but now judging the murderer’s courage and criminal ability based on Shao Xiaobing’s case, Gao Dong is almost certain that the murderer must have received a university education and remembered the knowledge of calculus in the university. , the identity may be a recent graduate from college, an engineer, or a school teacher.

It is not enough to just confirm the identity of the murderer. There are so many people, these three types of people can't be counted in a county, so it is difficult to investigate one by one. Regarding the Hu Haiping case, I still can't figure out the iron sheet and the remote control device. It takes strength to push down the stone slab, and the remote control device is not small, so what kind of device is it and where will it be placed? Was the device taken by the murderer after the fact? Impossible, Gao Dong denied this idea. Because the murderer painted glass glue on the fifth floor, the police mistakenly thought that the stone slab fell from the fifth floor. Behind the superfluous action must be to cover up the real evidence.What if the murderer could easily take away the device after committing a crime and let the police know that the stone slab fell from the sixth floor, wouldn't they still be unable to catch him?So the killer's device must still be upstairs.

The answer must be on the sixth floor, but there is only a strange iron sheet in the corner of the wall on the sixth floor. How did all this come true? Gao Dong exhaled, shaking his head in confusion. Judging from the investigation of Hu Haiping's case, the only clue Gao Dong has now is that the murderer is an intellectual and has a car.This is a necessary condition for the murderer's battery car to disappear on the road between the two surveillances—of course, the car may also be borrowed. But it is not enough just to know that one is an intellectual and should have a car. He returned his thoughts to Shao Xiaobing's case.

Undoubtedly, in the case of Hu Haiping, the murderer installed the stone slab and manipulated the slate to drop it.And the murderer in the Shao Xiaobing case obviously did a lot of things. After so much effort, there will always be clues left. Which thing will be the breakthrough? Let’s talk about the home first. There are traces of dragging in the house, but it is impossible to tell whether it was the murderer who dragged it, or Shao Xiaobing’s wife dragged it that day, but Gao Dong thinks it must be the murderer.The sofa was missing a cushion, and there were traces of multiple stabs with a dagger under one of the other cushions.In addition, it was Shao Cong who said that three gold bars were missing.This is a suspicious point, but if the murderer took the gold bars, he would not sell the gold bars directly in a short time. Even if the murderer lacked money, there was still cash in the safe, and he would not be able to tell if he took some.There is not enough manpower now, wait a while and then contact the gold shops in the surrounding counties and cities of each unit to ask if there is anyone coming to sell gold bars.

Afterwards, on the road in the middle of the night, Shao Xiaobing’s car had its headlights on and its sun visor turned down. According to the latest investigation report, not only the face of the driver could not be photographed by the surveillance in the community, but also all the surveillance along the road could not photograph his face. The face, indicating that the driver has been keeping his face back, so that the surveillance camera did not capture it.And Gao Dong compared the surveillance footage of Shao Xiaobing driving before. When he was driving, he usually sat upright, not lying back.Based on this, although the driver was wearing Shao Xiaobing's clothes, Gao Dong judged that the driver was the murderer.

Finally, the monitoring along the road showed that the car did not go to other places, but drove straight to the beach. After that, the car turned a few times on the beach and left many tire marks on the beach, but finally the car appeared on the one-kilometer road. remote village.The scene of Shao Xiaobing's suicide on the beach was left behind, and the scene was extremely well preserved, with very clear footprints. Another most suspicious point is that his wife disappeared out of thin air. Even though they sent police dogs and a large number of police forces to search around, they could not be found.

Gao Dong lay in the chair and pondered for a long while. It seemed that the crime location of the Shao Xiaobing case had changed several times, each of which was confusing, but the weirdest thing was the well-preserved suicide scene. The breakthrough should still be at the suicide scene. Gao Dong took out the file bag and took out all the high-definition photos taken at the scene, and carefully read them one by one from beginning to end. He had seen these photos countless times, and there was nothing new about them. However, hard work paid off, this time, he finally found a clue in the photo.