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Quick Sniper ¡¤ Five Theorems in Triangles

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    "What?" Ye Qian asked in disbelief.

    "Maybe you didn't pay attention to the situation at the scene. The vehicle driven by the deceased crashed into the mountain. If he was driving in a straight line and was shot in the process, then his car must have jumped down the cliff. From this point of view, it is not difficult to see.  It turns out that the deceased should have just turned the steering wheel when he was shot. In other words, he was shot and killed as soon as he appeared in the suspect's field of vision. The shooting time of the bullet can be ignored in a short distance.  "

    In addition, during the shooting process, the suspect must have been controlled within the effective range, otherwise he would not be sure to kill him. We now know that the approximate effective range of the gun used by the suspect is 50 meters, which is equivalent to knowing a search  range.

    "Search range?" Ye Qian was confused.

    I simply picked up the pen, drew a right triangle on the record book, and explained to her again: "Look, the road surface on site is very smooth, basically a straight line, so we can use the road surface as the base of the triangle, and  We assume that the hypotenuse of the triangle is the effective shooting distance of 50 meters. We now know that the shooting angle between the suspect and the ground is 35 degrees, a right-angled triangle, knowing the length of one side and the degree of an angle, then use Pythagorean  Theorem and Sine Theorem set out the equations, and the lengths of the other bases of this triangle can be easily found.¡±

    When I said this, I looked up at Ye Qian who looked very serious, then wrote two numbers on the triangle in the record book and explained:

    "I assume you will understand the two numbers. For example, we calculate that the height of this triangle is 10 meters and the base is 50 meters. Then we need to walk 50 meters forward along the road on site, and then climb to the ground  At a height of 10 meters, that coordinate is basically the suspect's shooting point. Do you understand now?" After saying that, I wiped the sweat from my forehead.

    Just when I was complacent about my erudition, Ye Qian¡¯s words immediately made my blood spurt out.

    "I took liberal arts because I'm not good at math! You've been talking for a long time and I still don't understand."

    Looking at her harmless expression, the muscles at the corners of my mouth twitched hard, and a few words popped out from between my teeth:

    "you win!"

    "Although I am not good at writing, I will definitely knock you down because of my martial arts skills!" Ye Qian slapped me hard on the back to show her dissatisfaction with me.

    "Okay, okay, I was wrong, let's hand over the gun quickly! Brother Ming and the others are still waiting for us to have a meeting!" I urged.

    "Okay!" Ye Qian ejected the magazine, turned off the gun's safety, picked up the remaining bullets and walked out the door.

    "Brother, the experiment is done!" I walked to the next room and said to him politely.

    "Oh, how many bullets did you shoot in total? Let me register it!" Senior Brother stood up and asked.

    "Just one shot!" I stretched out a finger sheepishly.

    "What? You two went in for such a long time and only got one shot?" Senior Brother's eyes widened, a little surprised.

    "The main reason is that her shooting skills are so good! One shot is enough!" I pointed at Ye Qian beside me.

    Senior brother looked at Ye Qian up and down with very surprised eyes.

    "Are you leaving yet? What time is it?" Ye Qian urged.

    "Oh, let's go." I waved goodbye to my senior brother and followed Ye Qian towards the unit.

    As soon as Brother Ming saw the two of us, he hurriedly called us to the conference room for a meeting.  At this time, Lao Xian and Fat Lei were already sitting on the chairs in the conference room. From the pile of cigarette butts in the ashtray in front of them, it was not difficult to see that they had been waiting for a long time.

    ¡°Xiaolong and Ye Qian are back, let¡¯s get started.¡± Brother Ming opened his notebook and said.

    "Guoxian, please tell me first."

    Lao Xian shook his head and replied: "All the biological samples I collected at the scene were left by the deceased. The suspect has never touched the vehicle at all, so I have no clues at all."

    "Jiao Lei, where are you?" Brother Ming looked away from Lao Xian.

    Fat Lei took a puff from his cigarette and said, "It's good that there are several high-definition cameras installed on this winding mountain road, but these cameras are all installed at the bottom of the mountain, and there are no similar devices around the crime scene.  From this point of view, I can analyze that the suspect must have stepped on the spot beforehand, otherwise he would not have chosen to commit the crime on the third circle of road."

    "Yeah!" I also fully agree with his point of view.

    Fat Lei looked at the notebook again and said: "I measured the distance between the two cameras.? distance, combined with the time interval between the appearance of the vehicle on the two surveillance screens, it was calculated that the deceased's speed that night had reached at least 90 kilometers per hour. When converted into seconds, it is 25 meters per second. Looking at it this way, his speed was at least 90 kilometers per hour.  The speed is fast enough.  "

    When Fat Lei mentioned the speed of the car, I added on the side: "Based on the angle of the collision of the vehicles at the scene, the suspect should have fired the gun while the deceased was turning. The acceleration time of the Audi A8 sedan from zero to 100 kilometers is only 8 seconds.  Left or right, if he goes at this speed, the third bend on the mountain can be completed in a few seconds at most. In other words, the suspect must complete the process from raising the gun and shooting to killing the deceased in an instant, and there must be no one moment.  pause."

    "The suspect shot the deceased this time. It was obviously a sneak attack. The gun would make a loud noise during the shooting. If it failed this time, the deceased would definitely be alert. The suspect dared to kill the victim in this way.  It is enough to show that he is most confident in this way, so he can fire this shot with confidence that he will win. From this, it is not difficult to see that the suspect has a strong psychological quality and has received systematic firearms training."

    ¡°In peacetime, there are basically three types of people who can receive professional firearms training: police, soldiers and professional killers.¡±

    "Well, the analysis makes sense." Fat Lei agreed with me very much.

    "Jiao Lei, do you have anything else to say?" Brother Ming asked.

    "Gone!"

    "Okay, Xiaolong, go on." Brother Ming moved his eyes to me.

    "I just went to the city bureau with Ye Qian to do an experiment. We basically determined the suspect's shooting angle. From this, I deduced the approximate range of the suspect's shooting point. In addition, the fingerprints on the car have basically been  Ruled out. So my idea is to find the suspect's shooting spot after the meeting, nothing else." I closed my notebook and replied.

    "That's great. If you can find the spit or cigarette butts where the suspect shot, it would be easy!" Lao Xian said excitedly.

    "As for the shooting point, we will rush there when it gets a little brighter. The outdoor light is too dark now, which is not conducive to investigation. There are colleagues from the police station at the scene, and the suspect will not destroy it!" Brother Ming took a puff of cigarette and said.

    "Yeah!" I nodded.

    With that said, Brother Ming put out the butt of his cigarette and said, "Let me introduce the general situation of this case to you."

    Hearing this, we all opened our notebooks and picked up pens to record.

    Brother Ming looked around to make sure we were ready, and then said: "Let me talk about the autopsy first. The deceased died from a bullet in the head. There is no objection to this. I found in the bullet hole in the head of the deceased,  A circle of indentations on the steering wheel were found, and from this we can analyze the suspect's crime process. Basically, it is similar to what everyone thought. When the deceased turned onto the third winding mountain road, the suspect shot the deceased, and then the car  He lost control and hit a mountain. At this time, the victim's head hit the steering wheel due to inertia, which formed such a mark. There is no doubt about this. In the end, the airbag exploded, and the situation at the scene occurred.  .¡±

    ????????????????????????????????????????????????????????????????????????????????? Ming Ge lit up another cigarette and took a drag, then said: "The autopsy does not provide any valuable clues except to determine the cause of death of the deceased. Next, I will tell you about the information fed back by the criminal police team."

    "The deceased's name is Wen Xuelin, male, 52 years old, from Minzhou City, Jijiang Province. His current identity is the president of the Minzhou Chamber of Commerce in Yunxi City. He mainly engages in the fur business in our city. According to investigations, he has hundreds of millions of yuan in wealth  assets, and his wife and children are all in Minzhou."

    "He once had two lovers in our Yunxi City. One of them is no longer with him. The other lover he is still dating recently is Jiang Xue, 25 years old and unemployed. Wen Xuelin has a very strong personality and is doing business.  I offended many people in the process, and we cannot rule out the possibility of harm from enemies."

    "According to this, Wen Xuelin's current lover Jiang Xue can basically be ruled out of suspicion. After all, she was killed and her financial resources were cut off." I added.

    "Not only Jiang Xue, but also the deceased's last lover can basically be ruled out, because according to the investigation, the deceased's last lover defrauded him of two million and left long ago. She had no motive for committing the crime." Ming Ming.  Brother replied.

    "Brother Ming, did the criminal police team investigate why the deceased appeared on the winding mountain road on the night of the incident?" I asked, biting the tip of my pen.

    "The deceased was a senior VIP of the Xiaoyao Pavilion Club. He would go to this club at a fixed time every week for entertainment."

    "The suspect can figure out this pattern of the deceased, which means he has a good understanding of his living habits, and it is more likely that an acquaintance committed the crime." I deduced.

    "This Wen Xuelin is so rich, the people who are familiar with him must also be rich, and there is no father or son in the business world. If the hatred between the deceased and someone is obvious, it's okay to say, I'm afraid he inadvertently  If you offend someone, find a killer to kill him, that will be troublesome!" Ye Qian analyzed with some frustration.

    "Indeed, based on the evidence we have now, there is indeed no breakthrough. When daybreak, we will look for the shooting point and see if we can find clues to solve the case there." Brother Ming wiped his cheek with some disappointment and said.  (Remember the website address: www.hlnovel.com)??This Wen Xuelin was so rich, everyone who knew him must be rich too, and there was no father or son in the business world. If the hatred between the deceased and someone was obvious, it would be okay to say that he might not have inadvertently  If you offend someone, they find a killer to kill him. That will be troublesome!  "Ye Qian analyzed with some frustration.

    "Indeed, based on the evidence we have now, there is indeed no breakthrough. When daybreak, we will look for the shooting point and see if we can find clues to solve the case there." Brother Ming wiped his cheek with some disappointment and said.  (Remember the website address: www.hlnovel.com
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