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William Castle ¡¤ 6

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    "We won't discuss this for the time being. There are still several peripheral scenes that have not been investigated. It is too early to characterize the case." Brother Ming will always give us a "shot in the arm" at critical moments.

    "Xiaolong, do you have any more at your place?"

    ¡°It¡¯s gone for now, Brother Ming.¡±

    ¡°Okay, let me introduce the autopsy.

    ¡°Both two people had depressed skull fractures on their heads, which were inferred to be caused by a small ¡®nipple hammer¡¯. This kind of hammer is easy to carry and easy to buy on the market without any specificity.

    "The fatal injuries of the two deceased people were all in the carotid artery, which was a sharp injury. Judging from the vertical and horizontal depth and width of the knife edge, the sharp instrument was very sharp and could kill with one knife. Straight knives with a blade length greater than 25 cm can cause such injuries.  trauma.

    ¡°There was also a small amount of blood spatter on the pillow of the master bedroom on the first floor. Analysis may have been caused by the suspect entering the room and hitting the two deceased persons on the head with a ¡®tipple hammer¡¯.

    ¡°Judging from the lack of obvious signs of resistance at the scene, the suspect should have knocked out the two deceased persons while they were sleeping, and then moved them into the bathtub to kill them.¡±

    "Director Leng, can I interrupt?" Brother Ming was about to continue, when A Le spoke.

    "What's wrong?"

    ¡°I just want to find out one question, when was the specific time the suspect committed the crime?¡±

    Brother Ming shook his head: "After the two deceased were killed, they were soaked in the bath. The decay of the corpse occurred in a special environment. If we infer based on the phenomenon of the corpse, there will be a big error. Therefore, this problem can only be solved after combining  Only through thorough investigation and interviews can we get a precise answer.¡±

    If it had been anyone else, Brother Ming would have gone crazy a long time ago. He hated people interrupting him the most. But what he didn't expect was that Brother Ming seemed to be particularly patient with A Le.

    "Director Leng, it's like this, because I have grasped a point in time, which may be helpful to your conclusion, so I interrupted you, I'm sorry."

    "What? Did you grasp a point in time?" To make sure I heard correctly, I asked again.

    "Well, I have nothing to do, I figured it out."

    "Okay, tell me!" From Ming Ge's serious expression, it is not difficult to see that if A Le can't explain why, Ming Ge may not be so easy to talk to next time.

    "It's like this. When you were investigating the scene, I went to the property management company to check the water meter at the crime scene. The suspect opened the faucet at the scene after committing the crime. This reminded me of what I did in school about 'discharging and storing water'.  Water's math problem."

    After saying that, A Le's expression suddenly became serious: "I checked and found that in the months before the incident, the domestic water supply in the villa was basically within a normal range, with an average of 9 cubic meters per month, which is 9,000  Water liters, calculated based on 30 days per month, the average flow rate of all water heaters in this villa is 12.5 liters per hour."

    "The faucet at the crime scene was 20 mm in size. I checked the relevant data from the Internet. According to the experimental results given by the manufacturer, the normal flow rate of this faucet after it is fully opened is 1,500 liters per hour. According to the description of the caller, he closed  When the faucet is turned on, the water valve is in a fully open state, so that I can take advantage of the flow rate parameters of the faucet.

    ¡°The total time from the last water meter reading at the property registration to the end of the incident when the faucet was turned off was 1960.25 hours.

    ¡°The difference between the water meter reading during the on-site survey and the last water meter reading was 249.41 cubic meters, which is 249,410 liters of water.

    "Next, we only need to do a little calculation to conclude that by multiplying the average flow rate of 12.5 liters per hour by the total time of 1960.25 hours, we can get an average water consumption, which is approximately 24503 liters. We use the total of 249410 liters  Subtracting the average water consumption of 24503 liters, we can get a value. This value is the excess water consumption. This value is approximately 224907 liters, which is the flow rate when the faucet is open. Next, we only need to use the flow rate of the faucet fully open per hour.  1500 liters, minus the average flow rate of domestic water of 12.5 liters per hour, we get a difference of 1487.5 liters per hour.

    "Finally, divide the extra flow rate of 224,907 liters by the extra speed of 1,487.5 liters per hour, and you can get the extra time, which is about 151.2 hours. This time is the total time the faucet is turned on. When converted into days, it is 6.3 days  , that is, 6 days and 7.2 hours. The time when the property management company turned off the faucet was 9:30 am. In other words, we already know that there are 9.5 more hours. Subtract 7.2 hours from 9.5 hours, and the result is  2.3 hours, that is, 2:18 a.m., so the result I gave is that the suspect should have opened the faucet at 2:18 a.m. 6 days ago, and the time of committing the crime was?It should be around this time.  "

    After Ah Le finished speaking, everyone present was quite shocked. None of us had thought that mathematical methods could also be used in on-site investigation. Moreover, there were almost no omissions in Ah Le¡¯s calculation method, and the results obtained were better than those of surveys and visits.  Too much precision.

    "I combined the autopsy and corpse decomposition to speculate, and concluded that it was about 7 days after death. Compared with this, Ale's data is more accurate." Ming Ge has always been known for his rigor. Now that he has approved it, we are even more  Not a trace of doubt.

    ¡°Senior brother A Le, I didn¡¯t expect you to be a top student!¡±

    "No matter where you are, being idle is also idle." Faced with Ye Qian's teasing, A Le scratched his head shyly.

    "Through Ale's calculations, the suspect committed the crime around 2:18 in the morning." Ming Ge's words made the atmosphere of the meeting tense again. "At night, a person's sleep state can be divided into four stages.  : Falling asleep, light sleep, deep sleep, extended deep sleep, at two o'clock in the morning, it is the third stage of human sleep, in the state of deep sleep. Once the sleeper enters the state of deep sleep, the muscle tension disappears, the muscles are fully relaxed, and the feeling  The function is further reduced and it is difficult to be awakened.

    ¡°There were blood stains on the pillow in the bedroom where the deceased rested. According to the current information, the suspect should have hit the two deceased on the head with a hammer while they were in deep sleep, so there were no obvious signs of resistance at the scene.

    "If the suspect is simply stealing, at this point in time, as long as he pays a little attention not to make a sound, he can succeed, but why would he kill?"

    ¡°If his subjective purpose was to kill, why didn¡¯t he kill the two of them while they were sleeping, and why did he bother to commit murder in the bath?  "

    "This" All of us looked embarrassed.

    "The two deceased were killed while they were sleeping. It is impossible for the suspect to have any verbal conflict with the deceased, but why was Ruan Yulin's tongue cut off again? What does this obvious act of venting anger mean?"

    The several questions Brother Ming asked one after another really made all of us a little confused.

    "Therefore, we cannot give an accurate characterization of the case until the problem is completely clarified. Next, there are still several important things that we need to solve."

    Brother Ming raised three fingers:

    "First, we assume that the behavior of venting anger is established. The main target of the suspect's venting anger is Ruan Yulin, and according to Ye Qian's feedback, Ruan Yulin does not often come to live with Shen Meng. If the suspect and Ruan Yulin have hatred, then  The suspect definitely needs to wait for Ruan to return to the villa before taking action. Based on this analysis, the suspect may have camped out beforehand. Next, we need to expand the scope of the on-site investigation to see if we can find such a squatting spot.

    "Second, the suspect took away a large amount of property. To transport these things out of the community, he will definitely need transportation. The crime scene is a completely closed community, and their special access cards must be used to enter the community. Foreign vehicles  Unless someone is brought in, no one is allowed to enter. When inspecting the scene, the property management of the community has reported that no outside vehicles have been registered within a month, so I have reason to suspect that the suspect may have stolen the deceased's car as a means of escape.  Tools, so the garage of the villa is the focus of our next investigation. As long as we can determine what kind of car the suspect is driving, it is also a shortcut for us to use the car to find the person.

    "Third, comprehensively investigate the social relations of the two deceased people to see if there are any contradictions. Ye Qian, leave this to your criminal police team."

    "clear!"

    "By the way, has Ruan Yulin's wife arrived?"

    "I guess it's almost done at this point!" Ye Qian raised her watch.

    "Xiaolong, you and Ye Qian go to the criminal police team and remove this person's mouth supply!"

    "no problem."

    "ThatDirector Leng."

    "What's the matter, Ale?"

    "Can I go too?"

    "Okay." (Remember the website address: www.hlnovel.com
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