Serious Crime Unit 1

Chapter 1213 Unknown Cause of Death (10)
"This...if this is the case...even if a hacker hacks into the chip of the watch, it will be useless, because our battery capacity is relatively small, so it will not be fatal...unless...unless the hacker modifies the watch and increases the battery capacity, but , This is difficult to do, because the watch is worn on the orchestral hand and he has never taken it off." Shi Qian found Lu Yingying's idea incredible.

"Assuming the watch was modified, could a tiny amount of the battery cause cardiac paralysis in the orchestra?"

"If a trace amount of current passes through the orchestra's wrist, the current will flow to the orchestra's cervical nerves, and then flow to the heart, which will cause orchestra's heart paralysis, difficulty breathing, or even fainting. However, if a trace amount of current passes through the orchestra's arm, he should You can feel it."

"If the orchestra is playing an exciting game, can he feel a tiny amount of electricity?"

"In this case, it's possible that he couldn't feel it because his attention was drawn to the game. Even if he could feel it, it would be very slight, like an itchy skin allergy."

"Please help us check the parts inside the watch to see if it has been modified." Lu Yingying took out the watch and handed it to Shi Qian. She continued, "Don't lie to us. If you don't tell the truth, we will Ask an expert to check the watch. In that case, the consequences for you will be very serious, and we can treat you as an accomplice." Lu Yingying said to him coldly.

"Of course I know, don't worry, I will never deceive you." He put on his gloves, took the watch, took out the tools, took it apart and looked at it. When he saw it, he was extremely shocked, and then fell into deep thought. , he was speechless.

Then he said he would use a chip tester to test the chip.The chip detector is a tool for detecting chips. Enter the model number of the chip to be detected through the keyboard, and then press the OK key, and the system can detect the chip.The display module can display the chip model, name, logical expression, and whether the chip can work normally.

After the test, he said anxiously: "Unfortunately, the watch has been modified, a large-capacity battery has been installed, and the current output circuit has been enlarged... These currents are enough to cause a person's heart paralysis and cause his death... ...It's so sad that something like this could happen!" He became angry.

"Who do you think is most likely to modify the watch?" Lu Yingying asked.She could already tell from his expression that he was unlikely to be the murderer, so she would be shocked.

"Of course I'm an expert...I can't be sure." He frowned tightly, wondering what he was thinking?Maybe he knew who did it, but he didn't want to say it because there was no evidence.

"What do you seem to be worried about?" Jiang Yiming looked at him and said.

"No, I'm wondering who has this ability. With you as my strong backing, I have nothing to worry about." He still looked sad and worried.

"Could it be that hackers have invaded your system?"

"The system password of our product is encrypted with 128 Arabic digits and English. It is not difficult for hackers to invade our system. Judging from my knowledge, no such advanced hacker would do such a thing, because the orchestra is just An ordinary citizen, if the orchestra is the head of the government, that’s a different story.”

"Our theorem is: eliminate all impossibilities, and the remaining possibility is the truth, no matter how unreasonable it is." Jiang Yiming said that he felt that Shi Qian was hiding something, and then added, "Besides you, who else knows about the system? Password?"

"Only our chairman Xiang Yifei knows... However, he is good friends with Guanxian and Anli, and they are shareholders. Xiang Yifei holds 40% of the shares, Guanxian and Anli each hold 30% of the shares, and the company can With normal profits, Xiang Yifei cannot kill them." He said with certainty.

"I think the murderer used the password to log in to your system, and then sent a signal to Anli and Orchestra's watches, giving them electric shocks, causing one of them to fall into the water and drown, and the other to fall to death, but there is no evidence. If someone logs in If it breaks into your system, will it leave traces?" Lu Yingying asked.

"Of course there will be traces, but now there are wireless networks everywhere. If the murderer uses the public wireless LAN to log into our system, there is no way to find out who did it." Sweat broke out on his forehead, and a chill ran down his back. Of course I understand that Xiang Yifei is extremely suspicious.

"Does Xiang Yifei usually log in to the system?"

"No, he is the chairman. He only cares about the company's decisions and does not manage the health status of customers. Moreover, he often goes to Hong Kong and Indonesia and hands over all customer management rights to me." "From April 4 to now, How many times have others registered in the system besides you?"

“我刚才已经看过了，只有两次，第一次是4月15日早晨6点10分，于6点20分退出登录；第二次是4月20日傍晚5点30分登录，于5点40分退出登录。”

"Can you find the IP address for logging into the system?" Lu Yingying asked.

"I didn't go looking for it. This...is not my strong point. Officer Lu, why don't you give it a try?" Shi Qian looked at Lu Yingying and said. When he heard what she said, he judged that she was an expert, so he asked her to go. try to find.

Lu Yingying motioned for him to give up her seat, then sat down and started to operate the computer. Her fingers were tapping rapidly on the keyboard. In less than 5 minutes, she found the IP address where the suspect first logged into the system. It belonged to the public address of China Hotel. Wireless LAN.And Baiyun Park is right next to it.Lu Yingying laughed when she saw it, because the traffic and security monitors around the China Hotel were very dense, and it was not difficult to find the suspect through the surveillance video.

Lu Yingying began to look for the IP address of the suspect's second login to the system, and soon found it. It belonged to the public wireless LAN of the Sanjiang Hotel near Daishan Community. There were also many monitors nearby, unless the suspect was an invisible person. Otherwise, it would be easy to catch him.

Lu Yingying took a screenshot of the suspect's login time webpage. In the name of assisting in handling the case, she invited Shi Qian to the Municipal Bureau and arranged for him to stay in the Public Security Hotel of the Municipal Bureau. First, she prevented him from tipping off Xiang Yifei. Although this possibility is extremely rare; the second is to ask him to help solve the case at any time. Lu Yingying knows that she is not omnipotent and does not know much about the chip industry because she specializes in the technology.

Lu Yingying began to divide the work and asked Wen Xiaorou to take two people from the visual investigation team to check the surveillance videos around the Sanjiang Hotel. She took two people to check out the surveillance videos around the China Hotel. Although this work was very arduous, as long as there was a target , the efficiency is extremely fast.

There were six people in the visual investigation team. It took them almost a day to finally find Xiang Yifei.Although Xiang Yifei was wearing a large mask and sunglasses, the sharp-eyed people of the visual investigation team still saw that Xiang Yifei used an Apple laptop to commit the crime both times.

The first time he stood on the overpass connecting the China Hotel and Baiyun Park, connected to the wireless LAN of the China Hotel, and committed the crime. From his position, he could see the Crescent Lake, but he could not see the lakeside road because it was separated by tall mulberry trees. .He doesn't need to see Anli, because Anli's watch can locate it accurately to 50 centimeters to 90 centimeters.

The second time he committed the crime, he was standing in the window of the corridor on the third floor of Sanjiang Hotel. From here, he could see the starting point of the orchestra's fall.Anyone can use the Sanjiang Hotel's wireless LAN. The password is 888888, which is the password for most public wireless LANs. Xiang Yifei graduated from the Provincial Computer College. It is easy for him to crack the public wireless LAN password.

The most powerful thing about Xiang Yifei is not only that he knows how to use a watch to electrocute Anli and Quanxian, but also knows that a small amount of current passing through the human body will not leave any current spots. Therefore, Luo Jin cannot know what caused Anli and Quanxian's heart paralysis.

Lu Yingying felt that Xiang Yifei's laptop should be confiscated for inspection, because the computer's hard drive would record which wireless LANs he used to log into his company's system to kill people.Unless he throws the computer into the sea or burns it.Judging from his expression when committing the crime, he was very confident and did not expect to be caught.

Jiang Yiming took the search warrant and called Lu Yingying, Zhou Ting, Xiao Ke and Wu Jiang to Xiang Yifei's office. When they appeared in front of Xiang Yifei, he immediately felt something bad. His hands and feet felt as soft as stepping on cotton. He couldn't even breathe, and his face became paler and paler.

Lu Yingying saw an Apple laptop on the desk. The size was exactly the same as what was seen in the surveillance video. So she put on gloves and asked Xiang Yifei to turn on the computer. Xiang Yifei actually said that the computer was not his.She asked who he belonged to?He couldn't tell, so Lu Yingying ignored him, put the computer into the evidence bag and said to him: "We suspect that you used this computer to emit current remotely. An Li fell into the water and drowned, and the orchestra fell to his death. We must confiscate this notebook. computer."

"This notebook really doesn't belong to me. I don't know why it appeared on my desk." He tried his best to quibble.

"Don't kid yourself. I believe your fingerprints and DNA samples can be extracted on the computer. Your company studies life sciences. You should know that we can use 0.1 mm of skin scraps to make DNA." Lu Yingying looked at him mockingly. .He felt that disaster was approaching and could only remain silent. He regretted not throwing away the laptop.

Xiang Yifei was summoned to the Municipal Bureau's Criminal Police Team. Jiang Yiming asked Xiao Ke and Zhou Ting to handcuff him and put him in the interrogation room.

(End of this chapter)