Serious Crime Unit 1

Chapter 881 Deadly Poison (2)
"Director Yang, Director Yang, what's wrong with you?" She continued to push him, but he didn't respond. She had to pinch him hard with her hands. She thought he would wake up from the pain, but there was still no reaction.Her heart was beating rapidly, and she realized that something was wrong. She quickly walked to the door, called the three vice presidents, and told them to come up quickly. Something happened to Director Yang.

Then she dialed 120 for help. After thinking about it, she dialed 110 to call the police. She felt that Yang Yang had been dead for a while and could not be revived.When she thought of this, a sudden surge of grief surged from the bottom of her heart, tears flowed out, and her body was trembling.

At this time, three vice presidents had arrived. They saw her crying and asked her what was going on.She choked and recounted the situation intermittently.One of the three vice presidents named Yang Guang was Yang Yang's cousin. When he heard about it, he immediately rushed in to check.

The other two vice presidents also walked in and saw Yang Guang shouting Yang Yang's name loudly. They also pushed Yang Yang hard, but despite his repeated calls, they received no response.Of course the two vice presidents knew that room 2418 required Yang Yang's fingerprints to enter. It was a completely sealed secret room. How could Yang Yang die suddenly in such a secret room?

While they were guessing, Jiang Yiming appeared at the door of Room 1 with Crime Team No. 2418.Jiang Yiming called out the three vice presidents and Zhen Qingmeng to prevent them from destroying the scene. He asked Luo Jin to put on the investigation equipment and go in first to observe to see if the person was dead.

Luo Jin walked in, held a strong flashlight, opened Yang Yang's eyes, and saw that his pupils had spread outwards, and there was no heartbeat, pulse or breathing. After he confirmed that Yang Yang was dead, he shouted to Jiang Yiming: "Captain Jiang,... The person is dead, please come in."

Jiang Yiming asked Wu Jiang and Xiao Ke to go in to investigate the scene, and arranged for Wen Xiaorou to inquire about the monitoring situation. Jiang Yiming asked Zhen Qingmeng.

"Excuse me, were you the first to discover the deceased?" Jiang Yiming looked at Zhen Qingmeng and felt that the woman in front of him was tall and beautiful, and suddenly thought of the word "beauties bring disaster".

"Yes, my name is Zhen Qingmeng, and I am Director Yang's secretary."

"Director Yang? What is his name? Where is he the chairman?"

"His name is Yang Yang, and he is the chairman of Huayang Real Estate Group Company."

"I see that this door is equipped with a fingerprint reader. You can only enter if your fingerprints match. How did you open the door?"

"I... have the fingerprint to open the door. Only Director Yang and I can enter this room. No, that's not right. The hotel attendants also have electronic door cards. They can also go in..." She looked at the three vice presidents standing next to her. I feel very embarrassed.

"Please tell me what happened tonight. Because this may be a murder."

"Murder?" She covered her mouth with her hands and opened her eyes as big as a bull's eye. Jiang Yiming nodded to her and encouraged her to continue. So, she started speaking slowly when she called Yang Yang. Very detailed, trying to explain every detail clearly.She was worried that Jiang Yiming would doubt her, so she looked at him after she finished speaking, trying to get some kind of answer from his face.

"Does Yang Yang have any illnesses?"

"No, Director Yang is in very good health. He has physical examinations 4 times a year. The doctor said that except for some problems with his lumbar and cervical spine, he has no other problems. Oh, and he also has mild neurasthenia."

"Okay, let's talk about it for now. Please leave your phone number with me. We may have to visit you often in the future. You three vice presidents also left your phone numbers with me." After Jiang Yiming finished speaking, he turned to the three of them. said the vice president.The three vice presidents walked up to Jiang Yiming and sent their mobile phone numbers to Jiang Yiming's mobile phone.Then Jiang Yiming extracted the shoe prints and fingerprints of the three vice presidents and Zhen Qingmeng.

At this time, 120 emergency personnel arrived. Jiang Yiming criticized them for being half an hour late than the No. 1 Major Crime Team, saying that the person was dead and told them to go back.The emergency doctor said there was traffic on the road and there was nothing they could do.Jiang Yiming knew that there were rarely traffic jams after 12 o'clock in the evening, but he didn't want to argue with him and just told them to leave quickly.

2
"Luo Jin, tell me about Yang Yang's autopsy results." Every time there is a meeting, Jiang Yiming always asks Luo Jin to speak first.

"The deceased Yang Yang was the chairman of Huayang Real Estate Group Company. He was 54 years old. He died on the balcony of Room 5 of the China Hotel from 11 to 11:11 pm on May 2418. The cause of death was cardiac glycoside poisoning. The deceased had an alcohol content of 100 mg in 80 ml of blood and was in a drunken state."

"What does cardiac glycoside poisoning mean?"

"Cardiac glycosides can increase the contractility of the heart and are clinically used to treat cardiac insufficiency, but their safety range is narrow and the gap between the therapeutic dose and the toxic dose is small. The general therapeutic dose is equivalent to about 60% of the toxic dose; a slightly larger dose is sufficient. Poisoning. If synchronous DC electric shock is used during the use of cardiac glycosides, cardiac glycoside toxic arrhythmia often occurs; in severe cases, ventricular fibrillation may occur suddenly and cause death. Yang Yang died from inhaling a large amount of cardiac glycosides." "Cardiac glycosides are How did it enter Yang Yang's body?" Xiao Ke asked.

"Cardiac glycosides are absorbed into Yang Yang's body through his skin. Cardiac glycosides can be detected using a dilute solution of perchloric acid, which will have a fluorescent reaction under ultraviolet light. I applied the dilute solution of perchloric acid to his body and used an ultraviolet light to When exposed to irradiation, there was a large-area fluorescent reaction. Almost all of his naked upper body was filled with cardiac glycosides, which fell on him like heavy rain. However, because he was in a drunken state and the weather was hot, he could not detect it, let alone help. Calling for help, he died in his sleep, a painless death."

"So, is this another murder using drugs? Like Hu Feixue?"

"Of course, the cardiac glycosides on Yang Yang were in the form of drops. Later, my assistant Liang Ying and I went to the China Hotel again. We investigated in the same way and found a large amount of cardiac glycosides spilled on the floor on the balcony of Room 2418. It was also in the form of dripping, and the murderer sprayed cardiac glycosides from a high place."

"No one can enter room 2418 except Zhen Qingmeng and the waiter. Our on-site inspection did not find any shoe prints except those of the three vice presidents, Zhen Qingmeng and Yang Yang. How did the murderer enter? From the crime scene?" Xiao Ke asked.

"I have already asked the front desk manager of China Hotel. She said that the key card of 2418 has not been activated for three months. I did not believe her and turned on the computer to check. The results proved that what she said was correct. The waiter used It is impossible to open the door with a key card and enter the scene." Wen Xiaorou replied.

"Xiaorou, please introduce the surveillance video of Room 2418."

"I went to check the distribution of monitors on the 24th floor. There are eight monitors on the 24th floor. They are all installed in the corridor. There are no monitoring blind spots. There are guest rooms on both sides of the corridor. One of the monitors is only three meters away from room 8. I Checking from where Yang Yang entered the room until Zhen Qingmeng opened the room, no one entered the room. This is consistent with the shoe prints extracted at the scene."

"Could the murderer fake the surveillance video?"

"This is almost impossible, because the firewall level of the monitoring system of China's big hotels is very high, and it is difficult for hackers to invade, unless of course there is an insider in the hotel."

"Then, the only possibility is that the murderer attacked Yang Yang from the balcony on the 25th floor. There is also a possibility that the murderer used a drone to spray cardiac glycosides at Yang Yang. Just like Ding Ming used a drone to spray tetraethyl lead at Ding Hui Like that?”

"The China Hotel is very close to the Yangtze River International Airport, which is a no-fly zone. If a drone flies in the no-fly zone, it will definitely be detected by the air defense system detection radar. After the airport police station detects the drone, it will send jammers to target the drone. The man-machine made an emergency landing, so I think the possibility of the murderer using a drone to spray cardiac glycosides at Yang Yang is relatively small," Wen Xiaorou said.

"If the murderer's drone is very close to the crime scene, it can complete the murder in a few minutes and then be recalled by the murderer. Even if it is detected by the airport's radar, the airport police will not be able to send a jammer to arrive in time. So, I I think it’s still possible that the murderer used a drone.”

"If this is the case, then the case will be easy to solve, because the airport's radar will capture the model of the drone, and even the take-off and landing points, and then follow this clue to find the murderer, and we may find it."

"I think Zhen Qingmeng is the most suspicious, because she is the only one who can enter Room 2418, and she must be investigated."

"Zhen Qingmeng has an alibi. She only entered the crime scene after Yang Yang died. Doesn't the surveillance video on the 24th floor prove this?"

"It is unlikely that Zhen Qingmeng will kill someone herself. Her position may not be guaranteed after Yang Yang's death, because when Yang Yang hired her, some people criticized Yang Yang and thought that Zhen Qingmeng was not capable enough to be the chairman's secretary. Therefore, I think She can be ruled out as a suspect.”

"The China Hotel only has 28 floors. If the murderer used a rope to descend from the rooftop to the 25th floor and sprayed cardiac glycosides on Yang Yang, it would be easy to do it. At the same time, the residents on the 25th, 26th, 27th, and 28th floors would all be checked. , to see if they have any motive for killing. Yingying and Xiaorou went to the airport to check the data saved by the radar. Lao Wu and Xiaoke went to inspect the rooftop of China Hotel and the outer walls of the balconies on the 2518th, 2618th, 2718th and 2818th floors to see if there were any There were trampled marks, so Zhou Ting and I went to visit the guests living on the 25th, 26th, 27th, and 28th floors.”

江一明和周挺来到中国大酒店的前台，向前台小姐了解2518、2618、2718、2818房住客的情况。前台小姐打开电脑，上登记系统查询，结果查询到2518有个名叫杜帮国的人在那里住了三天。是一对夫妻。他的住址是北市滨江路112号。他们于5月11日上午11点退房。

(End of this chapter)