"At 11 p.m. the day before the signing ceremony began, Target No. 1 entered the elevator and sprayed the spray paint with combustion-supporting agent."
Xu Xiaodong walked into the elevator and gestured with the spray paint bottle on his hand. On the night of the 24th, the police were restoring the entire crime scene. If you want to sort out the crime scene, you have to put yourself in and feel it.
In addition to the police officer who was involved in the case, Chen Shi also brought Tao Yueyue with her. She said she wanted to come and see, anyway, tonight was just to restore the scene, and Chen Shi brought her here.
"Shortly afterwards, Target No. 2 entered the elevator and installed a ignitor under the emergency button."
Lin Qiupu was reading the story of the case, and Xu Xiaodong cooperated to repeat it.
After the ignitor was identified, it was two plastic sheets sandwiching traces of mercury fulminate and yellow phosphorus. As long as they were pressed lightly, they would spit fire and ignite the paint on the wall. I have to say that the person who planned this crime was really strange. Thoughts.
"Uncle Chen, is it easier to kill people with a little knowledge of chemistry?" Tao Yueyue asked in a low voice.
"It's not necessarily. Some dangerous goods are hard to get, and technical police are all experts." Chen Shi said.
The fellow Peng Sijue glanced back at the two of them, and Chen Shi said: "We are discussing the case. By the way, can the source of the ignitor be investigated?"
"It's difficult. These things are indeed the chemical products in the daily children's throwing guns. After purification, the murderer can make his own as long as he has a little knowledge of chemistry."
Tao Yueyue said: "Why not just use them to kill people?"
Peng Sijue explained: "It takes a lot, a lot, and the yellow phosphorus burns very fast. Maybe it needs to be mixed with sawdust and gunpowder. If you buy so many gunpowders, it will definitely arouse suspicion."
Tao Yueyue nodded, and Lin Qiupu frowned and said, "Can't you talk about something else? How can you teach children this kind of stuff?"
Chen Shi said: "My kids like these."
Lin Qiupu shook his head, "The failure of education! Go, go upstairs!"
When everyone came to the third floor, Lin Qiupu continued: "It was also around nine o'clock the night before the signing ceremony. Target No. 3 came here, removed the cover of the main control board, and used a laptop to connect to the serial port to cover the elevator control program. He may have put a mobile phone for remote control."
Lin Dongxue said: "As long as you dial with your mobile phone, the elevator will fall down?"
"We speculated that this was the case, but the tools were recovered afterwards, and the elevator procedures were also covered back without leaving too many traces."
Staring at the main control board, Chen Shi thought of Sun Zhen. When he was young, he had written a virus that tampered with elevator programs, but Zhou Tiannan himself was also a master programmer, so he shouldn't be bothered by this level.
Chen Shi said: "This is a very critical part of the entire murder. What is the name of Target 3?"
Lin Qiupu glanced at the record and replied: "Cheng Liwei, an ordinary office worker, is a salesman. He doesn't know anything about programming. The man in the black hat taught him how to do it... But this guy was suspected of killing his wife and was arrested for lack of evidence. freed."
"Sure enough, he is a person who has been'favored' before he will be entrusted with important tasks." Chen Shi nodded.
Tao Yueyue asked: "Why don't you just use the elevator to throw the deceased to death?"
Chen Shi explained: "Elevators have hardware and software insurance. These are independent. Most elevators have buffers up and down. If you want to use the elevator to kill people, unless someone cuts the rope from above, it is almost impossible. , The cable is thicker than your wrist."
Peng Sijue said: "The elevator door is more dangerous than the elevator itself. Someone has been broken by the elevator door."
Lin Qiupu said: "I have to add another person, Target No. 4, before the first three people sneaked in and got involved, Target No. 4 drove into a car parked outside, had a small dispute with the owner, and led away from the security guard. Notice.
Chen Shi said: "How long does it last?"
"According to the security guard, the two quarreled for a long time, and then they called a traffic policeman, who looked like 20 minutes before and after."
Lin Dongxue said: "Four security guards, none of them noticed that someone came in, so their nerves were so rough."
Chen Shidao: "Target No. 4 is a beautiful woman. She dressed very sexy and hot that night. What do you think the security guards can see."
"Oh, man!" Lin Dongxue sighed.
A group of people came to the room where the deceased lived. It was on the 16th floor. Lin Qiupu opened the door. There was no light in the room. From the window, you could see the brightly lit night view below. Lin Qiupu said: "The deceased spent the night here before the signing ceremony. At 7 am before the signing ceremony, Target No. 5, dressed as a cleaner, entered here and sprayed poison on the collar of the deceased’s shirt. To be on the safe side, she sprayed all the shirts in the closet."
Peng Sijue added: "The poison is mixed with the fragrance. The deceased usually wore this perfume, so I didn't notice it."
Lin Dongxue said: "Why didn't she poison the drinking fountain directly?"
Peng Sijue said: "The killing effect of poisoning is not very good. If the dose is not large, it is easy to rescue. If the dose is too large, there will be peculiar smells. Unless the taste of the food itself is too big to cover up, but the deceased only eats porridge and bread in the morning. As well as fruit juice, these are not easy to poison."
Chen Shi said: "This is the plan of the murderer behind the scenes. If the poison is directly poisoned, the success rate is not high. The poisoner himself will directly become the murderer. The effect he expects is that even if we arrest all the suspects, it will Can stare."
This murder was like an unprecedented grand performance. Chen Shi thought to himself that Zhou Tiannan seemed to be deliberately showing off his skills, showing his omnipotence.
He shouldn't be satisfied with a simple way of killing.
Lin Qiupu said: "This number 5 is also the subject of our focus. She is the owner of a small company. She was once prosecuted for commercial crimes, but the key witness, her accountant, mysteriously disappeared and was finally released without charge... Old Chen, like As you said, No. 5 is also a person who has been'favored'."
"It seems that there is a feeling of raising soldiers for thousands of days and using them for a while." Chen Shi sighed.
"Let's go to the scene!" Lin Qiupu said.
Everyone came downstairs. The scene had been cleaned up long ago. Lin Qiupu went around in the empty hall and said: "On the day of the signing ceremony, there were 6 people who appeared here. The tasks they were assigned were all to create chaos. Someone was responsible for getting food. Some people are responsible for bringing suspicious items to attract the attention of bodyguards, some are responsible for calling and falsely claiming that there is a bomb in the house, and some are responsible for turning off surveillance."
Peng Sijue explained: "The reporter's poison is not fatal. In fact, it is a glycerin preparation, that is, Kaisailu, which can cause acute stomach cramps when consumed in the stomach."
"It's a bit disgusting!" Xu Xiaodong said.
Chen Shi looked around, "I always feel that the chaos created on the scene is still a bit of pediatrics. If I am the main envoy behind the scenes, at least I will put it on fire."
Lin Qiupu said: "A fire is definitely the next best thing. It is difficult to control, and secondly, the deceased may not enter the elevator... It is common sense not to enter the elevator in the event of a fire."
Peng Sijue added, “If the fire spreads, the paint in the elevator may be ignited beforehand, and the murderer’s plan will go bankrupt.”
Lin Dongxue raised a question, "What if someone else occupies the elevator or shares the elevator with the deceased?"
"On this point, after monitoring showed that there was chaos at the scene, the deceased was escorted into the elevator by bodyguards and pushed out a person who was going to take the elevator. The bodyguards said that this was an order they received, and it was the captain who used the walkie-talkie. Sent."
Chen Shi groaned, "The dead are like a frightened bird. Generally speaking, chaos occurs on the scene. As the host, he should stand up and maintain order as soon as possible. But his choice is to leave quickly. Qu Jingan has worked hard in the business world for so many years. It’s impossible not to know the etiquette... The bodyguards on the scene have temporarily tripled, as if he had predicted that something bad would happen..."
Lin Dongxue concluded for him, "You mean, the deceased had received a homicide notice before!?"