Forensic Medicine Qu Xiaoshui

Chapter 59 The serial arson case (22)

It's hard not to get angry when you see the photos being handed to you.But rationality finally prevailed: "Chen Kai is the new suspect?" Qu Xiaoshui asked with certainty.

Chen Sheng nodded: "I will arrange Zhao Jun to monitor Chen Kai, Fang Bing to investigate Rui Meng's time witness, and Zhang Ming to investigate Chen Kai's alibi for the time of the previous six fires. Meet!" After saying that, Chen Sheng left without looking back.

They all understood his urgency. According to previous speculation, the time for the next fire to occur was getting closer and closer, and they had to stop the arsonist's crazy behavior before it happened.

Once the investigation direction was established, the progress of the case became rapid. On the afternoon of June 6, the people gathered in the conference room began to collect the information they had obtained.

Zhang Ming was commissioned to investigate Chen Kai, so he was the first to explain his findings: "On May 5, Chen Kai did eat at a couple's restaurant, but at least three people with him could prove that they , and went to the proposal planning studio together. They said it was to plan a proposal ceremony for Chen Kai. Because it was inconvenient to get too close to Chen Kai, I couldn't find out who his girlfriend was."

"On May 5, I asked the shopping guide who was serving Chen Kai and Rui Meng in the clothing store at that time. Because they left very late after picking clothes, she clearly remembered that Chen Kai called a taxi to leave, but The night bus she was going to take arrived late, so after the fire broke out, she met Rui Meng on the same bus. Afterwards, I also found the taxi that Chen Kai took at that time. The driver proved that he had been sending people to He didn’t leave until he got home, and he didn’t stop on the way. Chen Kai’s alibi is established.”

"On May 5th, Chen Kai only appeared in Dawang Park between 29:5 and 7:7 p.m. It is said that there was a live CS held by the club in Dawang Park on that day, and Chen Kai also signed up. According to the testimony of other people in the club and on-site monitoring Investigation, Chen Kai did not show up after [-] pm." Although a little discouraged, "Chen Kai's alibi is established."

"On June 6, when the fire broke out, Chen Kai was drinking in a bar, which can be proved by the bar's surveillance."

"On June 6, when the fire broke out, Chen Kai was traveling in Linshi. He bought a tour package that departed that afternoon, which was a two-day and two-night itinerary."

When Zhang Ming mentioned that Chen Kai was in the bar when the fire broke out on June 6, Chen Sheng threw away his pen.Especially on June 2, he also went to Linshi for tourism, and the suspicion was cleared.Although he was not reconciled, he seemed to have been tricked by the information provided by Rui Meng.

But Qu Xiaoshui's focus is different from his: "Zhang Ming, can you further check whether Chen Kai appeared near the crime scene on June 6 and June 2? Just wondering if he showed up."

Seeing that her request was not understood, she didn't explain much, and saying anything at this time was useless.

Zhang Ming agreed.

Fang Bing followed closely, explaining the investigation results of the time witness provided by Rui Meng: "On May 5, Rui Meng did have dinner with Rani, but after they had the meal, Rani left by car. According to the information provided by Rani Judging from the time of the taxi receipt, Rui Meng has enough time to return to the restaurant and set fire to it."

"On May 5, after Rui Meng and Chen Kai finished shopping for clothes, he had at least an hour of blank time before he left on the night bus. Prove whether he has left. And from the surveillance video on the bus, it can be seen that the location where he boarded the bus is not far from the clothing store that caught fire."

"On May 5, the phone number Rui Meng provided for the night shooting order was empty, and the email address was only an online email address without real-name authentication, which can be applied at any time."

"Rui Meng said that he participated in the blind date party on June 6. I contacted the host, and I investigated all the participants in the party. I didn't find a woman whose address was nearby."

"In the end, I couldn't get in touch with the female netizen he said appeared on June 6. She didn't use her own ID card when checking in at the homestay, and her phone number was also empty. I tried to add the other party's QQ separately, but that didn't work. It’s a new account that’s been registered for less than a year, and there’s no reply to any messages.”

All the investigations have already explained the problem very well. Rui Meng's alibi is basically untenable, and he is still the number one suspect!
"Did Zhao Jun and Li Dong find anything?" Chen Sheng asked after thinking about it.

"Li Dong said that Rui Meng lost his temper when he found out that the computer was missing, but after hearing that the computer would be impounded for a long time, he bought a new computer from the Internet and never went out again."

"As for Chen Kai, Zhao Jun said that he was on his own yacht and never got off. Because it is inconvenient to get too close, he can only monitor from a distance."

Mi Yu: "I'm already deciphering the background of the transfer computer, and I can successfully capture the address of the other party in one to two hours."

Chen Sheng: "At present, the information we have is not enough to completely identify the suspects. Now the most likely criminals are Rui Meng and Chen Kai. The location of the next fire cannot be completely identified. The work is progressing hard. I hope everyone will do their best. As much as we can, seize all the time and use all our strength to explore the truth behind the case. Our time is running out."

"Yes!"

After the meeting, Qu Xiaoshui was a little listless, and she couldn't help much.

Jiang Yue saw her thoughts and couldn't help comforting her: "Your expertise is forensic science and identification, maybe you can think from another angle."

Qu Xiaoshui is not as good as other professional criminal police officers in the investigation of personnel, and Qu Xiaoshui is not as good as her colleagues in the forensic department in terms of scientific and technological deciphering, but in terms of active thinking, no one can beat her.

Encouraged, Qu Xiaoshui quickly calmed down. "Tell Team Chen that I'm going to the fire brigade, and I won't be back before get off work." After speaking, she grabbed the backpack she had prepared and ran away.

Jiang Yue, who was left alone, was a little dumbfounded, but it would be great if he could regain his vitality.

When Qu Xiaoshui arrived at the fire brigade, he was not welcome after explaining his intention.I also know that the investigation results have not been released, and the other party is naturally lacking in confidence.Qu Xiaoshui's arrival was like questioning their incompetence face to face.

But fortunately, the fire captain Nie Xiong, who had passed information to Jiang Yue before, received her.

"In other words, the investigation here is fruitless." Qu Xiaoshui sharply pointed out the key point.

Nie Xiong did not hide it, and affirmed Qu Xiaoshui's guess.

Qu Xiaoshui asked: "Can you let me in and out of the scene of these six fires?"

Nie Xiong hesitated: "We have investigated the scene many times. If you still want to go in, you must be accompanied by professionals."

Qu Xiaoshui looked at him expectantly, until Nie Xiong took the initiative to say: "I can take you there." Then he looked away.

"Don't you need to carry professional tools?" Nie Xiong looked curiously at Qu Xiaoshui who only carried a backpack and a shoulder bag.

Qu Xiaoshui took out his mobile phone, shook it in front of Nie Xiong, and patted his backpack lightly: "I brought everything I need."

In this way, the two investigated from the scene of the last fire.

They appeared on the third floor of the supermarket.The entrance to the floor has been cordoned off and guarded.The walls inside were scorched black, and many things were scattered on the ground.The electric appliances can no longer be used. Fortunately, Nie Xiong is very experienced and brought two large flashlights.

"It's already confirmed that the fire was arson. The fire started inside. I'll take you there." Nie Xiong accompanied the investigation team a few times, and he was quite familiar with the situation inside.

"Where is the fire?"

Nie Xiong nodded: "As the temperature gets lower, thick coal ash will stick to the room, and the walls and ground will be particularly dark." After the fire broke out, the facilities inside became very fragile. He took great care of Qu Xiaoshui who entered the fire for the first time. The two gradually deepened. "With higher temperatures, there is relatively less soot, so this area is where the fire started."

"What's the reason for the fire?" Qu Xiaoshui asked.

"The fire started in a small area, and it was probably caused by the cigarette fire." Nie Xiong replied very ambiguously.

Qu Xiaoshui shook her head disapprovingly in her heart. She felt that the arsonist would not use cigarettes, which was too variable, and the ignition method of DNA might be left behind in the case of incomplete combustion. "Everywhere is black, you can't see it."

"The degree of carbonization is different." Nie Xiong explained, "The fire became stronger at the initial stage of combustion because cooking oil was used as a combustion aid. It may be that the oil was sprinkled first, and then the lit cigarette was ignited."

"Why can you be sure that it is cooking oil?"

"It's the smell. Experienced firefighters can immediately tell whether it's cooking oil, gasoline, or thinner based on the smell." Nie Xiong said confidently to Qu Xiaoshui.

Qu Xiaoshui didn't mean to find fault on purpose, and Qu Xiaoshui asked: "Just after the fire was extinguished, there was thick smoke everywhere, can it be distinguished from this?" She herself didn't believe it.It is said to rely on experience, but to put it bluntly, it is just an intuition without scientific basis.

It is too early to draw conclusions as many of the items at the scene were made of plastic.Plastic is a petroleum product, which will greatly interfere with the sense of smell after burning.

　Ready to speed things up,
　　End the serial arson attack as soon as possible.

　　I'm going to prepare for an exam recently,

　　The daily update time is uncertain,
　　But will definitely update.

　　thanks for your support.

　　You can guess, is the prisoner Rui Meng or Chen Kai?

　　
　
(End of this chapter)