Serious Crime Unit 1

Chapter 675
“人死后一般大约经过1-3小时，肌肉轻度收缩，关节不能弯曲，开始出现尸僵；经过12-16小时，尸僵遍及全身。可因外界温度高低、尸体体质情况、死因不同而出现有早有晚。尸斑则于人死后平均2-4小时出现……结合两者进行分析，死者大约死于今日凌晨00：30到02：30之间。”

This is Luo Jin's habit. As if he has obsessive-compulsive disorder, he has to educate Jiang Yiming about forensic knowledge every time. In fact, Jiang Yiming's ears are already ringing.

"This period is when people are asleep. Can you tell what kind of poison you were poisoned?"

"It can't be seen. It can only be analyzed with a gas chromatography mass spectrometer after an autopsy."

"Could it be tetraethyl lead? I was given this kind of poison by Chen Gang in 2008. I almost died at that time. Do you still remember?" Jiang Yiming asked.

"Of course I remember. Fortunately, you called us in time. Otherwise, you wouldn't be you standing in front of me. Tetraethyl lead is highly toxic and highly volatile. In addition to entering the human body through breathing, it can also pass through the skin. It penetrates into the human body, reaches the heart, and then causes death. Judging from the color of the corpse spots and conjunctiva, it may be tetraethyl lead. Unfortunately, more than 7 to 9 hours have passed since the incident, and it has already evaporated. To the naked eye, it has evaporated. can not tell."

"If it's tetraethyl lead, the murderer doesn't have to get close to Ding Hui. He can spray venom from above his head or outside and successfully murder him. This way our investigation scope will be wider." Jiang Yiming frowned slightly.

"Yes, because there is no anti-theft net on the balcony, the murderer only needs to use a ladder to climb up and attack Ding Hui who is sleeping."

"We assume that the murderer sprayed Ding Hui with liquid tetraethyl lead. Then, after Ding Hui's skin was stained with venom, he should have reacted. Why didn't he call the emergency call?" Jiang Yiming felt strange.

"Ding Hui should have taken a lot of sleeping pills. He couldn't save himself in his deep sleep. Looking at his curled up body, you can tell that he died in his sleep. Otherwise, he would definitely run to the bathroom to rinse his body, so he might Then he wouldn't die. Also, I smelled alcohol from his mouth, he might be drunk."

Jiang Yiming nodded and looked at the mountain outside the balcony. He visually estimated that the mountain was about 8 meters away from the balcony. Below the mountain was a stone ridge about four meters high. The stone ridge was made of cement powder to form a wall.If someone stood on the stone ridge and sprayed venom at Ding Hui with a special sprayer, he would also be doomed.

The most important thing is whether Ding Hui needs sleeping pills to fall asleep?If necessary, how many tablets should be taken at one time?If we go by the rules, he should wake up when the murderer sprays the venom on him.Because liquid tetraethyl lead is cold.

Jiang Yiming left the balcony and went to find Peng Fang with Zhou Ting.She sat in the hall on the first floor and cried silently, as sad as if her husband had died. Her shoulders were shaking, and she wiped her tears with the tissue on her hand from time to time.

Peng Fang is 38 years old. She comes from the countryside of Shiyan City, Hubei Province. She is 160 centimeters tall, has a slim and flexible figure, slightly dark skin, fairly regular facial features, small and lively eyes, and is wearing a black sportswear. She does not look like a Country women.

"Ms. Peng, please don't be too sad. People can't be resurrected, and crying can't solve the problem." Jiang Yiming sat down in front of her and said to her calmly.

"I know, but I have worked in Mr. Ding's family for 12 years, and he is as close to me as my own brother. Can I not be sad?" She looked up at Jiang Yiming, her eyes blurred by tears, and she couldn't see his appearance clearly.

"I understand, but the most important thing for us now is to find the murderer and avenge him. Otherwise, he will die in peace."

"You are right, what do you need me to do? I will try my best to cooperate with you." Her Mandarin had a strong Shiyan City accent.

"Thank you! Does Ding Hui often take sleeping pills?" Although it is not certain that he took sleeping pills before the autopsy, asking insiders in advance will help the progress of the case and confirm whether his and Luo Jin's speculations are reasonable.

"Mr. Ding relies on sleeping pills to fall asleep every day. He has been taking them for 10 years and has become dependent on them and cannot quit."

"What kind of sleeping pills is he taking?"

"Usually it's alprazolam or estazolam."

"How many tablets should I take at one time?"

"In the early years, I only took a quarter of a tablet, then half a tablet, and now I have taken two tablets."

These two sleeping pills are not powerful drugs and belong to the second category of psychotropic drugs. The most powerful ones are triazolam and sleeping pills.Adults only need to take two tablets of triazolam to fall asleep within 10 to 15 minutes. If it is a concentrated form, they can fall asleep within 3 to 5 minutes. Therefore, criminals often use it to do bad things.

"What's the name of Ding Hui's wife?" "My name is Ye Yayi." Her tone seemed a little strange, but she couldn't tell what it was.

"Why isn't she at home?"

"She went to Sanqingshan for a trip on the morning of the 20th. I had already called her. She didn't believe it and said that Mr. Ding and I conspired to deceive her. I had no choice but to lay Mr. Ding on the balcony. I sent her a picture of his death, and she believed it. Oh, how dare I deceive her, I have to get my salary from her," she said aggrievedly.

"When did you call her?"

"A quarter of an hour before you guys arrive."

"That's around 9:15. We got here at 9:[-]. When did she say she would be home?"

"She said she had checked the flights. The earliest flight back to Yangtze River Market was at 6 p.m. and it would be 7 p.m. to get home. She was so anxious that she had already hired a taxi to rush back from Sanqingshan. It was about 4 hours away and she should arrive at 1:[-] p.m. Rush home."

"Did any guests at your home come to visit Ding Hui last night?"

"There are two middle-aged men. Mr. Ding asked them to come drink."

"Oh, when are you coming? When are you leaving? Where are you drinking?"

"They came around 10 o'clock last night. Before they came, Mr. Ding asked me to clean up the table on the rooftop and put five dishes of braised vegetables on it. They wanted to drink. After I put the dishes and bowls and chopsticks, they I went upstairs and sat in the living room on the first floor watching TV. I was going to wait for them to leave before clearing the dishes. But by 12:7, they had not left yet. I sent a WeChat message to Mr. Ding to ask when they would leave. Mr. Ding told me to go to bed first and clean up today. So, I went to bed. I rarely go to bed so late, and I didn’t get up until [-] a.m. "

"Do you know the two guests? What are their names?"

"We know each other, but it's just a casual acquaintance. I don't know their names, and I haven't asked Mr. Ding. We, the current people, shouldn't inquire about our master's private affairs. Otherwise, we won't be able to work for a long time no matter where we work. This is a matter of principle."

"Okay, that's it for today. If you think of something suspicious, please call us. Our conversation today is not allowed to be spread to the outside world. Otherwise, it will not be good for you. When Ye Yayi comes home, ask her to come to the criminal police team Identify the body, we need to talk to her." After Jiang Yiming finished speaking, he stood up and returned to the second floor.Luo Jinzheng and Wu Jiang put the body into a body bag and prepared to have it taken away.

They said that they had completed the investigation. Jiang Yiming thought for a while and said: "Zhou Ting and I went to the stone ridge opposite the balcony to investigate, Lao Wu and Xiao Ke went to the rooftop to investigate, and Yingying went to check the surveillance video of the villa area. If the murderer used a ladder If you climb up to the balcony and spray venom on Ding Hui, you can quickly find him from the video. Luo Jin and the corpse truck will return to the team first and conduct an autopsy as soon as possible."

So, everyone continued to work.

2
"The deceased Ding Hui died of tetraethyl lead poisoning, which was absorbed into the body through breathing and skin. Tetraethyl lead is a colorless and transparent oily liquid with a slightly fruity and sweet smell. It is highly volatile at room temperature and its specific gravity is slightly higher than that of air. Big. Acute tetraethyl lead poisoning is a systemic disease with neuropsychiatric symptoms as the main clinical manifestation. The tetraethyl lead inhaled by Ding Hui is purified and is 10 times more toxic than ordinary tetraethyl lead. As long as 0.5 is inhaled Grams can kill you in a matter of minutes."

"I have learned this before. I almost died at the hands of this demon. With the rapid development of technology now, it is not difficult to purify tetraethyl lead... Luo Jin, you haven't said the time of death yet." Jiang Yiming's eyes stayed on Luo Jin. .

“丁辉死于2017年10月21日凌晨1点到2点之间。”

"Yingying, you checked the surveillance video of the villa area. Did you find anyone suspicious?"

"The monitoring facilities in the villa area are very complete, with almost no blind spots. The clarity of the monitors is very high. I checked the video from 21:0 to 3:20 on the 10st and only saw two middle-aged men entering at 909:20 on the 1th. In Villa No. 10, Peng Fang opened the door and let them in. When they came out, they were 1 minutes behind each other, at 30:[-] and [-]:[-] respectively. This was a bit strange, but other than that, no suspicion was found. "

"I found these two people in Ding Hui's mobile phone address book, one named Ji Xiao and the other named Mou Zhong. At 20:8 pm on the 5th, Ding Hui called Ji Xiao, and the call lasted 2 minutes and 20 seconds. , and then he called Mou Zhong again, and the call lasted for 1 minute and 58 seconds, which was consistent with what Peng Fang said."

"Xiao Ke and I extracted 5 types of footprints on the rooftop of the third floor of Ding Hui's house. Two of them were from women. We analyzed that they should belong to Peng Fang and Ye Yayi. The other three were from men, and should be from Ding Hui and Ji Xiao. And Mou Zhong’s, but we haven’t had time to compare and can’t confirm it yet,” Wu Jiang said.

(End of this chapter)