Serious Crime Unit 1

Chapter 18 The Price of Cheating (8)
Jiang Yiming decided to arrest Xiao Qing. He took Wu Jiang and Zuo Li to Xiao Qing's home in the early morning of August 8 and rang the doorbell. After they rang the doorbell for more than ten minutes, there was still no response. Jiang Yiming called the property management The clerk took the key and opened Xiao Qing's door. As soon as they entered, they smelled a strong smell of gas. Jiang Yiming realized that the situation was not good and rushed into the bedroom. He saw Xiao Qing lying motionless on the bed. He turned his ears Listening close to Xiao Qing's chest, there was still a faint heartbeat in the chest. He quickly dialed 29. Wu Jiang and Zuo Li opened all the doors and windows to let the breeze blow in and dilute the gas in the room.

Ten minutes later, the 10 ambulance arrived. Jiang Yiming ordered Wu Jiang and Zuo Li to stay at the scene for investigation. He followed the 120 ambulance to the hospital... After more than an hour of rescue, Xiao Qing was brought back from the line of death by the doctor, but could not When he opened his mouth to speak, the doctor said that he would have to be observed for another 120 hours before he could be questioned. Jiang Yiming was afraid that Xiao Qing would be silenced, so he transferred four criminal police officers from the bureau to guard Xiao Qing 24 hours a day.

Back in the team, Wu Jiang reported the on-site investigation to Jiang Yiming: The gas leaked from the leather pipe connected to the water heater, and a small hole was melted into the leather pipe with a red-hot No. 2 iron nail. Because Xiao Qing's bedroom is connected to the bathroom, the bathroom door is not closed and may have been opened intentionally, so the gas leaks continuously into the bedroom. The doors and windows of the bedroom are all closed. If we go one hour later, Xiao Qing will definitely die!

Why didn't Xiao Qing smell the gas?It was initially determined that Xiao Qing was drunk or given sleeping pills. It was obvious that someone wanted to kill Xiao Qing.

One thing I don’t understand: Luo Jin calculated based on the leakage amount and concentration of the gas that the gas should have started leaking around 4 a.m. today. If it had leaked earlier than 3 a.m., Xiao Qing would have been poisoned and died. However, according to the investigation of Quanyuan Community According to the investigation by the security guard at the gate, the security guard said that Xiao Qing was sent back at 11 o'clock last night. At that time, Xiao Qing was already drunk and unconscious. The security guard helped Xiao Qing home with the guest. Later, the security guard remembered that the person was Lu Xiaohua, Lu Xiaohua went downstairs and drove away around 11:4. We suspected that Lu Xiaohua sneaked back to Xiao Qing's house to commit crimes at 3 a.m., but we did not extract Lu Xiaohua's footprints and fingerprints from the bathroom. The key now is to investigate Lu Xiaohua's early morning Where was he from 5 to [-] o'clock?
"Well, your idea is very good. We will investigate Lu Xiaohua immediately." Jiang Yiming called Lu Xiaohua and asked him where he was last night.Lu Xiaohua said calmly that he and Xiao Qing drank at a palm wine house last night until almost 11 o'clock. He didn't expect Xiao Qing to be in a very bad drinking state. He got drunk before finishing a bottle of Wuliangye. He felt very disappointed and sent Xiao Qing away. After going home and sleeping, he drove back to Binhe. Because he was driving under the influence, he drove very slowly. It was almost 3 a.m. when he returned to Binhe, as the security guard at the parking lot of his community and his wife could attest.

Jiang Yiming thought for a while, then called Wang Wenming and asked him to go to Jinhui Community where Lu Xiaohua lived to help him confirm whether Lu Xiaohua's words were true.Wang Wenming promised to investigate immediately.

Two hours later, Wang Wenming called back and said that everything Lu Xiaohua said was true. This result plunged Jiang Yiming and Wu Jiang into a lot of confusion: Could there be someone else as the murderer?Or did Lu Xiaohua pay for the murder?Jiang Yiming decided to go to the scene again with Wu Jiang. Maybe he and Zuo Li missed something?
No.20: Nine incredible “sugar spikes”

Jiang Yiming and Wu Jiang investigated the scene again, and the results were no different from last time. Jiang Yiming saw the gas pipe soaked in the basin with water. He opened the gas valve, and the gas came out of the water in the basin. He felt Something is wrong. Why did the murderer have to put the leaking leather pipe in the water?Is it an accident?Probably not. There might be something wrong with the water in the basin. Jiang Yiming took a water sample back to the team and asked Luo Chen to test it.

The test results showed that there was nothing in the water except a trace amount of sugar.When Jiang Yiming heard this, he thought for a moment and realized why there was sugar in the water: If Lu Xiaohua had done all this, he had melted the sugar in advance and poured out a "sugar nail" the same size as the No. 2 iron nail. Then light the alcohol lamp, burn the No. 2 iron nail red, burn a hole in Xiao Qing's gas pipe, plug the hole in the pipe with a "sugar nail", then put the pipe into the water, "sugar nail" "After being put into the water, it began to slowly dissolve. After a few hours, the "sugar nail" completely melted, and the gas leaked from the leather tube, thus achieving the purpose of killing and proving his alibi at the crime scene... This The trick is so clever!But these are just assumptions, and there is no evidence to prove that it was Lu Xiaohua who did it.

The next day, Luo Jin tested the diazepam component from Xiao Qing's blood sample. The diazepam tablets were taken by Xiao Qing into his stomach between 8:28 and 10:30 pm on August 11. Xiao Qing has never been in the habit of taking sleeping pills. , it is certain that someone put drugs in Xiao Qing's wine, and this person should be Lu Xiaohua.

肖青这时已经从昏迷中苏醒，在医生的同意之下，江一明对他进行问讯：“8月28日晚上10点30到11点30之间，你在哪里？和谁在一起？”

Xiao Qing said weakly: "At that time, Lu Xiaohua and I were drinking at a palm wine house."

"Drinking? Have you ever tasted anything else? For example, a bitter taste?"

"No."

"Did you know? Someone put sleeping pills in your wine. He is Lu Xiaohua."

"No, it's impossible. Why would he do this?"

"In order to kill you and silence you!"

"Quiet? Impossible, absolutely impossible! Lu Xiaohua is my best classmate, how could you harm me? You must have made a mistake. Someone else must have murdered me." Of course Xiao Qing did not admit that it was Lu Xiaohua who harmed him. Once he admits that Lu Xiaohua wants to kill him and silence him, it is equivalent to exposing Lu Xiaohua. Lu Xiaohua is exposed, and he is also exposed. Isn't that asking for death?Xiao Qing would rather die in the hands of Lu Xiaohua than become a suspect for killing his wife! "We posted your photo on the 'Same Leaf' website, found Huang Minzhong, and made a record. However, because of our negligence, we did not delete your photo from the website in time. Lu Xiaohua saw it and investigated The IP address is the IP address of our criminal police team. He is a dog with a keen sense of smell. We realized that your exchanging murders had been discovered by us. We drove to Shuixing Town, found Huang Minzhong, and asked him if we had looked for him, because we were looking for him at that time. Huang Minzhong was told not to leak out the fact that we were looking for him, so Huang Minzhong initially denied it. However, Lu Xiaohua gave him 1 yuan. Huang Minzhong was shaken by the interests and told Lu Xiaohua that we had looked for him before. Later, 1 yuan was given to him. Yuan was confiscated by the Horizontal Town Police Station. In order to kill you and silence you, Lu Xiaohua took advantage of our application for your arrest to kill you in advance. However, he did not expect that we would come to your house on the morning of the 28th. He was discovered by us in time and took your Take life back."

"Everything you said is simply nonsense and has no meaning except to make me laugh."

Jiang Yiming knew that Xiao Qing was a person who would not cry until he saw the coffin. Without evidence, it was difficult to get him to speak. There was no point in asking further.

Section No.30 Re-survey the site
Analyzing the entire case, Jiang Yiming and others believed that Xiao Qing was easier to deal with than Lu Xiaohua, so they decided to find a breakthrough in Xiao Qing.

They did a DNA test on Xiao Qing's blood sample, then drove to Binhe City, found Wang Wenming, and asked him to take a look at the investigation records and physical evidence at the scene of Wang Chunyue's death. Binhe criminal police only extracted two types of shoe prints and some hair from the scene. , dander and fingerprints, etc., but they all belong to Wang Chunyue and Lu Xiaohua, so they are of little value. It stands to reason that as long as Xiao Qing is the murderer, he will definitely leave clues at the scene, unless he is not a human but a ghost!

Was there something that was missed when surveying the site?Jiang Yiming asked Wang Wenming: "Has anyone been to Wang Chunyue's house since the incident?"

"No, it's sealed by us. No one is allowed in without our consent."

"Let's go with us again. Maybe we can find something from it."

The three of them took people from the technical department and walked into Wang Chunyue's rental house again. They spent an entire afternoon carefully surveying every inch of the floor, walls, sofas, etc., but found nothing. When they were about to give up, Jiang Yiming used multi-band LED to detect a heart-shaped sweat stain on the back of the sofa. The surface of this sweat stain has not been worn. It may have been left by the murderer, because there are still many sweat stains on the sofa, but its surface has been worn. , the technician extracted the sweat sample through dilution. Jiang Yiming thought this was an important discovery, but the Binhe surveyors did not find it!The people in the technical department apologized and explained to Jiang Yiming: There were a lot of sweat stains on the sofa at that time, so they ignored the sweat stain...

Jiang Yiming took the sweat sample back to the Yangtze River and gave it to Luo Jin, asking him to compare the DNA of the sweat sample with Xiao Qing's DNA.Three days later, Luo Jin handed the DNA map to Jiang Yiming and said with a smile: "Captain Jiang, congratulations, the DNA of the sweat sample and the blood sample can be identified as the same."

In the interrogation room, Xiao Qing's hands were tied, but he looked innocent. Jiang Yiming knew that he was disguising. This was the suspect's minimum defense method.

"Tell me, how did you kill Wang Chunyue? Tell me the process and details in detail." Wu Jiang said.

"Officer Wu, I didn't kill anyone, please don't accuse me unjustly." Xiao Qing said loudly.

"You know best in your heart whether I have wronged you or not. Listen carefully. The nature of what you say and what we say for you are completely different."

"I didn't kill anyone, how can I say that?"

(End of this chapter)