Outside the scene, Chen Yi and Lu Guangjun stood at a distance, exchanging information about the first case.

Taking the cigarette handed by Lu Guangjun, Chen Yi spoke: "Female? Tell me more about it. ”

As he spoke, he raised his hand and lit a cigarette.

Lu Guangjun recalled the facts of the case, and told Chen Yi about the process of Li Yao's killing and the current progress of the investigation.

Although it was used in relatively short language, it was very detailed and did not omit any important points.

Chen Yi didn't interrupt, he listened carefully, and when Lu Guangjun's voice fell, he asked what he cared about: "I wanted to commit suicide by jumping off the building a week ago, can't it be a coincidence, do you have a photo of the deceased now?" ”

Lu Guangjun: "Wait a minute. ”

He took out his mobile phone and clicked on the work group, and after rummaging for a while, he showed Li Yao's photo to Chen Yi.

Chen Yi took a look at it and was sure that it was the girl who jumped off the building when he was shopping with Fang Shuyu before, when the fire and police had arrived, and the person had been rescued.

"Chen Zhi, what coincidence did you just say?" Lu Guangjun asked.

Chen Yi explained: "When I was shopping a week ago, I happened to encounter the jumping incident. ”

Lu Guangjun was surprised: "Such a coincidence? ”

Chen Yi nodded: "It's really a coincidence, I didn't expect that it was only a few days before I was killed, but ...... Judging from your investigation results, there seems to be no direct relationship between Li Yao's murder and Li Yao's suicide. ”

Lu Guangjun agreed: "At present, this is indeed the case, it doesn't matter, I was about to send someone to Li Yao's hometown to visit and investigate, but I didn't expect to die again, and the two have the same characteristics of the crime, it can basically be determined that the same person did it, right?" ”

Chen Yi snorted: "There is a high probability, how can there be such a coincidence, since you don't seek wealth, then there is a grudge." ”

Lu Guangjun: "I also think it's a vendetta, but after checking the interpersonal relationship, there is no gain, this is more evil, generally speaking, with the big feud of murder, it is unlikely that there will be no connection at all." ”

"It shouldn't be...... Random killing, right? ”

Chen Yi did not rashly give a judgment, and if the interpersonal relationship was not found, it did not mean that there really was not: "Find the intersection of two people first, maybe you can make a breakthrough." ”

After the two chatted for a long time, Zhuo Yun finished his visit and returned to the cordon.

"Team Chen." He came to the two of them.

Chen Yi: "Say." ”

Zhuo Yun pointed not far away and said: "The deceased ate at the second barbecue stall, there was only one person, and he drank about six bottles of beer, because there is only one toilet and the guests often need to queue, so many guests are used to going to the toilet here, and the deceased should have died when he went to the toilet." ”

Hearing this, Chen Yi looked around again and made sure that there was no surveillance, only on the restaurant.

"Drinking alone...... Shouldn't you fall out of love too? ”

The thought flashed, and now the clues were missing, so I waited for the results of the forensic and trace investigation first, and then determined the identity of the deceased, and proceeded step by step.

"Chen Zhi, is our branch brigade still involved in this case?" Lu Guangjun asked.

Chen Yi: "Do you have any other cases in your hands?" ”

Lv Guangjun: "There are a few small cases, but the problem is not big. ”

Chen Yi: "Then according to the original plan, we will go to Li Yao's hometown to visit and investigate, keep in touch, we can't let go of any possibility, and the detailed file of Li Yao's case will be sent to the city bureau tonight, hurry up." ”

Lu Guangjun nodded: "Okay Chen Zhi, then I'll go back and arrange it first?" ”

Chen Yi: "Hmm. ”

The criminal investigation brigade left, and only the criminal investigation detachment remained at the scene.

When the remaining traces were almost extracted, Chen Yi and Zhuo Yun walked over.

"Team Chen, didn't Vice Captain He come?" Zhuo Yun didn't see any new signs.

Chen Yi: "There is no need for so many people, let him rest first, in case it is a complicated case and needs to be changed." ”

As he spoke, he came to the corpse, where the forensic doctor was still working.

Without waiting for Chen Yi to ask, Fang Shuyu, who was wearing a mask, said while looking at the corpse: "I have just been dead for two to three hours, an unknown rash is clearly visible on the skin, and there are small pinholes on the back of the neck, but there are no other scars for the time being. ”

"There is a lot of abnormal saliva secretion, like poisoning, and it is necessary to go back to the city bureau for toxicological testing."

Lu Guangjun said just now that the first deceased, Li Yao, was poisoned.

In this way, the possibility of the same murderer is further determined.

"Is your phone there?" Chen Yi asked.

Fang Shuyu: "Yes, there is only a mobile phone on my body, and there are no other items. ”

Unless necessary, few people carry such things as ID cards on their bodies, and a mobile phone is enough.

Chen Yi: "Prepare to collect the team, go back to confirm your identity, Brother Yun, you lead the team to search in the distance to find suspicious items, especially syringes." ”

After killing someone and throwing it away, there is such a possibility, although Li Yao was not found at the scene of his killing, it does not mean that there must not be this time.

Zhuo Yun: "Yes. ”

Chen Yi looked at Jiang Xiaoxin again: "Sister Jiang, monitor and investigate, and pay attention to the people who wrap themselves very tightly." ”

Jiang Xiaoxin: "Understood. ”

The forensic doctor and trace examination returned to the city bureau, and Chen Yi also followed and left, and the scene was handed over to Zhuo Yun for command.

It's going to be another night.

Because the soil is soft and there are many guests who go to the toilet, there are a lot of messy footprints left behind, which need to be screened one by one.

Chen Yi provided Lu Yongqiang with a height of 1.78 meters, which could be screened.

As long as the footprints are locked, and the small probability events are put aside, gender and weight can be determined.

While waiting, Chen Yi sat in the case handling hall, looked through the case file of Li Yao sent by the sub-bureau, and had a clearer understanding of the whole process.

"Poison."

"All acquaintances have ruled out suspicion."

"Don't ask for money."

"Don't ask for color."

After a long time, Chen Yi closed the file and said to himself: "Lao Lu is a bit of a crow's mouth, if this is a random killing, it will be difficult, but ...... The initial elimination of suspicion does not mean that the suspicion is completely eliminated. ”

At this time, Lu Yongqiang left the technical department and came to the case handling hall and reported the screening results of the footprints to Chen Yi.

"I found it, there are indeed footprints that match the height of one meter seven or eight, and the weight is about 70 kilograms, and it is very likely that men are men."

"On that pendant, no fingerprints were extracted, and it was as clean as new."

Chen Yi took the report, and the trajectory of the footprints had been marked.

"Male? That's a standard weight. ”

chose to be poisoned, he thought about the possibility of a female murderer, and did not dare to have a head-on conflict with the victim, and his physical fitness did not allow it.

Lu Yongqiang nodded: "That's right, it's relatively standard, and the body fat rate should be very good." ”

Chen Yi memorized this message as one of the bases for the criminal profile.

Either engaged in physical work for a long time, or just have a habit of fitness.

The choice of syringe poisoning, and the addition of sedative drugs, are very well considered, like intellectuals, not like those who do rough work.

Probabilistically, it is necessary to be inclined to have a fitness habit.

"Chen Yi, come on." Fang Shuyu's voice came from the forensic department.

Chen Yi got up: "Brother Qiang, you go back to rest first, and the identity of the deceased will be discussed at dawn." ”

Lu Yongqiang: "Okay. ”

When he came to the forensic office, Fang Shuyu informed him of the results of the toxicological test and the possible source of the poison, and determined that the deceased had no other injuries on his body except for the needle hole left by the syringe on his neck.

In the blood, there are residual tranquilizers.

Combined with the trajectory of the footprints, it can be judged that the murderer launched the attack from behind, which instantly made the victim unconscious.

"Plant alkaloids? Which plant alkaloid? Chen Yi asked.

Fang Shuyu shook his head: "It's not clear for the time being, the concentration is very high." ”

(End of chapter)