Without looking through the photos of the scene again, Xiao Ran had already imprinted the situation of the deceased in the '7.2' case in his mind.

Looking back at the wound on the deceased's body, it can be judged that the knife used by the murderer to open the limb was not so sharp. The autopsy report also stated that it was to first cut the surface membrane of muscle, fat, and visceral layers.

When the corpse was completely opened, the chest and abdomen were scratched and the internal organs were destroyed.

From this perspective, does this mean that the murderer was a completely novice before the case was committed. Although he seemed to have been planning for a long time, when he actually implemented it, he was stimulated by a strong visual impact.

If this is true, perhaps the murderer has not been completely perverted, but judging from his behavior, it seems to have some purpose and compulsiveness, as if he is trying hard to force himself to move closer to the extremely vicious images in the movie.

Suppose the murderer has nothing to do with the deceased's family.

So is the murderer trying so hard to control himself to commit cruel behavior, simply being attracted by the image of sin, or just to prove something, in order to gain inner pleasure?

...

After leaving the scene of the '7.2' case, Xiao Ran and the others went to the detention center and sent the bag of toilet water mixed with unknown residue to the technical center.

As for whether the result can be detected, I can only ask for luck.

After a simple lunch at a small restaurant on the side of the road, the group came to the detention center and showed the interrogation certificate. Shortly after they arrived at the designated interrogation room, a man with a dull expression and greasy expression was brought in by two policemen.

He is Cheng Yuguo, the husband of the deceased Li Lu, an innocent unlucky guy.

Although he knew in his heart that Cheng Yuguo had not killed his wife, Xiao Ran still couldn't do anything for the time being, after all, he had no evidence in his hands.

According to normal logic, Cheng Yu Kingdom is still the number one suspect. Only by finding the real murderer as soon as possible can Cheng Yu Kingdom be innocent. Now, Cheng Yu Kingdom has to be wronged for a while.

Perhaps because of the many times he was arraigned, Cheng Yuguo was just taken into the interrogation room, and before he could sit down, he shouted earnestly to Xiao Ran and the others: "I didn't kill anyone. You believe me. My wife was really not killed by me, really not..."

Before he finished speaking, Cheng Yuguo started crying on the verge of collapse.

Xiao Ran knew that Cheng Yuguo was not the murderer, so his words naturally would not be so harsh. He pulled out a cigarette and asked the police officers in the isolation fence to hand it to Cheng Yuguo, who was unshaven. After Cheng Yuguo's mood gradually calmed down, he started a conversation.

"Cheng Yuguo, at around 0 pm on July 2, when you leave home, are you really walking on the road?"

Cheng Yuguo suddenly raised his head, Xiao Ran's tone and attitude made him feel a little uncomfortable. During the interrogation before, the interrogator never whispered like this at the beginning, and no one believed that he was really wandering on the road.

When the blank time was mentioned, the person in charge of the interrogation interrupted his words and warned him not to continue quibbling.

Looking at the three interrogators in front of him who had never seen before and were particularly young, Cheng Yuguo had a small hope in his eyes.

He nodded vigorously and shouted, "Really, I was really walking around the road. At that time, I was in a mess. I didn't know why I walked for so long, and I was about to go to the Internet cafe."

"You have been walking on the road for more than half an hour?" Xiao Ran emphasized his tone.

It was raining in the sky at that time. If Cheng Yuguo had been walking on the road for so long, he would have been wet. However, according to the photos captured by Xiao Ran, when Cheng Yuguo entered the Internet cafe, most of the clothes he had on his body were still dry.

Cheng Yuguo was stunned for a moment, then shook his head and said, "No, I'm walking and stopping. It rained heavily for a while, so I hid under the eaves of other people's houses to smoke... At that time, I was thinking that I couldn't go on a daze like that, and I planned to find a good job next month..."

As he spoke, Cheng Yuguo burst into tears again: "I...I have nothing now..."

Xiao Ran knocked on the table, kept his emotions in his heart, and continued to ask, "Okay, then I'll ask you, before you left home, where did you and your wife Li Lu quarrel at your house?"

"Where are you quarreling?... In the bedroom on the second floor of our house." Cheng Yuguo thought for a while and said.

"What did you say to Li Lu before you are about to leave home? Before you go out, was Li Lu upstairs or downstairs?"

"I... seemed to mean that if I didn't let me play at home, I would go out to play. Then she asked me to get out of here."

Cheng Yuguo thought for a while before he said intermittently: "When I went out, she seemed to have gone downstairs... I didn't remember it very clearly. She should have gone downstairs. There was something wrong with the door lock in our house. The groove that closed the door was broken and you had to use your hands to close it."

Xiao Ran's eyes moved slightly. If the murderer had planned a long time ago and had been waiting for an opportunity before, then Cheng Yuguo should have been taken into consideration by the murderer when he went out. Moreover, Li Lu died on the first floor, it can be inferred that Li Lu should have come down from the upper floor and planned to close the door.

So at this time, from the time the deceased Li Lu went downstairs to the murderer breaking into the door, the time when Cheng Yuguo left should be very close.

Of course, it is not ruled out that the murderer happened to pass by. The victim Li Lu only remembered to close the door after Cheng Yuguo left for a while. The two happened to collide, causing the murderer to have a sudden idea.

But at the remote location where Cheng Yuguo and the others lived, at around 0 o'clock in the evening, who would walk past their doorstep except the neighbors?

If the murderer really lives around Chengyu Country and his family, the task force would not have noticed the problem.

Xiao Ran secretly noticed that he recorded it in his notebook. After returning to the Chengdong Branch, he would read all the visit records around the crime scene.

However, if it is the first situation, the murderer broke into Cheng Yuguo's house as soon as he left, and Cheng Yuguo's wandering around was not fast...

Xiao Ran immediately asked: "After you left home, did you hear anything unusual? Have you seen people around your home who behave strangely?"

"abnormal?"

Cheng Yuguo thought for a while and shook his head and said, "No, I didn't hear anything after I left. All I heard was the sound of rain. And I didn't notice anyone next to my house at that time. I really didn't see anyone. I didn't meet anyone all the way."

Xiao Ran nodded without saying much.

He had no hope in his heart. After all, there were all kinds of roads and alleys around Cheng Yu Country's residence, and there was no street light at night. He hid at the intersection and watched Cheng Yu Country's family. If it weren't for a coincidence, ordinary people wouldn't be able to notice it.

After coming out of the detention center, Xiao Ran looked at the gloomy sky above his head. It has to be said that the murderer this time was indeed cunning and had a strong sense of anti-reconnaissance.

When I returned to the Chengdong Branch again, it was already three in the afternoon.
Chapter completed!