Bai Song had never been to the bank to retrieve anything. He had seen the bank statements in Li's case, so he understood the situation. He also knew that it was very likely that he would work for a long time and get nothing in return. But once this idea came up, it could not be shaken off.
In the end, Bai Song convinced Wang Xu, and together they reported this idea to Wei.
The case handling team has actually had a lot less work recently. Most of the work the office can do in this case is basic work, and there has been little progress after taking dozens of statements. Therefore, Chief Wei agreed to Bai Song's request and divided into two groups to start investigating the bank transactions of some specific people.
It was almost two o'clock in the afternoon when the video was retrieved. Wang Xu said he would treat Bai Song to some authentic mutton soup. The two changed into casual clothes in the car and went to a mutton soup restaurant.
According to Wang Xu, this store has a history of more than 40 years. Wang Xu's master drank mutton soup here when he was a child, and it is very authentic.
A big bowl costs ten yuan, and you can add as much soup, sesame paste, and chili as you want. A sesame seed bun costs eighty cents, and there are assorted vegetarian dishes and stewed beef head, which are authentic halal dishes.
A sip of the hot soup with sesame paste and a hint of red oil dispelled most of the coldness of the day.
Bai Song stirred the mutton soup with a spoon. The rich soup formed a small vortex as the spoon stirred it. "Brother Xu, do you think it is possible that these two people did not run away at all?"
"Didn't run away?" Wang Xu was a little confused.
"We have ruled out many impossibilities. Can we understand it this way? These two people have other residences in Daguangli Community. After they killed someone, they went to the bungalow opposite to throw away some masks and other things, changed their clothes, and then returned to their residence in Daguangli Community, waiting for the police to finish their investigation before coming out?" Bai Song said: "As long as they do not leave this bungalow and Daguangli Community, the surveillance video will basically not capture them. After all, there are no cameras between these two places."
"Hmm... it's possible what you said." Wang Xu seemed to be thinking about something. "Avoiding surveillance video is now a basic skill for criminal suspects. There are so many movies nowadays... The cameras in our station are far inferior. It would be better if they were like the ones in Sanlin Road Police Station."
"Then shall we go to the scene again later?" Bai Song asked.
"Okay." Wang Xu nodded.
After dinner, the two returned to the Daguangli community and walked to the door of the house where Sun died. The door was still locked, and it was obvious that no one had been there in days.
"First of all, judging from the marks on the roof, the suspect entered the house from the rooftop and killed by poisoning. Preliminary analysis shows that the suspect hid first and then appeared after the victim smelled and drank the water containing hydrogen cyanide. He then had a quarrel with the victim, who later fell to the ground due to poisoning. The two men opened the door and fled, taking the container with them." Wang Xu said that this is the most reasonable explanation at present.
"Well, there are a few questions," Wang Xu analyzed to himself. "First, there were no signs of fighting at the scene, but there were signs of quarreling. Logically, Sun should know these two people. Second, if they came down from upstairs, where was the fixed point? And how did they remove the rope?"
"Is there such a possibility?" Bai Song said, "Of these two people, only one actually knew Sun, and we don't know him. There was actually only one person who entered the house, and it was probably the shorter one. The taller one didn't actually come in. He used his body to hold the rope on the roof. He waited for the shorter one to succeed in committing the crime, then packed up his things and left together."
"Hmm?" Wang Xu said, "That explains the rope problem upstairs. Then why did the people upstairs wait until the person downstairs succeeded before leaving with him? If he stayed on the roof for too long, wouldn't he be afraid of being discovered?"
"Few people go up to this kind of floor. If the person downstairs succeeded quickly, it's not impossible."
"If what you said is true, then among these two people, at least one must know Sun and be relatively familiar with him. Otherwise, if someone suddenly breaks into someone's house, even if he is a friend, there will probably be a fight, right?" Wang Xu said.
"If you say so, it's not enough to be familiar with them. They have to be relatives and friends. Imagine that one day you were at home and you didn't open the door. Suddenly you saw me appear in your house. You would be scared to death, right? I guess you would beat me out..." Bai Song complained.
"There are indeed many suspicious points here. Let's go downstairs." Wang Xu said.
"Well, let's recreate the crime scene. After we went downstairs, the neighbor had already opened the door and saw Sun lying on the ground. At this time, you and I had already gone downstairs and walked out together. Then the neighbor reacted and looked out the window and saw us walking out."
Bai Song stood in the open space in Daguangli and looked up at the windows on the sixth floor. There were many trees in this old community, so it was not easy to see the people below from the sixth floor. This was only in December. If it happened in June or July, the trees were lush and the people below could not be seen at all.
"We have one and a half minutes to get down here. The only place where the neighbors can see us is this area," Bai Song pointed to a small area around him. If we walked any further, we would be out of sight. The back and sides would be hard to see from the sixth floor. We would have to stick our heads out. But the neighbors didn't stick their heads out. They could see us directly from the upper floors.
"Based on the analysis of DNA, height, footprints, etc., the two suspects are very consistent with the physical conditions of the two people identified by the neighbors. We assume that these two people are the murderers. Then, it is not right for them to walk from the building to here." Bai Song gestured: "From the door of this unit, if you want to go to the bungalow opposite, you don't need to walk this way, just go straight. Since they didn't go straight, but turned right and walked here, it means that when they came out, they didn't rush to the bungalow to change clothes first."
"Maybe they are not familiar with this area?" Wang Xu retorted.
"If they were debt collectors, they would have killed someone and stabbed Sun to death. I believe what you said, but these two people acted carefully and planned before they acted. They must have studied the surrounding surveillance in advance. How could they not be familiar with it?"
"Yeah, that makes sense." Wang Xu nodded. "If that's the case, then it means that these two people didn't go to the bungalow right away?"
"No, they must have gone to the bungalow and changed their clothes there. I asked Zheng Yanwu, and the time period he mentioned was very close to the time when the murder occurred, so these two people must have changed their clothes immediately." Bai Song said, "I have a theory."
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