Bao Sheng opened the survey report and said: "The doors and windows at the scene are intact, but the door is not an anti-theft lock. With a little mastery of skills, you can open it with a card. However, there is no special substance residue on the lock, so it cannot be ruled out that the door is open.
Wiped down afterwards.”
"Let me interject." Yan Yishuai said, "According to Qiu Guowang, the security guard on the night shift, Wang Hongan returned to the factory that night and told him that if anyone came to see him, just put them in. It can be seen that Wang Hongan had an appointment.
Man, but he is not destined to die. This man will definitely come."
"The security guards in both shifts did not see the visitor. There are two possibilities. One is that the person did not come at all. The other is that he came and did not enter through the main entrance of the factory. I personally prefer the second option, and because
Someone will come, but Wang Hongan didn't lock the door at all."
"I've checked the fence, but it's very strange." Bao Sheng said, "There are two concave spots under the fence in the backyard, and there are two indentations on both sides of the wall. It should be that something like a ladder was left. The top of the wall was extracted.
Half a shoe print, size 43 sneakers. Outside the wall is an asphalt road, and there is a relatively new car mark on the roadside, which is a minivan."
"Doesn't this mean that the murderer came in over the wall? Is there anything strange about it?" Lu Dongming asked.
"If the murderer climbed over the wall to enter and exit, there are two possibilities. One is that the ladder was left in place and returned the same way after committing the crime. In this way, the traces left by the ladder should be one inside and two outside. The second possibility is that after entering the courtyard,
Finally, hide the ladder temporarily and set it up again when walking. If this is the case, it is two inside and two outside."
Bao Sheng used a projector to show the photo: "Look, the ladder prints are one on the inside and one on the outside. The shoe prints are only half, and they go from the inside to the outside. Judging from these marks, it can only be one-way traffic."
"
"Brother Bao said that, it's quite strange." Duanmo frowned slightly, "Are there no shoe prints on the ground inside the wall?"
"No," Bao Sheng shook his head, "This is also very strange."
"Could it be that someone from their factory left it behind, not the murderer at all?" Lu Dongming asked.
Jiang Muyang blinked: "Leave the door open and climb over the wall. Could it be that you are stealing things? And you also stole the ladder by the way?"
"Except for Wang Hong'an, there are only four security guards still working in the factory now. If someone really wants to steal something, it can only be the security guards. The surveillance cameras in the factory have been removed a long time ago. Is it necessary to climb over the wall?" Yan Yishuai sneered.
"To avoid people in the same class." Jiang Muyang said, "After all, it's stealing, it can't be done blatantly, right?"
"This is even more wrong." Yan Yishuai retorted, "If it is stealing during working hours, someone climbs out of the wall, puts things away, and comes back through the door. How about he becomes a living person? Let's talk about stealing after working hours. This person
Once you go in and disappear, how can you explain it to the two people in the opposite class? So this idea is illogical."
"They are now lax in their management. They sneak in through the gate while no one is paying attention, and then climb out over the wall. No one can find out... right?" Jiang Muyang's voice became softer as he spoke, and he himself felt that this reason was untenable.
"Let me imagine." Lu Dongming rolled up his sleeves, as if he was about to make an impassioned speech, "Among the two security guards on duty that night, the one named Sanhao was not in the factory that night, and Wang Hongan came here.
At that time, only Qiu Guowang was there, and later he was asked to open the door of the power distribution room. The power distribution room was behind the factory building. During the period when he went to push the switch, no one was guarding the door of the factory. The murderer could use this time to enter and find someone at will.
He hid somewhere. In the middle of the night, he came out, killed Wang Hongan, and then climbed over the wall and escaped."
"There are several questions here." Lu Wuchuan said, "First, how did the murderer know that there was only one security guard there at that time? Second, how did he expect that Qiu Guowang would be called away? Third, did the ladder belong to the factory or the murderer?
Did he bring it himself? Two more questions arise from this question. If the ladder comes from the factory, how would the murderer know where it is? If the murderer brought it himself, then why did he bring the ladder?"
"The first two questions are easy to explain." Yan Yishuai said, "When Wang Hongan returned to the factory, the murderer followed him. He observed that there was no one in the security room outside and took the opportunity to sneak in. As for the third question...
"
He paused before continuing: "I don't think it's realistic for the murderer to go out with a ladder. Although Luge Wood Industry is not a big factory, it is still called a factory, and there are several factories and bungalows.
If he is not familiar with it, he really may not know where the ladder is. Unless he is very familiar with the situation in the factory."
Jiang Muyang said: "Wang Hong'an drove a truck to the factory. If the murderer wanted to follow him, he must have a car. Maybe he had a ladder in the car. There could be no one in the security room all the time. He went in carrying the ladder.
In order to escape over the wall, there was only a set of ladder marks left on the wall."
"Although this explanation makes sense, it still feels a bit too far-fetched." Lu Dongming said, "Yangzhuang Development Zone is mostly factories, and there are not many pedestrians and vehicles on the road at night. Luge Wood Industry is relatively close to the side, and outside
It's a wasteland. The murderer can intercept and kill him in a secluded road. There is no need to follow him to the factory and wait until midnight to start his attack. After all, there are two security guards on duty in the factory. If he accidentally makes some noise, he can't just let someone kill him.
It’s blocked.”
"Do you understand the sense of ritual?" Yan Yishuai said, "If the murderer really thought like you do, those who died before would not have been so miserable."
"What the commander said makes sense." Lu Wuchuan agreed. "What the murderer wants is for the victim to die in the same way to satisfy his desire for revenge."
"Treat others in their own way. Could it be that several of the deceased had killed others in the same way?" Jiang Muyang blurted out.
Lu Wuchuan glanced at him sideways: "This is a good idea. You can go through all the unsolved mysteries and unsolved cases in the past thirty years to see if there are any similar modus operandi."
Jiang Muyang touched his head: "Let's forget it. In thirty years, I'm afraid I won't be able to finish it until I retire."
"Don't let Xie Ju hear what you said, otherwise your kid will suffer." Yan Yishuai said.
"Why?" Jiang Muyang didn't know why.
Yan Yishuai snorted coldly: "If you can't finish it until you retire, how many unsolved cases will there be in the past thirty years? Do you think our bureau's 97% case detection rate is just based on words?"
Jiang Muyang curled his lips: "You can just say that there aren't that many unsolved cases, and it won't be tiring to make such a big detour."
"Blame me, blame me, forget that your IQ is often not online."
Yan Yishuai said this with a serious face, which caused everyone to burst into laughter. The dull and depressing atmosphere at the conference table was somewhat relieved.
After laughing, back to business, Lu Wuchuan asked Bao Sheng to continue introducing the on-site investigation.