Qin Yumei happened to meet Liu Maocai who was patrolling near the abandoned factory on the way to the abandoned factory, Qin Yumei told Liu Maocai that Zhu Hong came to the abandoned factory at night and did not return overnight, Liu Maocai After knowing about it, he decided to accompany Qin Yumei into the factory to see, after all, Qin Yumei is a woman, and the factory is also abandoned, whether there are some unclean things in it, it is unknown, so the two of them entered the abandoned factory together.

After searching the abandoned factory, they soon found the barn that had been locked from the outside, and then the next scene began.

When Xu Lang heard this, he pondered for a moment and asked, "You mean, you happened to meet Liu Maocai when you went to the abandoned factory to find Zhu Hongfang?" ”

Qin Yumei nodded and said, "Yes, thanks to Captain Liu, if it weren't for him, I wouldn't know if I would have been able to find my house, and even if I did, I wouldn't know what to do if the door was locked?" ”

Hearing this, Xu Lang did not respond to Qin Yumei, and continued to ask: "The two of you searched the abandoned factory together, who found the warehouse?" ”

"Barn? What barn? Qin Yumei looked at Xu Lang with a puzzled expression.

Xu Lang was a little speechless, so he had to explain: "It's the house that locks Zhu Hongfang." ”

"Oh, you said it was the house, Captain Liu found it first, what's wrong?" Hearing Xu Lang's words, Qin Yumei came back to her senses and said slowly.

"Then the one who called the door outside first was also Liu Maocai?" Xu Lang asked.

"Yes, I originally looked at the locked door and thought it was just an abandoned warehouse, so I didn't think much about it, but after Captain Liu saw the locked warehouse, he felt very strange, so he went to call the door."

After listening to Qin Yumei's story, not only did Xu Lang feel that this Liu Maocai was very suspicious, but Ning Yanran, who was sitting on the side and was in charge of recording, also felt that this Liu Maocai was becoming more and more suspicious, but all this seemed to have nothing to do with Liu Maocai.

First, Liu Maocai was only met by chance when Qin Yumei went to the abandoned factory to find Zhu Hongfang, if Qin Yumei didn't go to the abandoned factory, wouldn't she meet Liu Maocai, but meet someone else?

Second, although Liu Maocai did not follow the common sense order of opening the door first and calling the door later, this does not mean anything.

Third, after rescuing Zhu Hongfang and Yang Xuewenzhi and discovering Shen Jun's body, the person who chose to call the police was Liu Maocai, if all this had something to do with Du Liumaocai, then why did he call the police?

finally found a little clue and found a breakthrough, but after questioning Qin Yumei, he did find a lot of suspicions and coincidences in Liu Maocai, but there was no way to prove that Liu Maocai had anything to do with this murder.

After Xu Lang finished the questioning, he left the interrogation room, returned to the office area of the second criminal investigation team, and began to smoke with his head bored, he went through all the details of the whole case in his mind, but the more he thought about it, the more he felt that something was wrong, and it seemed that there were a lot of coincidences.

First, Liu Mao is the security captain of the area at the scene of the crime, responsible for patrolling, it stands to reason that each patrol should be two or more people patrolling together, so that if something happens, they can take care of each other, but when Qin Yumei went to the abandoned factory to look for Zhu Hongfang, she happened to meet Liu Maocai, Liu Maocai patrolled, Qin Yumei was looking for someone, it was originally an unrelated matter, but the two of them happened to meet at the gate of the abandoned factory, and it didn't feel like anything at the time, but now I think about it, Liu Maocai seemed to be waiting for Qin Yumei.

Second, it is the locked warehouse, that is, the warehouse where Zhu Hong put the three of them, it is normal to have a warehouse in the factory, no matter which factory has it, even if the factory is abandoned, it is normal for the door to be locked, but why did Liu Mao decide that there was a problem with that warehouse at a glance? It's as if he knew there were people inside.

Third, it was Liu Maocai's order of knocking on the door first and then opening the door, as if he had long known that this warehouse was a two-way secret room.

Fourth, it was also when Xu Lang was smoking that he saw the investigation files of Zhu Hongfang, Yang Xuewen and the deceased Shen Jun, on the file, Xu Lang inadvertently found a detail that was originally very inconspicuous, that is, in this case, the only person who knew Zhu Hongfang, Yang Xuewen, Shen Jun and Zhu Hongfang's wife Qin Yumei was only this Liu Maocai, because he was the security captain of this area, he often patrolled this area, and everyone looked down and didn't look up.

Especially this fourth point, Liu Maocai knew Zhu Hongfang and the three of them, which was inadvertently discovered by the police when they were investigating these three people, it was nothing, but when Liu Maocai called the police and was taken to the Public Security Bureau for questioning, he didn't mention that he knew Zhu Hongfang and the three of them, especially, when he saw Shen Jun's body, the police asked them if they knew the deceased, but Liu Maocai said no, if it wasn't for Zhu Hongfang and Yang Xuewen to prove that they didn't kill anyone, And the other party killed someone and told the police that this person's name was Shen Jun, and it was estimated that it would take some time for the identity information of the deceased to be clarified.

It can be seen that the suspicion of this Liu Maocai is really getting bigger and bigger.

It has been a week since the incident, Xu Lang was approached by Ning Yanran two days after the incident, Xu Lang only knew about it, the case seems very simple, it seems that the murderer is either Zhu Hongfang or Yang Xuewen, or that both of them are murderers, but they can't find the motive for the murder, and there are still many doubts in the case, and they haven't figured it out for a while, so naturally the case can't be closed easily.

Since he thinks that this Liu Mao is suspected of committing a major crime, and when the police summoned him to the Public Security Bureau for questioning, he was not in S City, which made him more and more suspicious, Xu Lang found Ning Yanran after smoking a cigarette and asked her to go to Liu Maocai's house with him to see if Liu Maocai was at home, if he was at home, he could just ask him about the situation at that time.

Ning Yanran thought for a while, looked at Xu Lang and asked, "Do you think this Liu Mao is very suspicious of committing a crime?" ”

Xu Lang nodded and didn't say anything.

Seeing that Xu Lang recognized this, Ning Yanran continued to ask: "Then let's go to Liu Maocai now, will we startle the snake?" ”

Xu Lang looked at Ning Yanran, and suddenly grinned: "We went to Liu Maocai just to ask him about what happened at that time, if he has nothing to do with this case, what does it matter?" ”

"But what if he has anything to do with this case?" Ning Yanran continued to ask.

"We only suspect that he has something to do with this case now, but there's no evidence, right?" Xu Lang said slowly.

Ning Yanran nodded, she knew this very well in her heart, without evidence, it could not be proved that this case was related to Liu Maocai.

"If Liu Maocai is really related to this case, and even Shen Jun was killed by him, then we will definitely disrupt his hands and feet and let him show his flaws, as long as he shows his flaws, then we are not far from finding evidence?" Xu Lang induced earnestly.

"yes, it seems like that's the case, let's go, hurry up."

After hearing Xu Lang say this, Ning Yanran felt that what Xu Lang said was very right, and then she not only agreed to go with Xu Lang to meet this Liu Maocai for a while, but she was also a little impatient, so she pulled Xu Lang out with her.

Out of the Public Security Bureau, Xu Lang and Ning Yanran found the unit where Liu Maocai worked according to the home address left by Liu Maocai on the interrogation record, Xu Lang inquired, only then did he know that Liu Maocai did not come to work today, as for why he did not come to work, colleagues in the security team told Xu Lang that Liu Maocai seemed to be sick, so he did not come to work.

After Xu Lang listened, he inquired about Liu Maocai's home address, and then the two of them found Liu Maocai's home.

Liu Maocai's home is not far from the abandoned factory, and Liu Maocai's house is not the kind of community that is often seen now, but has the characteristics of a combination of urban and rural areas, with a two-story small western-style building and a small courtyard in front of the door.

When Xu Lang and Ning Yanran came to Liu Maocai's house, they saw that the door was locked, and there was indeed no one inside, after seeing this scene, Ning Yanran and Xu Lang were very disappointed, so they planned to go back, and after Liu Maocai came back tomorrow, they decided how to deal with this matter, but since Xu Lang found Liu Maocai's home, he felt that Liu Maocai was suspicious, although Liu Maocai was not at home now, Xu Lang was unwilling, so he got out of the car and came to Liu Maocai's door, looking at the situation in the courtyard through a wall that was not too high.

The house is ordinary, nothing to look at, and the yard is cleaned up, and at a glance, I know that Liu Maocai should be a person who likes to be clean and tidy, which is similar to his usual habits, but just when Xu Lang was about to retract his gaze, he found a strange thing in the corner of the yard.

Strictly speaking, it is not a thing, but two wooden planks stacked together, if there are a few planks in the yard, it is not unusual, but what caught Xu Lang's attention is that the appearance of the two planks is very much like a door, and there are a few nails on top of the plank, which immediately attracted Xu Lang's attention.

Before seeing these wooden boards, Xu Lang had never figured out how the two-way secret room was formed, but now seeing these two wooden boards, Xu Lang suddenly understood, he finally figured out how the two-way secret room was formed, what happened to the nail eyes found at the scene, and how the fourth person who had always existed only in the speculation entered the secret room to kill people, and how he came out after killing people.

Ning Yanran, who was originally sitting in the car waiting for Xu Lang, saw Xu Lang standing in front of Liu Maocai's door and didn't leave, as if she had found something, so she got out of the car, came to Xu Lang's side, and also stood on tiptoe and looked inside, but she looked around and still didn't find anything wrong, Ning Yanran turned her head to look at Xu Lang and asked, "What are you looking at?" ”

Hearing Ning Yanran's words, Xu Lang stretched out his finger and pointed to the wooden plank placed against the wall in the courtyard.

Ning Yanran looked in the direction of Xu Lang's finger, she didn't see anything else except the two wooden planks stacked together, so Ning Yanran looked carefully, but she still didn't see any tricks, so she asked, "Isn't that a wooden plank?" What's so nice about this? ”

Xu Lang smiled mysteriously, turned his head to look at Ning Yanran, and said with a smile: "Call someone to come over and send these two planks to the scene of the crime, in addition, you immediately send someone to find Liu Maocai to prevent him from escaping, if he runs away, there is no way to solve this case." ”

Hearing Xu Lang say this, Ning Yanran first looked at Xu Lang with a puzzled expression, and then looked at the wooden planks in the yard, she still didn't see anything, and wanted to ask Xu Lang what was going on, but she opened her mouth, and finally didn't ask anything, she took out her mobile phone and dialed the internal phone of the second criminal investigation team, and said Xu Lang's request, focusing on the requirements, so that they must find Liu Maocai.

Just when Ning Yanran had just finished making the phone and was still holding the phone in her hand, a man walked over.

The person who came was none other than Liu Maocai, Liu Maocai looked at Xu Lang and Ning Yanran standing in front of his house, he was stunned for a moment, a trace of uneasiness flashed in his eyes, and then a smile appeared on his face, and he greeted Ning Yanran very naturally.

"Officer Ning, why did you come to me?"

Ning Yanran just called the people of the second criminal investigation team to find Liu Maocai, but she didn't expect that before a minute, Liu Maocai appeared by herself, which made Ning Yanran very surprised, when she saw Liu Maocai, her face was also stunned, and then, she said with a smile: "We are here to ask you about the situation on the day of the crime." ”

"Oh, that's right."

As he spoke, Liu Maocai took out the key from his pocket and opened the gate, bringing Ning Yanran and Xu Lang into the courtyard.

After Xu Lang walked in, Liu Mao first looked at Ning Yanran, then looked at Xu Lang quickly, and finally looked at Ning Yanran and asked, "Officer Ning, who is this?" ”

"This is Xu Lang, a criminal investigation adviser of the Public Security Bureau." Ning Yanran introduced softly.

"Xu Lang?"

When Liu Maocai heard the name Xu Lang, he first felt a little familiar, as if he had heard it somewhere, and then, he knew where he had heard this name, in recent months, the Public Security Bureau has cracked several cases in a row, especially after the case of hiding the body in the public toilet on Caihua Road was solved, Xu Lang was mentioned in relevant reports.

After knowing who Xu Lang was, Liu Maocai's original smile suddenly froze on his face, especially when he saw that Xu Lang had been staring at the wooden board leaning against the wall after entering the courtyard, Liu Maocai's face changed for a while.

"I've got something left outside, I'll look for it, and you can take a look in the yard first."

After Liu Mao finished saying this, he was about to leave the courtyard, but before he could take a step, he was blocked by Ning Yanran and said, "Where are you going?" We are here to ask you a few questions, and we will leave after asking, and we will not delay you much. ”

Although Ning Yanran didn't know why Xu Lang wanted her to send someone to find Liu Maocai, but just now Liu Maocai appeared, after entering the courtyard and hearing the name Xu Lang, the change in facial expression, Ning Yanran saw all this in her eyes, she was not a fool, she naturally saw that this Liu Maocai had a problem, there was a big problem, and she also understood at this time what Xu Lang meant when he left the Public Security Bureau.

However, something unexpected happened to Ning Yanran, after Ning Yanran said those words, Liu Mao not only did not stop, but instead ran towards the door around Ning Yanran.

Ning Yanran was stunned for a moment, and then chased after Liu Maocai, shouting as she chased: "Stop, you stop for me." ”

Xu Lang, who had already walked in front of the two planks, shook his head helplessly after hearing Ning Yanran shout this sentence, and muttered: "Ning Yanran, Ning Yanran, have you watched too many police and gangster movies, what are you shouting, chase it directly, catch up and knock him down with a punch, and he won't stand still with handcuffs, really." ”

Although Xu Lang said so, after finding out that Liu Maocai had escaped, he also turned around and chased after the door.

Xu Langcai chased to the door, and stopped, because Liu Maocai had been caught up by Ning Yanran, Ning Yanran not only caught up with Liu Maocai, but also fell over the shoulder and threw Liu Maocai to the ground, Xu Lang looked at Liu Maocai, who was stunned and his hands were handcuffed, Xu Lang shook his head, turned around and returned to the yard, and continued to look at the two planks.

Not long after, other members of the second criminal investigation team arrived at the scene with the following criminal police, they first escorted Liu Maocai, who was handcuffed, into the police car, and then walked into the courtyard of Liu Maocai's house, and then according to Xu Lang's request, the two door panels were loaded into the car and brought to the scene of the murder.

After a group of people came to the scene of the murder again, Xu Lang asked people to lift the two door panels into the warehouse, and then Xu Lang asked Ning Yanran to bring Zhu Hongfang and Yang Xuewen, who were locked up in the detention center, to the scene, and he wanted to do an experiment, because Xu Lang already knew how the murderer of Shen Jun committed the crime.

When Xu Lang and Ning Yanran went to find Liu Maocai, it was already more than five o'clock in the afternoon, and after this toss, it was already more than seven o'clock in the evening, and it was a little earlier than in the summer when it was dark in autumn, and at this time, it was already dark outside, and it was pitch black in this abandoned factory, and nothing could be seen clearly.

In order to help Xu Lang recreate the situation on the day of the crime, Ning Yanran had several spotlights brought in, which were connected to the car parked outside.

Under the strong dazzling lights, the scene was bright, and Liu Maocai, who was taken down from the police car, turned pale after seeing this battle, he seemed to know that what he did was found by the police, however, at this time, he still had a trace of luck, he wanted to see what Xu Lang could do with such a big battle, if Xu Lang couldn't crack the two-way secret room, then the police would have no evidence to prove that this matter had anything to do with him.

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