After they went out, Lin Yao's mood didn't fluctuate much.

"In my experience, the killer is not among them."

Lin Yao also did not contain the lake, and said directly to Yao Jin.

"Well, indeed, look at the way they look and don't lie."

Yao Jin also nodded in confirmation.

Then, he couldn't help but say:

"So where do we start next and investigate the deceased's relationships?"

"I've also read the clues to this case, and I feel that there is a high possibility of vendetta."

After hearing this, Lin Yao did not speak immediately, but looked ahead and pondered for a moment before speaking:

"There is no need to investigate interpersonal relationships for the time being, Captain Zhang has questioned the employees in the factory in the past few days, and they have not found any enemies of the deceased."

"That's right..... Then you say, what are we going to do next?"

Yao Jin nodded slightly, and then said.

"I think.... Our breakthrough should be that the deceased was at that time, why did he go back to the roof, who made him an appointment, and this person must have a lot to do with the matter."

Lin Yao stared ahead and spoke.

Yao Jin also frowned and said:

"yes, for no reason, he couldn't have run to the top of the building by himself. And the murderer lay in ambush on the roof of the building and killed him."

"It's unreasonable, and I think someone called him up."

"But... How do we find out? By the way, Captain Zhang, did they retrieve the mobile phone records of the deceased?"

After finishing speaking, Yao Jin looked at Lin Yao again and asked.

Lin Yao shook his head and said:

"There are no call logs on my phone, so I don't know if it was deleted by the murderer or for some reason."

"But we can arrange for someone to investigate with the communication service provider, and you can arrange it later."

"Okay, no problem."

Yao Jin immediately nodded in agreement.

"Let's go first."

Then, Lin Yao stood up directly from the chair and walked out.

"Huh? Brother Yao, have you figured out where to go?"

Yao Jin saw Lin Yao suddenly get up, and couldn't help but ask suspiciously.

"Go to the factory where the incident happened."

Lin Yao said and walked out of the door of the room.

"Okay!"

Yao Jin immediately agreed and hurriedly followed.

After going out, Yao Jin drove directly to the factory gate.

As soon as Lin Yao got out of the car, the security guard in the guard room immediately greeted him.

He already knew Lin Yao, so he quickly took out two cigarettes and handed them to Lin Yao and Yao Jin.

"Comrade policeman, you have worked so hard, here you go again!"

The security guards looked at Lin Yao and said with a smile.

Lin Yao nodded, then looked at the security guard.

This security guard looks like he is about forty years old, of medium height, with a slightly fat figure, and he looks a little honest.

"Let's go, Master Wang, let's go in first."

Lin Yao lit the cigarette, then pointed to his guard room and said.

"Hey, good."

The security guard hurriedly agreed, and then walked in with Lin Yao and the others.

"Comrade policeman, drink water!"

After entering the guard's room, the security guard Master Wang hurriedly picked up his green kettle, then took two disposable water cups from the side and poured two cups of hot water into it. ….

"Thank you."

Lin Yao and the two took it, and then took a sip.

"Master Wang, have you been on duty here for the past few days?"

Lin Yao looked at the room, and then asked.

"Yes, I've been here on duty since the accident."

Master Wang took a few big sips from his teacup, then nodded and said

。

"You're all on duty yourself? How many security guards do you have in your factory?"

Lin Yao asked him with some surprise in his tone.

"There are four security guards in the factory, but haven't all the workers in the factory gone back since the accident, and the factory has not started."

"Then I was on duty on the day of the accident, so I was left alone here, so that you can come over to investigate and ask about the situation, and I can answer you, which is also convenient."

Master Wang explained to Lin Yao.

Lin Yao nodded slightly and said:

"Oh..... I see. You've had a hard time."

Master Wang shook his head and smiled, and said:

"Hey! What's so hard, I just sit in the guard room and look at my phone every day, and it's nothing."

Then, Lin Yao's expression became serious, looked at him and asked:

"Master Wang, on the night of the incident, were you sitting inside the guard room, or were you patrolling outside?"

Master Wang was stunned for a moment, and then immediately replied:

"I'm sitting in the guard's room."

"Because the workers were working overtime in the workshop at that time, and no one left, I had nothing to patrol."

"Hmm."

After hearing this, Lin Yao nodded slightly, and then continued to ask:

"By the way, Master Wang, is there any monitoring in the workshop?"

"Yes, there is surveillance."

Master Wang immediately nodded and replied.

"Where is that, take us to see it."

Lin Yao stood up directly from his seat and said.

"This ......."

Master Wang hesitated slightly, and then said to Lin Yao,

"I can't show you this, you have to call Xiao Cheng, who is in charge of monitoring in the factory."

"But after the incident, your people have already seen this surveillance, do you still need to watch it?"

After finishing speaking, Master Wang looked at Lin Yao.

Lin Yao nodded, and then said:

"Then please call this Xiao Cheng over, we still have to take a look."

"That's... Okay, you wait a minute."

Master Wang saw that Lin Yao insisted on seeing it.

So he nodded in agreement, then took his phone out of his pocket and made a call.

"Hey? Xiao Cheng, where are you now? What about sleeping at home? Don't sleep, come to the factory."

"The police comrades who came to check on the eucalyptus want to see the monitoring of the workshop, yes, it's now, hurry up."

After finishing speaking, Master Wang hung up the phone, and then said to Lin Yao:

"Comrade policeman, wait a minute, he'll be here soon."

"Well, okay, I'm sorry for you."

Lin Yao nodded and said to him.

After a while, a man in his thirties hurried in from outside.

"Lao Wang, who wants to watch the surveillance?"

He asked as soon as he pushed the door in.

Then, his eyes looked at Lin Yao and Yao Jin in the guard room. ….

He first looked at Lin Yao in surprise, and then immediately reacted and greeted Lin Yao and them:

"Comrade policeman, you want to watch the surveillance, right?"

"Yes, please take us to see the monitoring of the workshop."

Yao Jin said directly beside him.

"Okay, come with me."

Xiao Cheng nodded cooperatively, then turned around and walked out of the guard room.

"Comrade policeman, just go with him."

Master Wang pointed to Xiao Cheng who walked out and said to Lin Yao.

"Okay."

Lin Yao smiled and nodded, and then walked out as well.

After coming to the monitoring room, Xiao Cheng quickly turned on the machine.

"Are you going to see the night of the incident?"

Xiao Cheng asked Lin Yao while operating the computer.

"Yes, I started watching it at eight o'clock on the night of the hair."

Lin Yao's eyes stared at the computer screen tightly, and then nodded and said.

"Okay, you guys wait."

Xiao Cheng agreed, and then carried out some operations.

"Alright."

"Play at 3x speed."

"Okay."

Lin Yao stared at the screen tightly.

After seeing the video at half past nine, Lin Yaocai nodded and said to Xiao Cheng:

"Alright, pause."

After saying that, he walked out of the monitoring room directly.

Seeing this, Yao Jin hurriedly followed.

Lin Yao looked at the front of the corridor and said:

"The surveillance has been seen just now, during this period of time, a total of twelve workers left the workshop, but the worker who left the longest time left for about ten minutes."

"Ten minutes is definitely not enough time to get from the workshop back to the dormitory, kill the deceased on the rooftop, and then drag his body to the warehouse below."

Yao Jin couldn't help but be a little surprised when he heard Lin Yao finish speaking.

He didn't expect Lin Yao's memory to be so good.

He also watched the surveillance video just now, but it was not so clear in his mind.

Unexpectedly, Lin Yao read it like this and memorized all these key information.

Subsequently, Yao Jin looked at Lin Yao and asked:

"In that case, there's a good chance that the murderer wasn't from the factory?"

"After all, the three female workers who were resting in the dormitory have basically ruled out suspicion, and the workers on duty in the workshop do not have enough time."

Lin Yao nodded slightly, then frowned and said:

"Could it be that someone from outside the factory entered the factory and committed murder?"

"Let's go, go find Master Wang first."

After finishing speaking, Lin Yao walked into the monitoring room and said to Xiao Cheng:

"We're done, you can go back."

"Don't look at it, do you? That's okay, I'll go first, anyway, if you need my help then, you can just ask Lao Wang to call me."

Xiao Cheng, who was sitting inside, hurriedly got up from the chair after hearing it and said to Lin Yao.

"Okay, no problem."

Lin Yao nodded, then turned around and walked out.

After coming out, the two went directly to the doorman's room downstairs.

"Done it all?"

Master Wang was sitting inside playing with his mobile phone, he didn't expect Lin Yao and them to come down so quickly.

"Hmm."

Lin Yao nodded slightly. ….

"Did you find anything?"

Master Wang asked Lin Yao curiously.

"We can see that the workers working overtime in the workshop have not been out for a long time."

"However, Master Wang, let me ask, do you know that all the workers in the workshop are in their own posts, and there are no absenteeism, right?"

Lin Yao looked at Master Wang and said.

"Absenteeism? That can't be!"

After hearing this, Master Wang immediately shook his head, and then said with a smile:

"If someone really is absent from work, the workshop director will not be willing!"

"After all, everyone's work is assigned, and if someone doesn't come, then the work won't be able to continue!"

After Master Wang finished speaking, he saw that Lin Yao didn't speak, so he hurriedly said:

"If you're not at ease, I'll call the workshop director and ask him to come over."

"Anyway, they don't work in the factory now, and they have nothing to do, mainly to cooperate with you in investigating the case."

"Hmm..... That's fine, you can give him a call."

Lin Yao nodded directly and said.

After a while, the workshop director also came to the guard room.

"Comrade policeman, are you looking for me?"

After he came in, he immediately looked at Lin Yao and the two of them and asked.

Lin Yao stared at him, and then asked:

"You're the workshop director?"

"Yes, I am."

"Were you in the workshop on the night of the incident?"

So Lin Yao asked directly to the point.

"I'm in the workshop! Any questions to ask?"

The workshop director looked at Lin Yao with a puzzled expression and asked.

"That night, except for the three female workers who took leave, did everyone work overtime in the workshop?"

Lin Yao continued to ask him.

"Yes, of course, who wouldn't dare to work overtime without taking leave."

After hearing Lin Yao's question, the workshop director immediately said without thinking about it.

"Are you sure? Won't there be any missing personnel?"

Lin Yao stared at him and confirmed.

"Sure, I'm sure!"

The workshop director immediately said, and then explained,

"Usually I work overtime at night, and after I start working after eating, I have to make a tour of the workshop, and if there is no one in any position, I can see it at a glance."

"So I'm pretty sure all the workers are there."

Lin Yao looked at his affirmative expression, and he didn't want to doubt anything anymore.

Afterwards, Lin Yao continued to ask him:

"This Liu Liang who died, do you know much about his situation?"

After Lin Yao said this, the workshop director frowned, thought for a while and said:

"To be honest, this Xiao Liu was killed in the factory, I really didn't expect it."

"This kind of thing can still happen in the factory!"

"Alas.......

As he spoke, the workshop director couldn't help but shake his head and sigh.

Then, he reacted immediately, then looked at Lin Yao and hurriedly said:

"You ask me if I know anything about Xiao Liu? It's okay, he's been working in our factory for three years, and I'm kind of familiar with him."

"What do you say, sometimes he really likes to be lazy."

"Including when he said that he was not feeling well that day and came to ask me for leave, I thought he was trying to find an excuse to be lazy."

"But he said he wasn't feeling well, and I couldn't force him to work overtime, right?"

"I didn't expect this to happen......

Lin Yao stared at the workshop director, and then continued to ask:

"When he usually works in the workshop, did he ever have a conflict with any of his co-workers?"

"This.... Probably not. At least I don't know."

The workshop director thought for a moment, then shook his head and said,

"Xiao Liu is generally quite honest, and he is not the kind of person who is not very serious."

"As for which worker you said he had a conflict with, to be honest, it's not easy to say."

"By the way, it seems that your colleagues questioned the workers in our factory before, and they probably said they didn't know."

"Comrade policeman, I don't think your target should be on the employees of our factory."

"Because as I said earlier, our workers were all working in the workshop that night, and we are all serious workers, how can there be murderers!"

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