After arranging the work, seeing that the 30-minute skill of the coordinate system was about to cool down, Jiang Pingce simply flew back to the dormitory with Yue Xingwen, letting Yue Xingwen take a bath first, and he sat on the edge of the bed to sort out the current doubts.

First, of the seven people who came to the factory at the same time 20 years ago, four were dead and three were still alive. The three people who were still alive, including Lin Yusen and Chen Xiumei, met on the rooftop tonight and mentioned key words such as ‘that incident’ and ‘revenge’, confirming that they had collectively done something bad, and what exactly happened had yet to be verified. Since Xue Xiaolian did not talk to these two people, it was not yet certain whether Xue Xiaolian was involved in the ‘bad things’ of that year or not.

Second, whether the woman who asked Xue Xiaolian to borrow the kettle last night was a coincidence, or a clue character, it was not certain at present.

Third, Lin Yusen was a senior student who graduated from the Faculty of Chemistry. His research was related to highly toxic chemicals, it was easiest for him to get hold of highly toxic agents and quietly kill people, and the motive was also established. He had the highest suspicion, but many times, the highest suspect was not necessarily the real murderer, so they needed to focus on this line.

Fourth, there was the missing night duty list, so they had to wait until after dawn to figure out how to get the full duty information to do a data comparison to see if there were other suspects.

Jiang Pingce sorted out his thoughts, Yue Xingwen had already taken a quick shower. He walked to the bed and sat down, lowered his head while wiping his hair while saying, “I’ll sleep first, then I’ll switch shifts with you at 3:30 am, okay?”

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Jiang Pingce said, “You sleep, I’ll keep an eye on it all night today.”

Yue Xingwen frowned. “We still have to go to work tomorrow, can you stand it if you stay up all night? It’s not like I haven’t stayed up all night, we rotated in the first half of the night and the second half of the night, waking each other up if there’s any commotion, and that’s the deal.”

Jiang Pingce nodded seriously and said, “Okay, I’ll listen to you.”

Yue Xingwen’s ears were hot for no reason—— He suddenly found that over the years, Jiang Pingce seemed to have listened to him in everything? There were few objections to his opinions, including joining the Student Council that year, and Jiang Pingce agreed after he said it…

Cough, did Jiang Pingce have listened to him so much?

Yue Xingwen quickly chased away the crankiness in his mind, rolled over on the bed and stared at the ceiling thoughtfully.

He sorted out his next train of thought and soon fell asleep. Until 3:30 am in the morning, Jiang Pingce woke him up, and the two switched shifts for the night, and arrived at the employee canteen at 7:30 am the next morning.

To everyone’s surprise, a whole night went by and nothing happened.

Xue Xiaolian, Chen Xiumei, and Lin Yusen all appeared at the window of the meal in good health, even Chen Xiumei, who claimed to have ‘nightmares’, looked calm. Rather, there were 12 of them, all with dark circles under their eyes from staying up all night.

Ke Shaobin complained, “Is ‘Black Tuesday’ just a coincidence? The murderer didn’t act on Monday night?”

Jiang Pingce said calmly, “The murderer did not necessarily commit the murder on Monday. Assuming that the resignation of the person on Tuesday after the submission of the report, but also goes through the financial process. The fastest to complete the formalities to leave the factory is Tuesday afternoon. In other words, the three people before were still alive on Tuesday.”

Ke Shaobin scratched his hair. “It makes sense. If they disappeared after they turned in the report, the murderer could have committed the crime on the Monday before the report was turned in. If they had spent a day at the factory and personally resigned after submitting their reports, the murderer probably committed the crime on Tuesday night. What exactly happened when the first three resigned, any inquiries?”

Qin Lu said, “I asked that brother Liu yesterday. According to him, Old Peng’s resignation letter was directly forwarded to the boss, and he did not show up on Tuesday. I haven’t inquired about the others yet.”

Yue Xingwen said, “No matter what, we have to keep an eye on these suspects. I have a hunch that something will happen to someone among these three people who are alive.”

At this time, Chen Xiumei passed by Yue Xingwen with a plate of eggs, soy milk and fritters. Yue Xingwen turned sideways to make way for her, and the moment the two passed by, Yue Xingwen saw that she was wearing a necklace around her neck, and the pendant on it seemed to be a jade Buddha, which was very crystal clear in the sun.

Has she done something wrong and has a guilty conscience, wearing a jade Buddha necklace and praying for protection?

Yue Xingwen turned his head to look at her back and found that she came to the window with breakfast alone. Her face was very pale, probably because she was tortured by nightmares again last night and couldn’t sleep well.

After breakfast time, everyone went back to work.

Xiao Wenhui, the team leader who was in the office with Yue Xingwen and Jiang Pingce, did not come to work, but called them and said, “After I went home yesterday, I accompanied my daughter to dance lessons, and as a result, my daughter accidentally sprained her foot, so I have to take her to the hospital. You two don’t tell the leader, it’s really troublesome to as for a leave from Mr. Zhang.”

Yue Xingwen took the initiative to show concern and asked, “Is your daughter seriously injured?”

Xiao Wenhui said, “The back of the foot is swollen, she is crying out that it hurts to walk, and her mother has an important meeting today and can’t leave, so only me can accompany her to go. If Mr. Zhang checks in, just says that I went to talk about a project, you guys get it, right?”

Yue Xingwen and Jiang Pingce looked at each other and said, “Okay team leader.”

The team leader justified skipping work, and it seemed that he usually did not do this kind of thing.

It was good that he wasn’t there, the two of them could discuss the case in an open and honest manner.

The morning passed quickly, and Ke Shaobin was very powerful, directly hacked into the factory’s scheduling system. He downloaded all the duty schedules of all departments in the factory and sent them to the group.

Jiang Pingce quickly scanned the scheduling table, then shook his head under Yue Xingwen’s inquiring gaze and said, “The other workshops and departments don’t have seven-day shift scheduling either, which doesn’t meet the conditions for committing crimes at a fixed time every week.”

Yue Xingwen touched his chin thoughtfully. “It’s not a crime during the night shift, so the murderer is sneaking out in the middle of the night to kill someone? However, the employee dormitory should have access control right? I remember that the door on the 1st floor was locked last night, and the murderer can’t fly like us, so the murderer can’t go out through the window.”

Jiang Pingce frowned and thought for a moment, and suddenly, he looked at Yue Xingwen and said, “The warehouse manager, they also have night shifts.”

Yue Xingwen was excited, and quickly said to the group: “How many warehouse keepers and watchmen are there in this factory?”

Qin Lu said: “There are 2, both are old people around 50 years old. They are only responsible for the key to the warehouse, and for the approval, storage and access of specific drugs, there are other professionals in charge. Usually, the laboratory needs to go to the warehouse with a stamped approval slip to pick up the drugs.”

Xin Yan said: “There are many ways to take away the chemicals in stock, one is to forge the approval slip and take it directly; Second is that the warehouse manager has the key in his/her hand and takes it privately; Third is that someone stole the key from other people who has the key when the warehouse manager doesn’t pay attention.”

Jiang Pingce asked: “There are only 2 warehouse managers, so that means they can only be on duty every 2 days?”

Qin Lu replied: “Yes.”

“A 2-day shift, 7 shifts is 14 days later, which is the same Tuesday.” Jiang Pingce looked at Yue Xingwen and pointed to the calendar on the table. “And those three people who resigned, the interval between their disappearances was exactly two weeks, 14 days.”

The 2-day shifts schedule was Monday, Wednesday, Friday, and Sunday this week, and Tuesday, Thursday, and Saturday next week; Next week would be Monday, Wednesday, Friday and Sunday, which was exactly the ‘14 days’ interval.

Yue Xingwen’s eyes lit up and said, “It seems that there are important clues on the warehouse manager on the night shift! Whether it’s the warehouse manager stealing the drugs, or someone taking advantage of the warehouse manager’s negligence to steal highly toxic chemicals. This warehouse manager on Tuesday’s shift must know something.”

With the new discovery, everyone just discussed in the group how to check this line. However, the next moment, they saw Qin Miao suddenly send a message in the group: “Chen Xiumei, just went to the personnel department and handed in a resignation report.”

Yue Xingwen: “……”