last case

Suddenly there was a gray envelope on the gate of Su Juanxiao's house. First of all, this envelope could not have been conjured out of thin air, it must be placed on the door by someone.

So who put this envelope on the door?When was it put on the door?This is the problem they have to solve.

Tang Xin pushed open the door of the stairwell. The inside was cleaned very clean, and the voice-activated lights were also very sensitive. It was hard to see if someone had escaped from the monitoring and came up here.

If someone wants to split the monitor, he can only choose the way up the stairwell.

Or there are two other possibilities. In fact, that person has a hidden identity that does not need to avoid monitoring, and will not be suspected by others at all.

In this way, the delivery boy who comes to deliver fresh milk every day is indeed suspicious.If he took the opportunity of delivering fresh milk and stuck the envelope on Su Juanxiao's door, no one would pay attention to him.

Of course, there is the last possibility. No one bothered to think about how to evade surveillance and deliver the envelope. If Miss Su herself had such a letter and pretended that she picked it up at the door, everything would be logical.

Tang Xin's phone got through, and the phone rang a few times before the other party picked it up.

Tang Xin first introduced who he was, and the other side of the phone was obviously taken aback. He didn't understand why the police detective called him suddenly.

Tang Xin asked if he saw a gray envelope stuck on Miss Su's door when he was delivering fresh milk this morning.

The delivery guy was just confused for a few seconds, and quickly said with certainty: "I see, there is one. It's on the door of the house on the sixth floor of Building No. [-], isn't it?"

"Are you sure?" Tang Xin said.

The delivery boy was very sure, and said: "I went upstairs to deliver milk, and the envelope was placed on top of the milk box. When I opened the box with the key, the envelope fell on the floor..."

The little brother said that he didn't notice something was put on the milk carton at the time, and something fell off, which turned out to be an envelope.

The little brother picked up the envelope and found that there was no recipient, but there was something like a postmark in the corner.Although he felt a little curious, he didn't look at it too much, because at that time, he still had a few households that had not finished delivering fresh milk, and it was almost time to order.

The delivery boy inserted the envelope that was originally on the box on Su Juanxiao's door, put away the fresh milk and left.

Because of such a small episode, the delivery boy still has an impression, and he remembered it quickly when he mentioned it.

But the delivery boy was a little surprised. Could it be that the letter from that household was lost?But that wouldn't bring the detectives here, would it?

Tang Xin asked the delivery boy again when he came here, and the delivery boy answered accurately.

The delivery boy said that they are now giving real-time feedback on the work progress. When delivering a bottle of milk, they will use the mobile phone software to confirm a bottle.

So his mobile phone recorded the time when he arrived at Su Juxiao's door, which was 48:[-] in the morning. At that time, the gray envelope already existed.

Tang Tao thanked him, then hung up the phone and walked back to Su Juanxiao's house.

Xie Jibai had already come down from upstairs, and he and Chen Wanting were asking some detailed questions about this morning.

Seeing Tang Xin come in, Xie Jibai stood up and walked over, asking, "How is it?"

Tang Xin said: "I called the delivery man who delivered the fresh milk, and the delivery man said that at 48:[-] in the morning, he saw this gray envelope."

For the safety of Su Juanxiao and Liang Zhi, Chen Wanting decided to send people to guard here in shifts these days to avoid any accidents.

Xie Jibai and Tang Xin also agreed with this method. Now they have not identified the target of the murder suspect, so it is related to this incident. Anyone who has no alibi and is suspected of murder is very likely to be the murderer.In this way, Liang Zhi is also suspicious.

It is indeed a good way to send people to protect the safety of Su Juanxiao and Liang Zhi, and also to follow and observe Liang Zhi's movements.

Chen Wanting stayed first, and let Xie Jibai and Tang Xin go back with the gray envelope.

When Xie Jibai and Tang Xin returned to the police station, Liu Zhihui and Qin Xu had also returned.

Everyone heard something new, so they asked about it as soon as they got back.

The gray envelope was taken to the Technical Investigation Division for analysis, and the results came out soon.The pen and paper are very ordinary, and there are no clues that can be seen. The strange thing is that the notes are not from the man in the gray trench coat, which is different from the previous notes.

This surprised everyone.

Chen Yancai said: "By the way, is there a possibility that the men in the gray trench coat are actually just an organization, and they only wear the same clothes to commit crimes, so it is normal that the notes are different?"

"It is indeed possible." Xie Jibai said: "But the notes have not changed for so many times, and the sudden change is enough to explain that it is very strange."

"That's true." Chen Yancai said.

Tang Xin said: "In addition, the fingerprints of two people were found on the envelope, one is that of Ms. Su, and the other should belong to a tall man, who should be the delivery man who delivered the fresh milk."

Before Su Juanxiao took the envelope into the house, the delivery man touched the envelope. He took the envelope and stuck the envelope on the door, so it is normal to have fingerprints.

Other than that, there are no other fingerprints.

When Chen Wanting and Xie Jibai touched the evidence, they both wore gloves, so they didn't leave fingerprints.

As for Liang Zhi, she was very scared at the time, she didn't touch the letter at all, but glanced at Su Juanxiao's side briefly, and then she was so frightened that she lost her mind.

The letters didn't give them much clues.Because Chen Wanting was away, Xie Jibai arranged a division of labor. They needed someone to accompany Su Juanxiao and Liang Zhi at night.

Su Juanxiao and Liang Zhi are both girls, and it would be inappropriate for them to send a man there at night, so Chen Yancai must go there to guard tonight.

When Chen Yancai heard this, she patted her chest and said, "Don't worry, I will guarantee everything will be safe."

"Don't you have a date today?" Qin Xu suddenly asked.

"What date?" Chen Yancai asked strangely.

Liu Zhihui suddenly realized, and said: "Sister Chen, didn't you make an appointment with Team Ai in the morning, and you want to have dinner and watch a movie together in the evening?"

"What the hell, it's just that he lost the bet, so he wants to invite me to dinner, not on a date, okay?" Chen Yancai shouted immediately.

Dating?Upon hearing this, Xie Jibai said, "Chen Yancai has something to do today, or can we ask colleagues from other groups to help?"

"They said it's all right!" Chen Yancai said.

Chen Yancai insisted that it was all right, and then ran out, went to the next door to call Team Ai, told him that she couldn't go to dinner today, and we would talk about it another day.

When Team Ai heard that he had brought his suits to work, he planned to change into them on a date after get off work, but he couldn't get up anymore, which is really a pity.

But Team Ai cheered up quickly, and said, "I'll go with you, you are guarding alone, everyone must be worried."

Chen Yancai did not refuse the free labor, and returned to their office after speaking.

As soon as Team Ai turned around, he saw that everyone in the office was staring at him with their ears pricked up.

Team Ai coughed in embarrassment.

Someone booed and said: "Boss, you are lucky today! Being able to watch the night with your sister-in-law is like a lonely man and a widow, and maybe you can squeeze a sofa."

After hearing this, Team Ai had a sudden realization expression on his face, but he quickly said, "What kind of lonely men and widows? We are going to work to protect the safety of the two girls."

As soon as he said that, the people around him burst into laughter and said, "Boss has a lot of good luck, so many at once."

"Fuck off, you're too idle, aren't you?" Team Ai said.

After Team Ai taught them a lesson, he imagined the scene of sending a sofa to Chen Yancai, but it didn't feel realistic, even if there was a sofa to sleep on, he must have slept on the floor by himself, and Chen Yancai on the sofa...

Because it was too late to get off work yesterday, everyone was about to leave after it was almost o'clock today.Chen Yancai and Team Ai ran to replace Chen Wanting, and the others went home to catch up on sleep. In the early morning tomorrow, Liu Zhihui and Qin Xu would be substitutes, and then Xie Jibai and Tang Xin.

Xie Jibai hardly slept for two hours yesterday, he was already pale, and the dark blue under his eyes was particularly obvious.

Tang Xin and Xie Jibai went home together, feeling very tired, they just made do with something simple for dinner, and when their stomachs were full, Xie Jibai started to feel sleepy.

After Tang Xin came out of the kitchen after washing the dishes, he found the bathroom door was closed. Xie Ji Bai must be taking a shower, and he could hear the sound of running water through the door.

Sitting on the sofa, Tang Xin raised his head and rubbed the center of his brows, thinking to relax a little, and then he can go to sleep after Xie Jibai finished taking a shower.

But this time, Tang Xin waited until he fell asleep. For almost an hour, there was no movement in the bathroom, and the "squeaking" water flow continued silently.

Tang Xin woke up and looked at the time, and immediately felt that something was wrong.When he walked to the door of the bathroom, he almost slipped. The water in it had never stopped, and it actually flowed out from the crack in the door.

Tang Xin's face suddenly became very serious. He knocked on the door several times and shouted, "Xiaobai? What's wrong with you, Xiaobai?"

There was no response from inside, Tang Xin's heart suddenly rose, he grabbed the doorknob and twisted it vigorously a few times.

Fortunately, Xie Jibai hadn't had time to get in touch to replace the bathroom door. There was something wrong with the lock on the bathroom door, and he hadn't replaced it yet.Tang Xin bumped it hard twice, and then heard a "click", and the door lock bounced open.

As soon as the door was opened, there was water everywhere, Xie Jibai was lying naked in the bathtub, his face was abnormally red, his eyes were closed, he didn't seem to be asleep, but fainted.