Sheriff Uncle, open the door quickly! I've come to solve a case!

"There's another person?" Li Ku asked incredulously.

"That's the only speculation." Qin Qingzhou put on gloves and took the traces from the cup back for testing.

The cup was also taken away as evidence, placed in an evidence bag.

When the test results came out, they were exactly as Qin Qingzhou had expected.

That temporary accommodation was the deceased's residence, and the deceased was a worker on this construction project named Lu Hua, who usually lived there.

The other glass contained dried beer, but the man was careful to wipe away any saliva residue that might remain on the rim.

Then that person is most likely the murderer.

There are no other clues at the moment, so we can only try to start with the nearby surveillance footage.

Qin Qingzhou lost track of time once he started working, and before he knew it, he was busy until midnight. But he forgot one thing...

Xia Shuang closed the shop humming a song as she did so, exhausted after a long day.

She doesn't have an electric scooter and usually takes the subway home. When she got off the subway, she suddenly remembered what the little boy at the police station had told her during the day.

She often goes online and knows a little about Bai Zhizhi's story, but she doesn't really believe it.

It's not that magical.

Could something unexpected happen to her tonight?

And the person who saved her was her online boyfriend?

Although she was skeptical, Xia Shuang still sent a message to her online boyfriend.

[Almost home.]

Her boyfriend replied to her message quickly.

[Okay, baby, text me when you get home.]

Xia Shuang felt a little relieved and slowly walked towards home.

She lives in an old neighborhood that was built twenty years ago. The streetlights are spaced far apart, so even though there are lights, there are dimly lit sections after walking a certain distance.

Xia Shuang was already used to this road; she could walk home with her eyes closed.

But as she walked, she suddenly felt that something was not right.

It felt as if someone was following me, albeit subtly.

If you walk fast, your pace must also be fast.

They walked slowly, their steps were slow.

He quickly turned around and saw a man behind him.

But it was a main road, and the man walking behind wasn't sure if he was following her.

However, Xia Shuang felt as if he was holding something that was shimmering with silver light, but she wasn't sure if she was seeing things wrong.

Could it be a knife?

impossible……

Xia Shuang felt inexplicably scared and quickened her pace.

Unexpectedly, the man noticed that Xia Shuang had quickened her pace and was walking towards her at an even faster speed.

Xia Shuang was so frightened that she almost ran away; fear surged into her heart in an instant.

Remembering Bai Zhizhi's words, she immediately took out her phone and made a video call to her boyfriend.

"Honey, I'm almost home. I bought you your favorite mini bread."

As soon as the call connected, Xia Shuang started talking on her own before her boyfriend could even speak.

The man following behind was almost catching up with Xia Shuang when she raised her hand and heard his voice. She silently withdrew her hand and slowed her pace.

"Huh?" The boy was taken aback for a moment. Xia Shuang appeared to be outside on the screen. He immediately realized, "Really, honey? Can you carry it? I'll come downstairs to get you."

"Okay, I'm almost downstairs, come down quickly."

The footsteps behind him disappeared.

She glanced back; the man was already gone.

A sudden wave of fear washed over her, and she ran home as fast as she could. She closed the door, her legs gave way, and she collapsed to the floor, gasping for breath.

What Bai Zhizhi said was actually true.

Soon her boyfriend called again, and only after seeing Xia Shuang's background at home did he breathe a sigh of relief.

"What happened just now? Are you okay, baby?"

Xia Shuang had just recovered from her fear when her boyfriend's concern made her want to cry: "Someone was following me just now, it was so scary..."

The boyfriend quickly comforted her, saying, "It's all my fault. If I were here with you, I wouldn't be afraid."

Xia Shuang wiped away her tears and stubbornly shook her head.

"Baby, I've settled my work here. I'll come work in your city, and I'll pick you up from get off work so you won't be scared."

"real?"

"real."

The next day, police arrested a pervert near Xia Shuang's home who was attempting to molest a girl and was also carrying a dangerous controlled knife. He was apprehended by the police just before he was about to commit the crime.

Xia Shuang saw his photo on the news and realized it was the man from last night. She patted her chest in relief.

Thankfully, that little kid reminded her, otherwise she would have been the one in danger last night.

She had originally planned to wait for Bai Zhizhi to come and thank her in person, but Bai Zhizhi hadn't shown up in the past few days.

……

The police investigated tirelessly for several days and found surveillance footage in the nearest location.

The surveillance footage showed that the only people coming and going each day were construction workers, which suggests that the murderer was likely one of the construction workers.

However, this also presents a significant problem: most of the construction team members are workers from rural areas, some of whom don't even have ID cards and simply follow the foreman.

Daily pay, working one day at a time, when there's no money, it's even hard to find people.

Qin Qingzhou and his team went to great lengths and only managed to find a few workers and foremen, and the interrogation process was also fraught with difficulties.

There has been no progress in the case after so many days.

Bai Zhizhi returned from kindergarten and barged into the office holding a large red paper.

"Uncle! Look at the 'Fu' character that Zhizhi drew!"

Today's activity class was to draw Spring Festival couplets. Bai Zhizhi couldn't read either, so he just copied the shape of the character "福" (fu, meaning good fortune) and wrote it on like he was drawing a picture.

Looking at the crooked "福" (good fortune) character and Bai Zhizhi's excited little face, Qin Qingzhou felt her nerves, which had been tense for so many days, relax a little.

"Put it on my office door."

"Okay~" Bai Zhizhi held up the "Fu" character, stood on a small stool, and pasted the "Fu" character very low.

Lin Yuhe, who was passing by, saw it and looked at it with interest for a while: "Zhizhi, it's pasted upside down."

"Huh? It's not reversed?" Bai Zhizhi looked at it from left to right, it was clearly real.

"The character '福' (fortune/blessing) should be pasted upside down, symbolizing that good fortune has arrived."

"Oh, that's amazing!"

Lin Yuhe stepped forward to lend a hand and helped paste the "Fu" character.

After putting up the "Fu" character, Bai Zhizhi went inside to find Qin Qingzhou. Like a lazy little cat, she climbed from under his arm to his thigh and snuggled into his arms.

Qin Qingzhou spread out the photos of the suspects that had been found on the table, and Bai Zhizhi looked at them one by one.

"Can you tell if there are any murderers among them?"

Bai Zhizhi rested her chin on her hand and pointed to one of the photos of a man: "He's a murderous villain."

The man in the photo has dark skin and looks about the same age as Lu Hua.

Just to be on the safe side, Qin Qingzhou also showed Bai Zhizhi Lu Hua's photo: "Is he the villain who killed this person?"

Bai Zhizhi nodded vigorously: "Yes, yes."

But she quickly added, "There's another bad guy's picture that's not in here."

Bai Zhizhi raised her little head, her eyes sparkling: "This uncle was killed by two people~"