"No, not at all. Because we work three shifts in the security department, there are a lot of emergencies, so drinking is not allowed. I drank this time secretly, I didn't dare let anyone know, if they found out I would lose my job."

"Okay, your questioning is over."

"Interrogators, you must clear my name!"

Yan Jingqing hung up the video call without any hesitation.

Su Ya and Yan Jingqing analyzed that the three people they had just interrogated—the eyewitness, the witness, and the suspect—were all holding back their statements. Currently, aside from Hou Yao's girlfriend being frequently beaten by the deceased, giving him a motive for murder, Liu Guoxiang's motive for murder wasn't so clear, and while Feng Guoguo had no motive, the seemingly most harmless person was likely the biggest boss. It seemed their first step was to determine how Hou Yao was murdered in the locked room to eliminate false suspects.

"Let's examine the body again. There must be something we missed earlier."

So the group continued examining the body. They then found a notebook inside the body's clothing.

Yan Jingqing opened it and read it aloud.

"January 23rd.

I know you still like your ex-boyfriend and don't want to be with me, but I like you so much, please don't leave me.

“This looks like a diary,” Junjunzi said.

Yan Jingqing, continue turning the page.

"January 24th. I know you two met secretly that day, and you didn't come back all night. I waited for you from dusk till dawn, but I couldn't find you. Don't you really care about our past?"

"On January 25th, I couldn't take it anymore. Today I saw that the two of you met. He held you in his arms, and you looked so happy."

"On January 26th, we'll have money soon. I'll never gamble again. Please don't leave me."

"January 27th, I love you. I really didn't mean to that day."

January 27th, which was yesterday, was the date I was supposed to die.

"Therefore, it can be determined from this diary that the girlfriend he wanted has changed her mind."

"That should be the case; dead people don't lie, right?"

Su Ya pondered for a moment before speaking.

"So that means his ex-girlfriend's ex-boyfriend could also have killed him. But who was that person?"

"Right now, we need to find clues about my ex-boyfriend."

Su Ya called Yan Yingqing aside.

They began discussing how to kill him.

"Based on the clues we have, he probably burned the fishing line with a candle, then tied a needle to the line, the needle punctured something, and released a colorless and odorless gas. But I don't understand what use half a bottle of yogurt would be?"

"Is the yogurt just a way to mislead us?"

"That's possible."

"So he must have done it from outside the window. There's a window on the right side of the room, and the fishing line is very thin. This colorless, odorless, and poisonous thing could kill someone instantly or it could delay death by a few hours. But we don't know what this deadly thing is right now. The balloon was punctured, and nothing was left behind."

"So, Liu Guoxiang, Feng Guoguo, and Tao Xiaoguo are all capable of committing murder outdoors."

"But who set up this mechanism?"

"The only time we can deduce right now is after 8 o'clock."

"You don't know about autopsy equipment?"

As soon as Su Ya finished speaking, she heard the system notification sound.

"Congratulations on obtaining the mysterious item—the autopsy report, which can tell you the time of death of the body."

So that's how it works.

Then the system continued to speak.

"The autopsy report has been sent to Anyadi's phone, the owner of phone number 2."

The two returned to the middle of the group from the corner.

Then Anyadi, the owner of phone number 2, took out his phone, which contained the autopsy report for the deceased, clearly stating the time of death as 11 p.m.

Liu Guoxiang said that the time to see the deceased was between 9 pm and 10 pm.

The girlfriend, Xiaoguo, said that the deceased left after 8 p.m.

Feng Guoguo said he discovered that the person was about to die at 2 a.m.

"So who was speaking during this time?"

If someone dies after inhaling the elemental gas, then someone must have appeared outside the waiting dormitory at 11 o'clock.

Suya thought for a moment and then spoke.

“Interrogate these three people again and make them provide alibis for 11 p.m.

So Su Linxi, using phone number 8, connected to Feng Guoguo's video call.

What were you doing at 11 p.m. last night?

"I was sleeping at 11 p.m. last night because I had to work the night shift at midnight. So I was catching up on sleep."

Are you sure it's 11 o'clock?

"Yes, it must be 11 o'clock."

Su Ya and Yan Jingqing exchanged a smile after hearing this.

"Is there anyone who can vouch for you?"

"We worked in three shifts, but I was the only one sleeping in the dorm at the time?"

Was the deceased in the same class as you?

"He was supposed to be on the night shift, but someone switched shifts with him yesterday."

"Okay, that's all. We'll contact you again if anything comes up."

"Retrieve the duty roster."

Sure enough, the robot's voice rang out again.

"The duty roster has been posted on the phone of Chu Kexin, the holder of phone number 3."

Chu Kexin, the owner of phone number 3, opened her phone and found that there was already a picture in the photos.

The picture shows the security guard duty roster, which confirms what Feng Guoguo said; they were indeed switching shifts with others.

All of these are recorded above.

So the murderer is not Feng Guoguo.

"Continue to interrogate Tao Xiaoguo."

Yang, the owner of phone number 6, turned on his phone and connected to a video call with Tao Xiaoguo, the deceased's girlfriend.

Yan Jingqing asked the question directly.

"Tao Xiaoguo, what were you doing at 11 pm last night?"

“It was 11 p.m. last night. I was waiting at home for him to come back. He went out at 8 p.m., and should have been back before 10 p.m., but he didn’t come back by 11 p.m. I even checked the time.”

"Is there anyone who can prove this for you?"

"No, I live alone. I only stay in the dormitory when I'm on duty. He switched shifts with someone yesterday, so he doesn't have to stay in the dormitory tonight."

How is your relationship with Hou Yao?

Tao Xiaoguo fell silent.

"Tao Xiaoguo. Are you still there?"

Then Tao Xiaoguo slowly raised her head, then brushed her hair aside, revealing her true face. Chu Kexin and Chu Kening both exclaimed "Ah!"

Oh my god, that's terrifying.

Others also noticed that Tao Xiaoguo had a large scar on her left cheek. Her face was disfigured. So that was the real reason she dared not show her face to others.

What's wrong with your face?