The Case of Love

Chapter 4 The first clues

"This is still uncertain, but he has the conditions to poison. At this time, there is no one else in the office except him!" Su Xiaohan said seriously.

"Let's watch a few more videos. If they are the same as these ones, find Xu Yongfeng immediately!" Zhou Yifeng ordered.

"Yes, boss!" Ma Nan continued to play the surveillance video.

In the surveillance footage, Xu Yongfeng was still the first to return to the office after leaving at 9 a.m. According to Ma Nan, every morning at 9 a.m., they would hold a morning meeting in a conference room not far away. After the morning meeting, they would return to the office one after another. At other times, there would be almost always someone in the office, only at this time would the office be empty.

"Su Xiaohan and I will go to the cardiac surgery department, and Ma Nan will continue to watch the surveillance to see if he can find anything else." Before he finished speaking, Zhou Yifeng left the monitoring room.

Su Xiaohan responded and followed him to the elevator.

When they arrived at the cardiac surgery office, the female doctor was still there. Xu Yongfeng and two students were performing surgery on a patient in the operating room.

Seeing them coming again, and specifically looking for Xu Yongfeng, the female doctor panicked a little, and tentatively asked Zhou Yifeng: "Comrade police officer, Director Guo's death is not related to Director Xu, right?"

"We're not sure yet. We just want to find him to find out more." Zhou Yifeng said vaguely because it was not convenient to reveal the details to her.

"Doctor, what do you think of the relationship between Director Guo and Director Xu?" Su Xiaohan asked casually.

"Director Guo and Director Xu... should have a good relationship. I see them talking and laughing all the time. My colleagues told me that Teacher Guo was once Teacher Xu's student! When Teacher Guo first came to the Department of Cardiac Surgery, Teacher Xu helped him a lot." The female doctor answered seriously.

"Students!" Su Xiaohan frowned and looked at Zhou Yifeng, whispering, "Captain Zhou, your own student is the director, and you are the deputy director. It must be uncomfortable to be led by students, right?"

At this point, Su Xiaohan became even more suspicious of Xu Yongfeng, and Zhou Yifeng nodded slightly in agreement.

Next, the female doctor talked about what she knew about Guo Zhigang and Xu Yongfeng. And according to her recollection, just as they saw in the surveillance video, Xu Yongfeng sat near the door in almost every morning meeting and was the first to go out after the meeting.

They even joked behind his back, saying that Director Xu was probably in a hurry to go to the bathroom.

All signs indicate that Xu Yongfeng is the most suspicious.

"Where is Director Xu's desk?" Zhou Yifeng no longer had the patience to wait for him to come back.

"Inside, near the door, Director Xu and Director Guo sit opposite each other." The female doctor pointed to the suite inside.

Zhou Yifeng stood up upon hearing this and motioned Su Xiaohan to follow him.

Xu Yongfeng's desk was very tidy, with nothing on it except a computer, a few medical records, and a tissue. Zhou Yifeng tried to open the drawer of his desk, but it was locked.

Su Xiaohan went to check the desk opposite and found it was even cleaner. There was nothing on it except a computer and a gel pen. Guo Zhigang's wife said that he always carried a thermos cup with him and drank several glasses of water every day.

Su Xiaohan thought that since his family members did not come to the hospital to collect Guo Zhigang's belongings, the thermos cup he used during his lifetime should be placed in a place where he could easily reach it.

Thinking of this, Su Xiaohan opened the drawer of Guo Zhigang's desk. Inside, there were medical records, alcohol, cotton swabs and other things, but no thermos cup.

"Captain Zhou, his thermos cup must have been taken away by someone." Su Xiaohan turned to report to Zhou Yifeng.

Zhou Yifeng remained silent and walked out of the suite.

"Police comrade, please wait a moment. According to the time calculation, our Director Xu's operation should be almost over." The female doctor poured them two glasses of water and placed them on the table.

"Thank you! You go on with your work!" Su Xiaohan thanked softly.

Su Xiaohan's WeChat notification sounded. She unlocked the screen and looked down. It was Zhou Yifeng who sent the message: "Wait here. I'll go in for a while."

Su Xiaohan understood and said nothing. Soon, Zhou Yifeng went in and out again. Su Xiaohan guessed that he must have checked it again.

The two sat on the sofa for a while, and Xu Yongfeng finally came back.

As soon as he entered the room, he saw Zhou Yifeng and Su Xiaohan again. He frowned slightly, but soon relaxed his brows and asked with a smile: "Comrade police, why are you here again?"

Zhou Yifeng and Su Xiaohan could both feel that his smile was very deliberate.

"We want to talk to you, let's go in!" Zhou Yifeng stood up and went into the inner room of the office.

Su Xiaohan was outside the door and made a "please" gesture to Xu Yongfeng.

Xu Yongfeng followed Zhou Yifeng in, and Su Xiaohan closed the door after entering.

"Tell me, where did you hide Guo Zhigang's cup?" As soon as the door was closed, Zhou Yifeng went straight to the point.

"Cup? What cup?" Xu Yongfeng looked confused.

"The thermos cup that Guo Zhigang placed on the table." Zhou Yifeng turned his head and stared at him.

"What thermos? I didn't notice any thermos on his desk!" Xu Yongfeng's expression made him look very innocent.

"Guo Zhigang drinks several glasses of water every day. The water dispenser is right next to you. Haven't you seen his thermos cup?" Zhou Yifeng questioned.

"Comrade police officer, I'm very busy every day and have no time to pay attention to this. Besides, his thermos cup may not be in the office, maybe he took it home!" Xu Yongfeng retorted.

"Open the drawer and let us take a look!" Zhou Yifeng sneered.

"Comrade policeman, you don't suspect that his cup is with me, do you?" Xu Yongfeng looked dissatisfied. To prove his innocence, he immediately used the key to open the drawer.

Zhou Yifeng looked through it and found that there were things that doctors usually use. Only a bottle of medicine caught his attention.

He took out the medicine from the drawer, examined it carefully, and handed it to Su Xiaohan: "Look, what is this?"

There were English words on the medicine bottle. Su Xiaohan laughed secretly. It turned out that the omnipotent Captain Zhou also had a weakness: he was not good at English.

"Captain Zhou, this is a hormone drug." Su Xiaohan took it, looked at it, and quickly replied.

"Take it to Forensic Doctor Sun and ask him to see if the composition of this medicine is different from the one in Guo Zhigang's body." Zhou Yifeng whispered in Su Xiaohan's ear.

Su Xiaohan had never been in such close contact with him before. His breath spread on her ears, making her feel itchy, and her heart became a little restless.

Xu Yongfeng, who was standing by, had already noticed their suspicion and explained, "Comrade police, this is the medicine I usually take. Is there anything wrong with it?"

"It's okay, we just need to take it for testing. Director Xu, from now on, please go back with us and cooperate with the investigation. If there is nothing wrong, we will let you go as soon as possible."

Zhou Yifeng's tone was relatively gentle, but his intimidating aura made Xu Yongfeng feel uneasy. He said nothing more and nodded, "Okay, I will definitely cooperate with the investigation!"

Zhou Yifeng pushed the door open first, and Zhu Xiaofeng and Xu Jungang came up to find him. Zhou Yifeng asked them to take Xu Yongfeng back to the police station. After they left, he called to arrange for someone to check Xu Yongfeng's home, and then talked to Guo Zhigang's wife to confirm that the thermos cup Guo Zhigang used before his death was not at home.

"Captain Zhou, if Xu Yongfeng was the one who poisoned Guo Zhigang, would he have thrown away the cup after knowing that Guo Zhigang had committed suicide? Maybe we can check the surveillance cameras nearby, just yesterday and today." Su Xiaohan had been thinking while Zhou Yifeng was on the phone, and now she had an idea.

"Go downstairs and ask Ma Nan to retrieve the surveillance footage from the hospital and the surrounding trash bins." Zhou Yifeng said as he walked out.