The nurse narrowed her eyes slightly, and recalled carefully, but still shook her head.

"I have no recollection.

I only remember that I came out of the toilet, and then I was walking in the corridor, but suddenly a figure grabbed my mouth from behind and dragged me directly into the staircase corridor. I struggled desperately, trying to tear his hand off my mouth, but I failed.

After a while, I felt my consciousness becoming more and more blurred, but I forced myself to open my eyes and turned to look at the man's face.

I didn't see it clearly, I didn't see anything."

Xu Yao asked again: "Then what different features did you see on him, on his hands or neck?

At this time, the nurse suddenly Her eyes suddenly lit up, "I remember, when he was approaching me, I opened my eyes and saw a tattoo on the back of his hand holding my mouth."

Xu Yao immediately took out a piece of paper and a pen after hearing this, "Do you still remember it? Draw it now."

The nurse drew on the paper based on her vague memory, "I only remember the general outline, it's a triangular tattoo, and there seems to be a sword in the middle."

Xu Yao asked the nurse some more questions to confirm that she only knew the clue of the tattoo. When Xu Yao fought with the man, he was able to understand the height and weight of the suspect, and that she was a woman.

The woman with a tattoo on the back of her right hand pretended to be a cleaner, broke into Chen's ward and killed him. What was her motive for murder?

Xu Yao was extremely shocked. He thought the Haidao death case was over. After all, Du Xueming and Chen Xinfu had been arrested.

But now a mysterious suspect has appeared again.

Recalling the physical characteristics of Mr. Chen's family members, no one's characteristics are similar to this woman. This suspect is at least 1.75 meters tall and has great skills. It can be seen that she likes to exercise.

Although her fighting skills are slightly inferior to Xu Yao, she must have received systematic training.

Xu Yao felt irritated, and couldn't help taking out a cigarette from his trouser pocket, putting it to his mouth and lighting it.

Why did Mr. Chen just wake up and suffer a tragic death?

Xu Yao suddenly had a bold idea. Could it be that the Haidao murder case was not over yet? Would it stop only if all the relatives of the Chen family were killed?

Mo Xiaoqing was more worried about Xu Yao's eyes, so she came out during a break, but found Xu Yao smoking one cigarette after another in the corridor.

"Captain Xu, why are you smoking again?"

Xu Yao turned around and asked, "How is it, what did Sister Ya say after seeing the body?"

"Sister Ya said that Mr. Chen died about an hour ago, and he might have been killed shortly before we arrived at the fifth floor of the hospital.

The mysterious cleaner who passed by us is most likely the murderer.

Captain Xu, ask the unconscious nurse if she saw the suspect's face?"

Xu Yao took out the paper from his pocket and handed it to Mo Xiaoqing. "No, she only knew that the suspect had a shaped mark on the back of his hand. "

Mo Xiaoqing began to speculate, "Captain Xu, do I find it strange? We just received the news that Mr. Chen had woken up, but how come we found out that he was murdered right after.

Isn't this too coincidental? There was a hacker intrusion not long ago, and the Internet was suddenly disconnected. Experts also determined that someone was working together inside and outside the police station."

Xu Yao asked back, "Do you also think there is a traitor in the police station?"

"I think it's very possible, but I can't guess the other party's intention.

The murderer knew that the police were going to question Mr. Chen, and then Mr. Chen was killed. It's obvious that someone didn't want us to learn information that was very taboo to them from Mr. Chen's mouth."

Xu Yao thought that he came to question Mr. Chen this time just to find out some information about the basement of the island and some things about his establishment of the Institute of Biology.

But now these secrets have been sealed.

The murderer's act of killing to silence people this time aroused Xu Yao's curiosity. He must dig up the truth and keep tracking it down.

Xu Yao put out the cigarette in his hand on the railing and threw it directly into the trash can. He once again returned to the crime scene to direct the work.

As soon as he walked into the ward, he found that next to Mr. Chen's ward sat a slightly hunched-backed, elderly man - Butler Zhang.

His expression was one of extreme pain and sorrow. Xu Yao walked over and patted Butler Zhang on the shoulder, "My condolences. Take care of yourself, Butler Zhang."

Butler Zhang sobbed, "What kind of sin is this? How come the Chen family suddenly fell apart in an instant."

Xu Yao said, "Butler Zhang, can I talk to you alone?

We, the police, also want to catch the murderer quickly and give an explanation to the Chen family. So we hope you can tell the police everything you know, without reservation."

Butler Zhang wiped the tears from the corners of his eyes and stood up resolutely, "Okay, as long as we can give an explanation to the Chen family and catch the murderer of Mr. Chen, I will fully cooperate."

Xu Yao took Butler Zhang directly to the empty ward next door and closed the door.

"Butler Zhang, the day I first arrived at the island, Mr. Chen's son went missing. You came to me and told me that Mr. Chen seemed to have known for a long time that he would have an accident on his 60th birthday.

And you also knew this, so I would like to ask, how did Mr. Chen himself predict these things?"

Butler Zhang sighed, "Alas. We don't have any predictive ability, but Mr. Chen once received a phone call. From then on, he was in a panic all day, had nightmares and insomnia, and finally caused his heart disease to relapse and he fell into a coma.

"What was the content of the phone call?" Xu Yao asked in shock.

Butler Zhang squeezed his hands together and rubbed them hard, pursed his lips, his eyes were wandering, and his expression was very unnatural.

Xu Yao couldn't help but said loudly, "Butler Zhang, it's already so late, are you still hiding something? Don't you think enough people have died now?"

Butler Zhang let out a long sigh, "Hey, I'll tell you, I'll tell you everything.

In fact, I still don't understand why that phone call has such a strong intimidating power. Mr. Chen told me that someone told him to hold a grand 60th birthday party and call all his children back. In addition, he also asked the criminal police team of Kuala Kangsar to come to the island.

Xu Yao was extremely surprised when he heard it. He couldn't imagine such an ending. It turned out that he had fallen into a trap from the beginning.

"Then, butler Zhang, Mr. Chen has been a big shot in the business world for many years. He has a certain courage and ability to handle things calmly. What kind of reason can make him willingly do this?"