In Tang Cheng's view, calling the police is the wisest thing to do.

First of all, the suspicion of insiders is the greatest when they can enter the dispensing room unknowingly and replace the drugs and labels that are ready to be injected. There is a homicide, the evidence at the scene is there, and it is natural to call the police.

Secondly, Lin Yi is in a very dangerous situation now, and the appearance of the police can be a good deterrent to those who want to murder her and play a protective role.

In this way, you will kill two birds with one stone.

"An alarm message has been sent." Turing 5467 replied.

"I thought you'd stop me." Tang Cheng whispered, "After all, you're a kidnapper. ”

"Haven't we already put our old suspicions on the grain? I collected neural activity in your brain and analyzed the alarm intent, and it turned out that this behavior was not a threat to me. Besides, even if you tell the police that you have been kidnapped by AI, no one will believe you. You don't have any evidence about the kidnapping. Turing 5467 said.

"You're such a thoughtful fellow." Tang Cheng said with a smile.

The person in charge of the hospital quickly called up the surveillance video, and Tang Cheng asked Lin Yi to collect the evidence and rush to the monitoring room to check the video recording. It would be great if the real culprit could be locked before the police arrived.

Surveillance footage in the dispensing room showed Lin Yi completing the dispensing at 10:22 a.m. and going to the ward to inject the patient.

The staff reclocked the time forward to 9:40 according to the instructions of the person in charge of the hospital, and Lin Yigang at that time prepared the medicine and put it in the tray and confirmed it. Then something emergency happened, and she and another nurse in the dispensing room ran out at the same time.

"What happened during this time?" Tang Cheng asked.

"There was a patient in ward 306 who suddenly went into shock, and An An and I quickly rushed over to rescue after receiving the news, and I didn't return to the dispensing room until the patient was out of danger." Lin Yi said truthfully.

The person in charge of the hospital pushed his glasses, "Who stayed at the nurses' station during the time you were away?" ”

"No one." Lin Yi said, "Sister Xiaoxi went to change the patient's dressing, and An An has been with me all the time." ”

"Cut through the surveillance outside." Tang Cheng said to the staff in the monitoring room.

The surveillance video switches to the nurse station in front of the dispensing room, and the two surveillance screens are listed in the same frame, and the time of the internal and external scenes is synchronized.

"Fast forward, 4x speed......" Tang Cheng stared at the screen tightly, his eyes sharp, "Stop!" ”

The video freezes, and a figure appears at the front desk of the nurses' station.

"This is Sister Xiaoxi." Lin Yi pointed to the figure and said.

Tang Cheng looked carefully and found that the man was wearing a hat with a blue bar and a collar emblem. This blue bar is an important information to distinguish the level of professional titles. There are no blue bars on the hats of ordinary nurses, one blue bar is the head nurse, two blue bars are the head nurse of the department, and three blue bars are the director of the nursing department.

In the case of taking off the hat, looking at the collar badge is an important way to distinguish nurses with professional titles from ordinary nurses.

Obviously, the person on the screen is a head nurse, and when Tang Cheng was at the front desk of the nurse station, he happened to inadvertently scan the name on the duty schedule.

"Head nurse, Chen Xi?"

Lin Yi's expression was slightly surprised, and he nodded, "You know her?" ”

"I don't know." Tang Cheng continued to look down.

The surveillance video returned to normal playback speed, and the head nurse, Chen Xi, returned to the front desk to take only a sip of water, and then turned around and left. Ten minutes later, another figure appeared sneakily and walked briskly into the dispensing room. She wore a mask and couldn't see the side of her face clearly, and the clothes she was wearing were very wide and obscured her figure, making it difficult to recognize.

The only thing that can be distinguished is that she does not have a blue bar on her hat, and there is no collar badge or badge on her clothes, which can be judged that she should be just an ordinary nurse.

After entering the dispensing room, she took out another bottle of potion from her pocket and quickly switched it with the potion prepared by Lin Yi on the counter. There were quantities of medicines in the hospital, and it was impossible to fill the gap with one medicine for another, so the man made a surprising move.

She dissolved the bottle of azithromycin with the saline solution in the syringe tube and pumped the drug away. Then he tore off the label on the outside of the bottle, stuffed it in his pocket, and sneaked away as he had come.

Just replace the penicillin you should have used with azithromycin when injecting other people who are not allergic, so that you don't know it.

After watching this operation, Tang Cheng couldn't help but gasp, and felt that people's hearts were terrifying.

"That's this man!" The person in charge of the hospital slapped the table angrily, "It's really boring!" ”

"This person looks familiar, but it feels strange." Lin Yi stared at the screen for a long time, and said with a frown.

The other party was tightly covered, and it was difficult for even her to tell who it was just by the figure in the surveillance screen.

The sharp-eyed Tang Cheng found clues in the details, and he asked the staff to play back the video, and the picture was finally frozen at the moment when the person used an injection needle to draw the medicine.

"Zoom in." Tang Cheng prompted.

The picture is enlarged, and some details are more clearly seen by him.

"Left-handed." Tang Cheng said suddenly.

"Huh?" The others didn't react for a moment.

"Holding a medicine bottle in your right hand and a needle in your left hand is a habit that only left-handers have." Tang Cheng gestured as he spoke, turned his head and asked Lin Yi, "Among the few of you, who is left-handed?" ”

"Jingya." Lin Yi replied after a moment's thought, "But she took leave today and didn't come to work." And that back, not like her......"

"There are only four of you on the third floor, people from other departments won't come here, if it's not one of the four of you, then where did this person come from?" The person in charge of the hospital was sweating in a hurry.

If the investigation of this matter is not understood, and the family of the deceased is in trouble, the reputation of the Grace Rehabilitation Center will inevitably be affected. As one of the few private hospitals in Jiangcheng with a good reputation, once the reputation is damaged, it will be a big disadvantage for their business.

"No, it shouldn't be like this...... Tang Cheng glanced at the computer screen, his eyes narrowed slightly, and he suddenly asked, "Is that nurse named Jingya married?" ”

"Nope." Lin Yi's face sank suddenly, "When is it, you still have the heart to ask about the emotional status of other girls!" ”

Tang Cheng didn't explain, and then asked again, "Then who is married?" ”

"Sister Xiaoxi. Of the few of us, she was the only one who was married. ”

"In that case...... I know. ”

Lin Yi glanced at him, "But An An and Jingya both have boyfriends, so don't worry about it." ”

"I don't even understand you, how can I think about them." Tang Cheng raised his eyebrows, pointed to a detail on the screen and said, "This person on the surveillance screen has a ring on her ring finger, indicating that she is married." As you said, Jingya is indeed unlikely to appear here on vacation, but that doesn't mean that others won't appear in her clothes. The clothes are so fat to wear, which means that this person is petite than Jingya. Did the head nurse Chen Xi take a sip of water just now and leave the front desk in a hurry? Knowing that you're not here, if she hadn't had other plans, she should have stayed here. If I'm not mistaken, she should have gone to the locker room during that time and managed to open Jingya's cabinet......"