Wrong Interrogation Room, The First Cracked Case Shocked the World

Chapter 49: Sister's Devotion!

By this time, Tang Xin had to trust Ning Cheng's judgment. It was all too coincidental. Just as Ning Cheng had obtained the clues – the prescription for sleeping pills and the murder weapon kitchen knife – Zheng Yunyun surrendered and confessed to the murder. It was highly suspicious!

"Mr. Ning Cheng, why are you so sure it's Zheng Yunyun?" Tang Xin couldn't help but feel a sense of wonder.

"If Zheng Yunyun is the killer, what's her motive?" Ning Cheng shook his head. "According to the information gathered during the investigation and interviews, Zheng Yunyun has always been treated well by her grandmother Zheng Ling, and she's never been abused."

"She sympathizes with her sister, but why would she kill grandma Zheng Ling?" Tang Xin asked, "Then why did Zheng Yunyun do this?"

"To protect her sister!" Ning Cheng narrowed his eyes and said seriously, "I've been focusing on investigating Zheng Lingyun, but I've neglected to investigate Zheng Yunyun!"

"If my guess is correct, after Zheng Lingyun killed her grandmother, she must have immediately notified Zheng Yunyun. Then, Zheng Yunyun rushed from the hospital to the crime scene to clean up the aftermath for her sister and create the scene of a robbery and murder."

"If Zheng Yunyun can really pull this off, she's incredibly clever!" Tang Xin couldn't help but sigh, "It's a pity."

"What should we do now? There's no fingerprint of Zheng Lingyun on the murder weapon, only Zheng Yunyun's. And now Zheng Yunyun has surrendered and pleaded guilty to murder. How can we overturn it?"

Just then, Ning Cheng's phone rang again. This time, it was Mu Xiaoyu.

"Ning Cheng, I've arrived at the provincial hospital and checked the prescription!" Mu Xiaoyu's voice came through the phone, even Tang Xin could hear it clearly.

"The prescription wasn't issued for Zheng Lingyun, but for Zheng Yunyun. This result is different from what we judged yesterday!"

"I've already found the prescription form from the doctor who prescribed the medicine in the provincial hospital, and the photo is on VX!"

Tang Xin couldn't help but flash a smile and said to Ning Cheng, who was holding the phone, "It seems you hit Zheng Yunyun's mind. She deliberately opened a prescription list and put it in the trash can of the conspicuous community so you could easily find it."

"The fingerprints on the murder weapon, plus the prescription for sleeping pills, make her a suspect."

"I really have to admire Zheng Yunyun's wisdom. This scheme is almost impossible to solve. She's willing to take the blame for her sister!"

"What should we do now?"

Tang Xin stared at Ning Cheng with wide eyes, as if she wanted to see a headache on his handsome face.

But there wasn't.

He remained calm!

"I already know what you said, that doesn't matter!"

Ning Cheng said to Mu Xiaoyu on the phone, "I asked the doctor who prescribed the sleeping pills, when was the prescription issued?"

"I asked, the doctor said that the order was issued on the 15th the day before yesterday!"

"Ask again, he's lying!"

"Okay!"

Mu Xiaoyu hung up the phone briefly, following Ning Cheng's orders and went to ask the doctor again.

"Why do you say the doctor who made the order is lying? Wasn't the prescription written on the 15th the day before yesterday?"

"Impossible!"

Ning Cheng shook his head and said, "I said that Zheng Yunyun is not the murderer, but Zheng Lingyun!"

"Zheng Yunyun wants to put the suspicion on herself and take the blame, so she has to make her murder appear reasonable. So the opening date of the prescription will be on the 15th of the day before yesterday, so that she seems to be a premeditated murderer."

"But after her sister murdered yesterday, she should have been so flustered that Zheng Yunyun was surprised;

So if you want to fake your suspicions, you can only open a list. That prescription list was opened on the day of 16th yesterday. "

"And Zheng Yunyun is a nurse in a provincial hospital by profession. A prescription drug like sleeping pills can easily make the police think of her. This is exactly what Zheng Yunyun wants to achieve!"

"That elder sister Zheng Yunyun is really smart!"

Tang Xin sighed, feeling pity for Zheng Yunyun.

Zheng Yunyun, of course, was incredibly wise and capable of setting up such a situation in such a short period of time.

But in the end, she met the higher existence of Ning Cheng, and her plan was doomed to fail!

Not long after, Mu Xiaoyu called again:

"I asked again and warned the doctor, but the doctor still said that it was opened on the 15th the day before yesterday."

"Okay, I'll go there myself!"

Mu Xiaoyu couldn't find out the result, so Ning Cheng had to go to the hospital in person.

By the way, let's know what kind of person Zheng Yunyun is!

After driving for more than half an hour, Ning Cheng came to the hospital and saw Mu Xiaoyu at the door.

Then Mu Xiaoyu took Ning Cheng to see the doctor who prescribed the medicine.

The doctor's surname is Qin, and he is in his early 40s. He is already bald, and his slightly sparse hair is set with a bit of wax.

"Officer, what else can I do? I said that Zheng Yunyun gave me the order on the 15th the day before yesterday."

Dr. Qin's mouth was full of complaints, and he said angrily:

"I'm on duty now. I'm very busy every day. This is a matter of life and death. Can you bear this responsibility?"

"I know the importance of a doctor's work, Doctor Qin, I will take 3 minutes of your time!"

"If I can't get the information I want within 3 minutes, I'll leave immediately!"

Ning Cheng sat down in front of Dr. Qin unceremoniously and stared at him blankly.

Now!

A mad and fierce temperament overflowed from Ning Cheng!

Although Ning Cheng has a handsome face!

But Dr. Qin stared at Ning Cheng's ruthless eyes, and he was instantly horrified, and a coolness penetrated his back!

Knock up!

The watch was removed by Ning Cheng and placed on the table.

"The 3-minute timer starts!".