At the police station

7:30 p.m.

Nina had been put in the interrogation room by Mr. Black for her assertive remarks.

She sat calmly in the chair, glancing at Mr. Black. He stood on the opposite side of the table with a hand on his waist as he slammed his other hand on the table in front of her.

"How do you know that she didn't commit suicide? You're disturbing a police investigation. Did you know that? I remember you from the last suicide scene. That was you, right?"

"You asked three questions. Which one should I answer first?"

Nina was co-operating but Mr. Black thought she was being cheeky.

"What do you mean? Just answer me." Mr. Black thumped the table again.

Nina was instinctively looking at Mr. Black and studying him. From all the aggression she could tell that he was impatient and eager to solve this case.

Nina said clear and slowly, "Let me answer your first question, I'm judging from my own observation that this was not suicide. And your second question. I'm not disturbing the police investigat

ad an obvious sense of justice in choosing to become a police officer.

He sat casually and was good at communicating with others.

Noah was very patient. He knew that Nina was observing, but he didn't give her any reaction. He was waiting for her to speak first.

The two of them just looked at each other for a few minutes. Suddenly, Nina pursed her lips and smiled. She introduced herself. "My name is Nina Lu. I'm a sophomore of the psychology department in L University."

"Psychology." Noah didn't even flinch. He seemed to already know that much.

"Why do you think it wasn't suicide?" Noah didn't go to the scene and didn't know the situation. Other police officers came back to report and judged that she committed suicide.

So how could the girl in front of him be so confident that his officers were wrong?

Before this, Nina still had doubts, but after seeing the third incident today, she was sure that her deduction was correct.

With a determined look on her face, Nina said, "Because it's a serial killing."