“But why would a girl like Chu Yan want to kill a triad boss?” wondered Xiaotao. “Could she actually be a professional assassin? That’s a bit too far-fetched, isn’t it?”

“We’ll have to investigate her father’s background,” I said. “We’ve already found the prime suspect. I’m sure we’ll reach the truth of the matter soon enough.”

The next day, Xiaotao called me and told me that they’d found Chu Yan’s father and that he’d soon be brought in for questioning. Dali and I rushed to the police station. When we arrived, Xiaotao was already waiting with Chu Yan’s father in the interrogation room. The man was bespectacled and seemed gentle-mannered. After taking a seat, I perused through the information that the police had gathered about the man. He was highly educated, and he used to work in a scientific research institution before turning to business. He was now a self-made entrepreneur. 

“Let’s start, Mr. Chu,” said...