Dali noticed how I ignored him yet answered Xiaotao’s question immediately. 

“Jeez, dude! I’ve been asking you so many questions and you didn’t even bat an eye,” he complained. “But Xiaotao-jiejie only had to say a few words and you answered her immediately? Dude, are your ears selectively deaf?”

“Okay, okay, I’ll answer your questions later!” I told him. Then I turned to Xiaotao and said, “The handprints on the body and the fingerprints on the plastic bag look very similar to each other. I wonder if there is any possibility that the murderer and the one who discarded the body are the same person?”

“The same person?” Xiaotao raised an eyebrow. “But one is cautious and efficient while the other is sloppy and messy. How could they be the same person?”

I took off my gloves and took a pair of Vernier calipers from my handbag and compared the handprints and fingerprints....