The first time (part one)

"Zeng ke ..." Zhao Yu pressed on Zeng ke's shoulder excitedly and asked,"why did Yun Duo' er apply a pungent chemical reagent to the bodies?"

"Well ..." Zeng ke replied."Didn't we just talk about it? Yun Duo' er didn't want the corpses to be dug out by the animals, so she applied it ..."

"No!" Zhao Yu reorganized his words and asked,"I mean, how did Yun Duo er know that smearing that chemical on the body would prevent animals from digging up the body?"

"Well ..." Zeng ke pondered for a moment, then replied,"I'm not sure. Maybe she has watched that TV series?"

"That's not right," Zhao Yu said, pinching his chin."What I mean is, Miao Xiaowen was the fourth victim. When Yun Duo' er killed her, she already had some experience ...

"But what about before that? Were the other corpses also smeared with the chemical reagent?"

"Um ... Oh ..." Seeing Zhao Yu's excitement, Zeng ke seemed to have thought of something, but he still couldn't figure it out.