Yang Ping nodded and asked, "What about the organophosphates?"
Dr. Yuan said, "We've checked all the items at Professor Zhou's home and found no bottles of organophosphate reagents. In the laboratory, we've accounted for all the chemicals registered under his name. There are two bottles of organophosphates, both are standard samples: one bottle of Malathion and one of Dichlorvos. But both bottles are still there, sealed well, with no signs of being opened."
Yang Ping frowned, "No signs of being opened?"
"Yes, the technical team checked. The sealing membranes on the caps are intact, not opened, and there are no needle marks or anything similar."
Yang Ping was silent for a long time, then said, "Okay, I understand."
He hung up the phone and sat in the chair, lightly tapping the desktop with his fingers. Zhaxi noticed that his tapping rhythm was slow, like he was calculating a complex math problem in his brain.
"Zhaxi, what did you hear?"
