Zhu Xingxing nodded emphatically, even reaching inside the shoe, her gaze becoming even more resolute.
"Absolutely right, right here inside the shoe, it's hard and stiff, should be milk that was poured in and then air-dried. Let's send it back for testing, this will definitely produce results quickly."
Zhou Ning let out a long sigh of relief; this discovery aligned with his own recent deductions.
He pulled out his phone and dialed Liu Yufei's number.
"Mrs. Fei, can you talk?"
"Yeah, go ahead, I've gone into a room and closed the door. Is there a new discovery?"
"Found some new evidence, but we need the lab to perform a quick analysis to confirm our analysis. We won't be going to the eighth floor; we'll head back to forensics first. You could delay a bit, perhaps check out the surveillance room for footage from Unit 2, ask Ye Chengchen some trivial questions. Can you give us half an hour?"
