For a whole week, Su Hui kept herself busy with the investigation, reviewing surveillance videos around the school area repeatedly, and even having her colleagues assist in tracking Qian Chuan's mobile signal. It was like finding a needle in a haystack; they found no clues at all, forcing her to reluctantly admit that the culprit was extremely stealthy and meticulous.
A colleague came over to Su Hui and greeted her, "That's enough, Su Hui. We've already given it our all. Not every missing person can be found, especially when there are no leads."
"I know, but I don't want to give up so soon." Su Hui had been staring at the monitors so much that her eyes were strained. After rubbing them a bit, she asked: "How about you? Any discoveries on your end?"
The colleague replied, "I've reviewed footage from three cameras near the school and saw nothing suspicious. You know the area around the school has neighborhoods and a commercial plaza, it's normal for people to come and go regularly."