The police momentarily lost his tracks.
Soon, Luke shifted the focus of the investigation to this teenager.
First, he retrieved CCTVs along the northeastern route of the subway to find the youth's trail.
At that time, road monitoring was not very effective, so Luke had the surveillance around the shops checked, and sure enough, the teenager's tracks were found.
However, not every shop had external cameras installed, so aside from reviewing the CCTV footage, the police also arranged for people to visit and inquire if the surrounding shops and pedestrians had seen the youth.
After some tracking and investigating, the teenager eventually entered an apartment building and took the elevator up to the seventh floor.
Luke and his team went up to the seventh floor, where there were twelve residences.
Luke prepared to start his inquiries from apartment 701.
"Dong Dong…" Luke knocked on the first door.
