286 Formidable Combination

Zhao Yu did not go home to sleep that night, but stayed to investigate with his colleagues. Miao Ying knew most of her colleagues had been working for a few nights straight, so she made arrangements for them to go home and rest up. As Zhao Yu had not been working overnight, he was, without a doubt, the most energetic one.

At that time, he returned to the whiteboard and started analyzing the case according to his usual methods. When he found out about the old man on the video that day, the experts eventually found a few more people who seemed suspicious; like they had changed their appearance.