"This is the footage from before the robbers entered the bank."
Luo An pointed at the initial scenes of several surveillance videos.
In the footage, two figures dressed in black clothes and pants, with black gloves and balaclavas, holding a black shoulder bag, suddenly appeared from the side of the street outside the bank and then quickly walked up to the front door of the bank.
Luo An played the video in slow motion, pointing out a small detail to Augustus and Mona:
When the two robbers first appeared in the video footage, both hands were placed on their chests.
"What's the matter, Luo An?"
Seeing this action, everyone was puzzled:
"Isn't that the gesture robbers make to psych themselves up?"
"No."
Luo An shook his head and slowly enlarged the video until it was about to blur out of clarity, then he stopped.
Then everyone saw that the hands the robbers had on their chests weren't clenched into fists but were open and hooked.
