But anyway, I discovered something important.
The contents of the recording Team Leader Oh left behind.
I think I can get the gist of it.
Look here. The date he opened a personal safety box.
{i1}Bank Safety Deposit Rental Agreement{1}Bank: Century Bank - 9/25/2003{i}
Don't you know? It's from thirteen years ago.
So, it was few months after the Newtown redevelopment incident.
It was around the time Team Leader Oh quit the Riot Control Team.