Okay, I noticed the codes were hard to find, that's why I will be helping by giving some hints.
Please note that some hints might lead to it's solution easier than others.
Many people had suffered, even Teribel.
Paien Labor is known for it's massacre, which happened at February 5th, 2013.
That's it for now, I have 1 more hint ready but I will reveal that one later. 5th code may remain a mystery until the very end of this event.