I am saying that Rina [the missing NPC since...a long time ago] has been smuggling weapons into Gaia via an underground [not like tunnels, but illegal sort of underground] system. After all she is the only NPC that has been missing for a long period of time with no explanation.
It's gonna be a new NPC! He/She also killed Vlad Von Helson and could be responsible for the Zombie incident. Maybe the package LabTechX was delivering was for him! I'm gold, baby!