I can't remember his name, but there was some1 outside at the trees and camped-kill guards on distance.
Everything I could find out was, that he must've got out at the orange platform where Prisoners can win the round, and found a way outside of the map.
P.S.: At the Orange platform the gold coin says: "Too bad it's 2013." But we already have 2014 now :3
Cendren