Sometime after 3,900 BBY, HK-47's deactivated 'corpse' was brought to the Jedi Temple on Coruscant. He was placed in the Museum; occasionally Jedi technicians would try to access his memory core for addition to the Archives. In 402 BBY, Den Robiv reactivated HK-47 in the lab and began work. His goal was to find weaknesses in the system, to use against the Dark Hunter's army. HK-47, being an assassin droid, was required to wipe his memory on the start of each mission, to be restored upon return. Unfortunately, HK-47 never returned to his master; any information was likely to be long-gone. He also had a failsafe self-destruct mechanism, to be used on imminent destruction, discovery, or his master's orders. Unfortunately, this did not hold true for the APAD, one of which was captured. Den Rob