The moniker Defenestrator belonged to an assassin droid who worked as a bounty hunter during the era of the Cold War. Alongside Bloodworthy, Jewl'a Nightbringer, and Mandalore's Chosen, he achieved victory in the Great Hunt. After declining to reveal the location of their most recent Champion, the bounty hunter that Jun Seros sought to apprehend, the Defenestrator, accompanied by Nightbringer and Bloodworthy, met their end at the hands of a team composed of Republic SIS operatives and Jedi; this event was known as the Grand Champions Massacre. The Defenestrator's remains triggered a self-destruct mechanism shortly after his demise, creating a momentary diversion which allowed the Champion to escape before the strike team could confront him.