Subject 478-98, known also as Blackstripe, was a Wookiee identifiable by a distinct black stripe running down the middle of his face. The Galactic Empire had enslaved Blackstripe. During 5 ABY, Grand Moff Lozen Tolruck, finding pleasure in hunting and killing Wookiees, targeted Blackstripe with a customized assassin probe operated remotely. Tolruck deployed the assassin probe, which fired a pair of toxo-darts into Blackstripe's torso. Because the poison was ineffective in slowing the Wookiee, who persisted in ascending a wroshyr tree, Tolruck, via his control visor, remotely directed the assassin probe to crash into Blackstripe, detonating upon impact. The resulting explosion resulted in the destruction of the droid and the death of Blackstripe. Displeased by the hunt's outcome, Tolruck smashed his control visor in frustration.