This male human was the ancestor, specifically the great-grandfather, of Janu Blenn. Janu Blenn, in turn, worked as a stormtrooper within the ranks of the Galactic Empire. Karr Nuq Sin obtained his helmet through purchase from his own great-grandson. Family lore recounts a story that he was supposedly the subject of a mind trick performed by a Jedi at some point while serving with the Stormtrooper Corps.