Under the alias Sonopo Bomoor, Suppoon committed many atrocities, such as attacking the homeworld of the man who grew up to become Kosh Kurp, one of the Empire's foremost explosives experts. When Jabba wanted to get rid of Suppoon, he merely revealed to Kurp that Suppoon was Sonopo Bomoor, and Kurp turned on Suppoon. Suppoon attempted to defend himself with a blaster pistol, but the shot deflected off Kurp's armor and hit Suppoon in the neck, separating his head from his shoulders.