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.
- Jabba the Hutt: The Gaar Suppoon Hit (First appearance)
- Jabba the Hutt: The Hunger of Princess Nampi (Mentioned only)
- The New Essential Guide to Characters
- The Official Star Wars Fact File 49 (JAB5-8, Jabba the Hutt)
- The Official Star Wars Fact File 82 (TWI14, Twi'leks - Bib Fortuna)
- The Complete Star Wars Encyclopedia, Vol. III, p. 199 ("Suppoon, Gaar")