Sha Cabrool Nuum, a crime lord operating on the planet of Smarteel, was the father of both Norba Nuum and Rusk Nuum. In addition to this, he maintained a long-standing friendship with Jabba Desilijic Tiure. Cabrool's business primarily involved the trade of pre-owned spaceships, though he also engaged in the slave trade.
On one occasion, Jabba attempted to sell Princess Nampi's modified Nuffin freighter to Cabrool. During this transaction, Jabba came to the realization that his old acquaintance had descended into madness with age, developing a paranoia that every member of his household was acting as a spy for his rival, Vu Chusker. Cabrool purchased Nampi's vessel through Jabba, but then requested that Jabba, as a personal favor, assassinate Vu Chusker. Jabba declined, asserting that he was not Cabrool's subordinate to be given orders. This refusal ignited Cabrool's fury, leading him to order Jabba's imprisonment in the dungeon.
Although no one in Cabrool's household was indeed a spy working for Chusker, Cabrool's paranoia about being targeted was not entirely unfounded. His own children were independently plotting to seize control of their father's criminal enterprise. Rusk liberated Jabba from his confinement, explaining that his father had been exhibiting signs of insanity for several years. Rusk then convinced Jabba to murder Cabrool in his sleep. Later that night, Jabba entered Cabrool's chambers as he slept, proceeding to smother him with a pillow. Cabrool resisted and summoned two of his bodyguards. However, instead of defending their employer, the bodyguards assisted Jabba in suffocating Cabrool.