Tisocco, a male Reussi individual, was employed by the New Republic Intelligence. During 6 ABY, he participated in an operation, under the command of Major Bren Derlin, aimed at shutting down the illicit organ harvesting operation targeting the Reussi, orchestrated by the crime lord Torel Vorne and the Reuss Corporation. Serving as a protector, he piloted the team's speedervan and adopted the guise of a sound engineer for Colonial News Nets reporter Fionna Flannis, who was also an NRI agent. He incapacitated a Defel thug working for Vorne when the henchman attempted to cut short Flannis's inquiries regarding Vorne's actions during a well-publicized interview with shockboxer Lobar Aybock before a fight.
Subsequently, during the same mission, Tisocco sustained a gunshot wound to the shoulder inflicted by the same Defel, who had been dispatched by Vorne to eliminate Dansra Beezer, a fellow agent and slicer. While Tisocco recuperated from his injury, the Defel was killed in the confrontation.