During a mission to Gaftikar to eliminate Advanced Recon Commando Sull, who deserted from the Grand Army of the Republic, Moz and Olun were killed by RC-1136, who they mistook for Sull.
Overcome by the guilt of killing one of his own brothers, 36 said their names everyday, the Mandalorian style, to keep their memories alive.
- The Complete Star Wars Encyclopedia