Jonna was a male being who existed in the era of the Galactic Civil War. He was a member of the salvage crew led by Nagem Dr'Lar, whose purpose was to locate wreckage from the obliterated Imperial Death Star within the wilderness of Yavin 4.
In 1 ABY, Jonna realized he had misplaced a cherished family possession and returned to a previous salvage location to find it. When Jonna failed to reappear, Dr'Lar requested a spacer to look for him. The spacer located the salvage site, which had been ravaged by a scavenger assault, and saw a trail of blood leading into the thicket. Close to the work site, the spacer discovered Jonna's remains and delivered the unfortunate information to Dr'Lar.