The stakes here are high for Gaskins and the government. Since the missing exhibit couldn't be recreated, Gaskins' dishonorable discharge and 11.5 of the 12 years of confinement that he's currently serving for having carnal knowledge of the pre-teen dependent of another soldier and other sexual crimes with an adult could be permanently wiped out. This is because the record of trial must be "substantially verbatim" in order for a punitive discharge and any confinement over 6 months to be approved. Given Gaskins' E-6 grade and time in service (9 years) at the time of his court-martial, no doubt the missing defense exhibit was not a slim document, meaning the record won't be found "substantially verbatim" without it.
I was the defense counsel on a case similar to this, and I can honestly say I wouldn't want to be in the government's shoes on this one right about now. Meanwhile, Gaskins remains in confinement.