platoon's battalion says he doesn't remember nash asking for help. >> i have no recollection of david nash ever telling me he had ptsd and needed help and... and if i had... if he had, i would have... i would have sent him to get help. >> narrator: nash's medical records show that he did alert fort carson doctors to his ptsd symptoms. in a questionnaire, he told them heas hing ghtmares, was constantly on guard, felt numb, and was worried he would hurt or lose control with someone. the assessment concluded he was a "current risk for harm to self or others." shortly afterwards, nash was discharged from the army, with no ptsd diagnosis and what's called an "other-than-honorable" discharge. this meant he was ineligible for medical care from the veterans administration. his commander thought he deserved the misconduct discharge. >> if an individual thinks that it's natural to come back and to lean on drugs and alcohol as a self medication... self-medicating process instead of going to seek help, he's wrong-minded. he's... he's not thinking through that very clearly. tharmyan't cure althe ills o