Officials say the suspect was on his fourth shift . He suffered a traumatic brain injury in combat in Iraq but was cleared for duty . Psychiatrist The forensic psychiatric review process at the base 's Madigan Army Medical Center is being reviewed . : It 's unlikely the suspect was suffering from post - traumatic stress disorder .
Officials say the suspect was on his fourth shift . He suffered a traumatic brain injury in combat in Iraq but was cleared for duty . Psychiatrist : It 's unlikely the suspect was suffering from post - traumatic stress disorder .