It says the couple were veterans implying they are out of the service. How long and was there any connection to their service? I do know a few alcoholics with civilian jobs from the AF connected to drones and AC-130s.
Most of these guys were young and saw more than I ever hope to see. If you seek mental care you lose your rights and maybe your family. Self medicate you lose everything. I personally don't get people that at one time at least, had honor, killing their families.