I also think it may be coupled with PTSD as he was German Air Force Special Ops, and saw some horrendous things during the war in Somalia. I want to begin researching it a bit and see if there is any correlation between the two.
Lola, I'm not sure if you were looking for a correlation between PTSD and MLC, but, even if he doesn't have PTSD, different people handle those kinds of things quite differently. Being it Texas, you should be able to find someone who has been working with US soldiers and gain some insights that might be useful.