I don't want to try and say that John's experience was at all indicative of what happens to Combat vets who return home. However, if you are looking for personal stories of Vets who came home Changed, John's fits the bill.
John and my father were best friends in High School, growing up in Japan. They two sisters (my mother and her older sister), and they both Joined the Navy during Vietnam.
They both went into Aviation. Dad spent the duration of the war in training in the states, but John was deployed on the USS Enterprise (CVN-65), when the ship suffered an accident causing a major fire that killed 28 crewmen and injured hundreds of others, including poor John.
That's pretty much the end of the clear information I have about him. The family stopped talking about uncle john by the time I was 6. When he came back, he was a rather different man. He abused his wife and kids, and ultimately wound up in jail on account of that abuse. The family was totally destroyed. His son, my cousin was institutionalised as a kid, and last I heard was in jail. His wife worked the rest of her too short life as a waitress, and I've lost track of his daughter.
People go through a lot of changes in the years form 18-22, and maybe John was just a time bomb no matter what. Whatever the reason, he boarded that ship as my father's best friend and my uncle, but he departed that ship a total piece of **** monster.
-Sik