In 1995 there are several stories of remains found in North Korea and Vietnam. They were first transferred to South Korea. Those that could be identified as American were repatriated. But might the date and place of death have been recorded as South Korea if that is where the identity took place? I have not seen anything that shows the Sr Deangelo as MIA. But maybe that just hasn't been dug up.I'm wondering why he dropped out of high school as he did go on to get his GED and then earned a Bachelors. If these are indeed his parents who divorced and their divorce was in Sept. 1964 (not confirmed) and his mother remarried in February 1965 (confirmed), that would be a very fast turn-around and if there was a cross country move thrown into the midst, and a new school, that would be a lot for any teenager to absorb.
I can't confirm that this is the divorce record of JDD's parents, but it could be. I did read an article when the story first broke that someone who knew JDD in Exeter reported that JDD moved to California with his stepfather and his mother while in high school. I could try to locate that article if you wish and post it here.
ETA: I found the article - see #4. The son of his stepfather's employer is one who is quoted stating JDD moved to Auburn. CA with his mother and stepfather when he was in high school. I've seen a picture of his senior picture from Folsom High. This article states that he graduated from Folsom, but other sources say he received a GED.
How would a wife move on and remarry with a spouse who was listed as MIA? Would they have to file a divorce?