https://centinel2012.com/2017/08/26/the-real-john-mccain-33-pows-faced-execution-for-treason-after-vietnam-until-nixon-pardoned-all-pows-mccain-was-1-on-the-list/
link to story of Nixon pardoned all pows
You forgot No Name and there will be more.
I was around back then. Nixon pardoned them. That's the one thing the Deep State didn't change about History.
2 books you can read…. Kiss the boys Goodbye and An Enormous Crime. Both about Vietnam and both mention the pardons from Nixon.