I was in that Air Wing after DS as a Dept Head in the viking Squadron and in fact I'm very good friends with his room mate so I was very familiar with the issue. Spike's status was MIA for years, but during the clinton era, we had SOLID intel he had been captured, so a plan was put together to insert a team to the crash site to ascertain. The Chairman (JCS) at the time, that "showmeyourwillie" dude, disapproved it. Bottom line is we'll never know.
Wow. How terrible for his family.