Before becoming an astronaut, Walter Cunningham enlisted with the Navy in 1951 and served as a Marine Corps pilot in Korea, according to NASA.
Army Sgt. Christopher Shepler was identified early on as a person of interest when the parts went missing.
What happens when disaster strikes and the National Guard unit your state needs is overseas?
William Earl Cunningham, 69, was first convicted of deliberate homicide in March 2015 in the 2014 death of Nathan Horn, 40.
Load More