Retired Cmdr. David Fravor spent 18 years as a Navy pilot, but nothing prepared him for what he witnessed during a routine training mission on Nov. 14, 2004.
"I can tell you, I think it was not from this world," Fravor told ABC News. "I'm not crazy, haven't been drinking. It was — after 18 years of flying, I've seen pretty much about everything that I can see in that realm, and this was nothing close."