Ric Gillespie has been chasing the same lady for more than 12 years. Now he reckons he knows where she is. If he's right -- and the evidence his foundation has collected is pretty compelling -- then one of the longest-running mysteries in the history of aviation has been solved.

Gillespie believes he knows what happened to Amelia Earhart. And he's close to proving it.

Since July 2, 1937, when Earhart and Fred Noonan, her navigator, disappeared over the Pacific on her second attempt to circle the globe close to the equator, there have been dozens of theories -- some backed by evidence, others wild speculation -- as to precisely what happened after they took off from Lae, New Guinea.