fingerprints in the room, and the dog couldn't pick up shirley's scent anywhere outside the room. the next day, the local newspaper ran the story. >> it was a missing persons story. the story in the headlines and the questions were, what happened to shirley garvin? >> media reports generated several potential sightings, but none were shirley. police continued to search the entire island of key west, which is only six square miles. and they found a pair of women's sandals on the beach, which looked similar to ones shirley wore, leading to speculation that shirley may have had a swimming accident. and investigators learned another troubling fact. mike garvin's previous wife had committed suicide by hanging herself in the basement of their home. mike was the one who found her body.