cher hughes had been missing for two months. ad anything to do with another american who left the island abruptly four months before cher. a man named beau. >> beau was quiet, an introvert. he was really a great guy. >> he kept a low profile since moving to boca from santa fe, new mexico in 2004. he was so quiet that no one noticed when he took off. >> and get in the boat and go, so they don't necessarily e- mail everybody and tell them they're leaving. it's easy not to be missed for a while. >> bo had sold his home to wild bill, another american in their group, famous for throwing lively parties many of them attended including cher's friend, kristin. >> i few he wanted to sell and move somewhere different. i assumed they came to a lower price and bo had just left. >> but still as keith thought back to the days bo moved out, an image kept returning to his house right after he had left. >> i walked in and looked around and it looked as if bo had gone to the store, not moved out. i went back and told my friends, i can't believe, th