We re back with the mysterious death of three americans in the bahamas. they were found unresponsive in two different villas at an exclusive five-star resort kerry sanders is there and spoke with the guests who knew the victims. reporter: on the island paradise of the bahamas, a mystery is still unfolding. why are three american tourists who stayed at the sandals emerald bay resort, dead hotel guests we spoke with say the two couples did not know each other, were on either side of a split beachfront villa at least one couple had complained to friends about nausea and dizziness. it is a tragic situation, and it s really hard to wrap your brain around. reporter: the resort posts the villas can cost thousands a night. kevin and kara from nashville say they had made friends with vince and donna, who were celebrating a 40th wedding anniversary. very sweet couple sorry.