just really good hearted. >> reporter: donna chiarella survived and was airlifted to a miami hospital> we were total was that donna woke up feeling paralyzed. >> reporter: paralyzed >> paralyzed is what was reported to us couldn't move. said her arms and legs were swollen and she could see him laying in the floor. >> at this point it may be he was dead at that point >> it could be, yeah. >> reporter: health experts say dizziness, nausea, temporarily paralysis are symptoms that suggest carbon monoxide poisoning. bahamian police are examining the villa's water heater and air conditioner and the propane supply the yellow crime scene tape has been taken down. the resort remains open. most guests unaware of what happened >> my biggest concern was three people passed away within several hours of each other, all in the same villa. another one became very ill. so am i safe to go to sleep at night? >> reporter: sandals management says it's sending its condolences to the families involved meantime, a government autopsy may reveal what killed these americans. >> our thanks to kerry sanders for t

kevin and cara rainbolt from nashville say they had made friends with vince and donna chiarella who were celebrating a 40th wedding anniversary >> very sweet guy. sorry. very sweet couple. just really good-hearted >> reporter: donna survived and was airlifted to the hospital. >> we're told donna woke up feeling paralyzed. >> paralyzed >> paralyzed is what was reported to us said she couldn't move, her arms and legs were swollen and she could see vince on the floor. >> at this point he was maybe dead at this point >> it could be health experts say dizziness, nausea, temporary paralysis are symptoms that suggest carbon monoxide poisoning but bahamian police are examining theville a's water conditioner and th crime scene tape has been taken down the resort remains open. most guests unaware of what's happened >> my biggest concern was three people passed away within several hours of even other, all in the same villa. another one became very ill. so am i safe to go to sleep at night? >> sandals management says it's sending its correspondences. meanwhile time, a government autopsy may we veal

donna were from florida. they were not vacationing together. the phillips were staying in one villa at sandal's emerald bay the chiarella's in the neighboring oneouples ate at separate restaurants at the resort and settled in for the evening. that night police say both couples were not feeling well. in fact, they felt so sick they had to be treated at a local medical facility. their symptoms included nausea and vomiting. at one point, they felt well enough that they could return here at the resort. the next morning, police got an emergency call from the staff here at sandals saying they had found unresponsive male in one of these villas. then, another call. saying the staff had also found an additional unresponsive male and female in a second villa located right next door. in the first villa, police found vincent chiarella lying on the floor and he was pronounced dead. his wife donnis was alive and transported to a hospital in miami where as of monday she was in fair condition. her son said this, she woke up and my dad was lying there on the floor. her legs and arms were swollen and she couldn't move and she screamed to get someone to come in t