After reportedly following i will. rachel: a fourth american is treated at a hospital. will: andrea haugh says the foul play is not suspected. reporter: they appeared no signs of trauma but suffered convulsions. one men identified as vincent tirella from birmingham, alabama. his wife was injured there. transported from the sandals emerald bay resort. she is undergoing treatment. not clear how the people died other than their deaths were sudden. one of the couples attempted to get medical attention the night before. health officials initially feared whatever happened was widespread. we thought we would have to make a makeshift facility, a mini hospital. that is proving to be not the case. we believe it is some isolated situation that revolves four people impacted.