The Aruban newspaper Diario reported Thursday that Paul van der Sloot, 57, died of a heart attack on the Dutch island in the Caribbean. The paper's Web site says he collapsed late Wednesday after playing tennis and was declared dead at a hospital.
Van der Sloot's son Joran has been characterized by Aruban prosecutors as the only suspect in the case. No charges have been filed.
Holloway, from Mountain Brook, Alabama, was 18 when she was last seen leaving a bar in the Aruban capital on the final night of a high school graduation trip. No trace of her has ever been found.