John Travolta's son Jett, who was only 16, died this morning in what is said to be a seizure related incident. Apparently he died after hitting his head on a bathtub from a seizure during a family holiday in the Bahamas.

Jett was hospitalized when he was 15 months old with Kawasaki disease, a rare illness that mainly affects young children. It's treatable but can have unforeseen complications, including lasting damage to the heart. Seizures have also been linked to Kawasaki, according to Aetna's InteliHealth site, so it's possible this event was linked to his illness.