John Travolta's Son Dies in The Bahamas

Speaking for John Travolta, Ossi said, "This is the worst day of his life."

In this file photo, John Travolta and son Jett walk to a waiting helicopter at the Santa Monica...

In this file photo, John Travolta and son Jett walk to a waiting helicopter at the Santa Monica Airport in Santa Monica, Calif. Jett Travolta, 16, suffered a seizure and died suddenly at his family's vacation home at the Old Bahama Bay Hotel on Grand Bahama Island.

(Lucky Mat/Getty Images)

Ossi said that Dr. Mark Smith, the Travolta family doctor, plans to give a statement after the autopsy.

Related

What Really Killed Anna Nicole Smith's Son?

Common Chemicals May Have Autism Link

Debate Rages Anew on Vaccine-Autism Link

ABC News' Eileen Murphy, Lauren Cox and Kirk Fernandes contributed to this report.