John Travolta Jett and John together in Paris just a few weeks ago

Kelly Preston's mother Linda Carlson and her half-brother Chris Palzis have opened about 16-year-old Jett Travolta's tragic passing. Linda tells OK! Magazine, "He was one of the most special, loving boys. I thank God I had time to spend with him before Christmas." Chris added, "We're all devastated. It's definitely a bad time. That's all I have to say."

Also, here's an update on Jett's autopsy, which will be conducted on Monday. The Grand Bahamas health minister confirmed to TMZ that two pathologists will complete the autopsy to ensure "a proper evaluation has been made." A U.S. certified clinical and forensic pathologist from Nassau will fly into Grand Bahama on Monday to help perform the autopsy, and if everything goes as planned, we can expect results as early as next week.