John Travolta and Kelly Preston
01/03/2009 at 09:00 PM EST
A day after the death of his son, Jett
, John Travolta and his wife Kelly Preston remain in shock, a friend of the family tells PEOPLE.
"He never dreamed of this – their relationship was so close,” says family attorney Mike Ossi, who is in the Bahamas with the actor. "He always said 'I'm happy as long as my kids are happy.' He is heartbroken … To bury your son is the worst thing you can ever do."
According to Ossi, 16-year-old Jett was discovered by a nanny on Friday morning around 10 a.m. After the nanny called 911, John Travolta tried in vain to resuscitate his son.
"He didn't want anything to happen to that boy, and he kept on trying to revive him," said Ossi. "He did mouth-to-mouth until they had to physically remove John to take Jett to the hospital."
The teen, who is the only son of Travolta, 54, and Preston, 46, has a history of having seizures. Police spokeswoman Loretta Mackey told the Associated Press that Jett hit his head in a bathtub Friday morning and was declared dead at Rand Memorial Hospital.
According to Ossi, around 5:30 p.m. on Jan. 1, John said goodnight to his son, who was tired from a long day spent on the water with his family. Jett went to his room with his nanny. "He always had a nanny by his side because he had a history of seizures," says Ossi. "John took extra precautions. [Jett] was never alone."
Mike McDermott, John's corporate counsel, adds, "John did everything in his power to revive [his son.] John and Jett had a very strong relationship. Words cannot explain how close they were. This will take a lot of time. His life will never be the same again."
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