John Travolta endured a parent's worst nightmare, but was able to come out the other side thanks in part to someone he calls a "beautiful kind of glue." Nearly eight years after the untimely passing of Jett Travolta, the actor's oldest child who died in the Bahamas after suffering a seizure at 16, the Life and Death of John Gotti star reflected candidly on the tragedy after nearly a decade.  "We certainly have bonded together," the actor said during an interview for Good Morning America. "Certainly having little Ben has been a beautiful kind of glue for us to rebond after a tremendous loss." Travolta and his longtime wife, actress Kelly Preston,...