John Travolta and his wife, Kelly Preston, are remembering their “sweetest” son, Jett, on what would have been his 28th birthday. Jett died in 2009 following an accident while the family was vacationing in the Bahamas. He was 16. On Monday, Travolta posted a black-and-white photo showing him and Jett sharing a loving embrace. “Happy Birthday Jetty! We love you! 
,” he captioned the …
