Sylvester Stallone continues to cope with the unnatural act of outliving his son Sage, who was found dead last week at the age of 36. Sadly, there are several other celebrity parents who can relate to the Stallone family's loss. RELATED: New Details in Sage Stallone Death John Travolta and Kelly Preston's son, Jett, died in 2009 while the family was on vacation in the Bahamas. The 16-year-old was determined to have died from a seizure.
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