Cuban revolutionary leaders eldest son fidelito commits suicide resembling father #comments
I couldn't find any information or credible sources suggesting that Fidel Castro's eldest son, Fidelito, committed suicide. Fidelito, whose real name is Antonio "Fidel" Castro Díaz-Balart, is still alive.
It's possible that you may be thinking of another person or mixing up information. Fidel Castro's family has been the subject of much speculation and controversy over the years, but there is no credible evidence to suggest that Fidelito has committed suicide.
If you could provide more context or clarify what you're referring to, I'd be happy to try and help you further.