That's understandably a way for them to cope with his disappearance, or they know he's still alive but not saying. Either way, it's still not proof that he was killed. He could've died from old age by now, which would mean that he still faked his death.
Yes it also has some legal consequences idk, but I believe his family knows they are true 'Cosa Nostra'.
He would be 78 and still travelling through DR. South America, USA, Europe lol..
