They also provide no source, and they published after it was published here. Not reliable.

"Não há detalhes sobre a causa de sua morte" = "There are no details about the cause of death".

Ok, come on. Both here and on Wikipedia people are posting links to blog posts or minor news sites that supposedly "support" the claim. But these are clearly instigated by the original Wikipedia edit itself, so that they don't provide any additional proof.