Unless the deceased indicated otherwise in his will, all of his property should go to his wife, who is the first legal heir, especially if the children are still minors. Of course, if the deceased explicitly wrote that he was leaving his CEX account to someone personally, then the matter is completely clear.

However, sometimes, even in the case of a clearly written will, some people file objections because they do not agree with it, which in some cases can even result in the will being declared invalid (forged). There is nothing people aren't willing to do for money, even within the family.