Wedding cake mystery It was a mystery more than 60 years in the making.      More than 60 years since LaMar and Julia married.      More than 60 years since they saved the top tier of their wedding cake.      Instead of eating it on their first anniversary, they kept it.      Pretty much forever.      For their forever.      Four grown kids.      Five grands.      One great grand.      Seven moves.      Two countries.      Each of those