GRANDPRENTS RIGHTS & BILLYS LAW

HI IAM A TERMINALLY ILL GRANDMOTHER WHO'S GRANDSON BILLY WAS ABUSED BY HIS PARENTS . I AM NOT ALLOWED TO SEE HIM BECAUSE GRANDPARENTS HAVE NO RIGHTS IN SOUTH CAROLINA BUT THEY LET THE POEPLE WHO ABUSED HIM SEE HIM AND THEY WERE NEVER CHARGED WHY? IDON'T KNOW?SINCE THEN HE HAS BEEN IN 7 FOSTER HOMES ALL I WANT TO DO IS BE HIS GRANDMOTHER & SEE THE ABUSERS HIS PARENTS BROUGHT TO TRIAL WHY DOESN'T THE SYSTEM WORK I HAD AN EARLIER PETION CALLED BILLYS LAW BUT SOME HOW IT GOT LOST THIS I MY DYING WISH PLEASE HELP ME I BEG OF YOU!!!!!!!!!!!!!!!!!!!