The thing that has me suspicious about KE and HKS's family, is what she said during her first interview with ET. The first thing Howard asked her to do, when he called KE after ANS' death, was call his parents.
I wonder if in all of Aunt Bon Bon's interviews, if she ever said anything about KE?
I believe there is a family link through HKS to ANS... who knows, maybe she is an aunt, cousin, etc...