First off, my condolences about your parents

The executor, executrix, or administrator should have divided those funds during the estate. But since they didn't seem to get that far, then the funds have either been withdrawn from the bank by other beneficiaries or it is Escheated.  After no customer initiated transactions (interest does not count) for five years, the bank is obligated to release the funds to the state in which the individual resides.  You would have to contact the state to find out if they were escheated or not.  But like I said, some one could have withdrawn the funds before that happened.

Good luck with everything