The grandkids could inherit the grandparents will if their father was dead and that could well have been one of the motivations. I wonder if the husband had a life insurance policy?I met someone who was murdered over $4000 so I won't say a house or so couldn't be an inducement. However, outside of wealthy families I think it would be unusual for grandchildren to inherit alongside or ahead of the son. I hadn't considered the possibility of anything coming from the Wilkinsons. It seems to me it would be rather far-sighted and even imaginative for Erin to have expectations here.