This must break his heart
This entire thread breaks my heart. I cannot imagine treating one child or one grandchild differently than another. My lovely DDIL once told me that she worried how her baby would be treated if she and DS had a child, Kady is so special. I had to explain to her that her baby would be my son's child, I did not need any more reason to love that baby.
Dawn, I cannot even express how sad I am for your kids, especially the son who was hurt. Remember that they will remember when they are older, there is no way that old goat can make up to them the hurt she has done but they will never be able to feel the same as they do for you Mom. The old witch should take a step back and think about how this affects her son and why she treats his children this way.
I am not sure I respect your IL's for not speaking up and telling that woman that enough is enough.