Defying Silence: A Memoir of a Mother's Loss and Courage in the Face of Injustice

Sadly, yes, other women have become SMBCs because their partners have either killed or hurt their children. Hera McLeod is advocates for the protection of children and she has two kids as an SMBC. She describes similar feelings to you and his death doesn't change still being a mother to him. Trigger Warning this article explain what happened and she also wrote a book