Fan Casting Kill the Parent, Raise the Child in Sort by Tropes

When a parent is murdered, the last person one would expect to take in their newly orphaned child is the murderer. But sometimes that's exactly what happens. It creates an interesting juxtaposition regarding the killer: the same person who took one life is now nurturing another. It also inverts the expectation that a victim's family member will naturally become an enemy of the killer since they instead become the killer's family member. There is a lot of potential for complicated and conflicting emotions within the relationship between the adoptive parent and the child.