A mother is freaking out about a story. It's a story woman, not children planning a murder. We have seen enough of the real world and shows to find creativity with death.
We use name based off of anyone, everyone really. It's a book we use "real" names because it's easier than coming up with one. Plus there is no such thing as a "fake" name. We can make one up because we may not know them but someone somewhere does. It's not going to freaking matter!