Board Thread:Castlevania Wiki General Discussion/@comment-5136744-20130319162823/@comment-86.43.97.228-20170127144915

Miss Murder may be based on a Japanese Ubran Legend: http://www.scaryforkids.com/kuchisake-onna/

The large scissors, and the fact that Miss Murder seems to have an extended mouth supports this.

As for the name, perhaps the localiser made the AFI refence as an in-joke.