Crying Child, often identified as Evan Afton, is at the heart of the FNAF story, and his tragic role in FNAF 4—along with the unsettling hints in The Survival Logbook—reinforces the theory ...

Although it's not confirmed, the Crying Child is implied to be one of William Afton's sons. If he had died first and was Afton's child, then it would make more sense for him to target Charlotte ...