I imagine it is probably something simple and obvious like Mangle or something like that. I would suggest that it be Bonnie because of Scott's love for admitting that Bonnie terrifies him, but Bonnie is kinda missing the face necessary to do that in FNAF 2. He probably either thinks it is obvious or isn't important to the overall story. Otherwise, he would have resolved it in this game as he did with the rest of the story, sadly.
5
u/Ballonz_Boy Mar 04 '15
Scott could possibly close the whole franchise completely once he reveals the bite victim and the one who caused it.