there were only 5. william afton put the bodies into the WITHERED animatronics, not the toy ones, because they were using the toy animatronics, while the withereds were just sitting in the back, decaying. don't you think the guests and employees and those guys would have noticed if there were a bunch of dead bodies in the animatronics? in night 1 of fnaf 2 phone guy explains that they have a facial recognition system linked to a local criminal database for the safety of the children. and the puppet, being the first victim of william afton, wanted revenge, so she decided to turn his own creations against him. however, he was not convicted of anything yet, so his face was not in the criminal database. his only distinguishing feature was his purple security vest, so the puppet reprogrammed the facial recognition system in the toys to attack anyone wearing one, which is why the toys attack jeremy during the night shift. this also caused the bite of '87, because he was assigned to watch over a birthday party on the resteraunts last day. phone guy instructed him to "wear the security outfit, and stand close to the animatronics." so you can imagine how that would turn out.