Why are we arguing over something fictional?
Because I'm trying to defend a theory I came up with. It seems as though it's the only possible turn of events because FNAF 2 takes place in 1987, while FNAF 1 takes place after that.
tl;dr:
Scott lied, it is a prequel.
Man wearing the golden freddy suit kills five children and stuffs three of them inside the toy animatronics. (don't know where the other two went)
Fazbear Entertainment got rid of the toy animatronics because they were all bloody.
They also got rid of the Mangle because of the bite that happened that same year.
They repaired the old animatronics and relocated to a third building (the one where FNAF 1 takes place)
The phone guy takes the night shift after the protagonist of FNAF 2.
The phone guy dies while recording a message for the next gaurd.
Next gaurd is mike.