So when William Afton was still alive after Freddy fazbears burnt down William Afton went back to destroy the animatronics. but, it backfired and the spirits came after him and he ran to a secret room and the spring bonnie suit was there and that was the only way away from the ghosts of the children so he went in the suit and started to laugh.. and thats when the springlocks set in his skin and killed him (30 years later) ppl came to the location and opened the secret room and found that then they took him to Fazbear Frights and after the fire there he escaped to your pizzeria (Pizzeria Simulator) and after the five nights and stuff and the fire comes he burns and goes to Ultimate Custom night and later stays at Ultimate Custom night witch is his hell (William Aftons Hell)