A month after, Gabriel Afton's youngest sibling died.
July 14, 1983, the day of Cassidy's birthday, was supposed to be filled with joy and celebration. However, the festivities took a horrifying turn when a mysterious figure, posing as the beloved character Spring Bonnie, lured Cassidy and her friends into a secluded room, armed with a deadly knife.
The innocent children, unsuspecting of the danger that awaited them, followed Spring Bonnie into the dimly lit room, unaware of the horrific fate that had been planned for them. As the door closed behind them, the sinister figure revealed his true intentions, brandishing the knife and unleashing a wave of violence upon the unsuspecting youngsters.
In a brutal and senseless act, Spring Bonnie mercilessly slashed Cassidy's neck, leaving her young life extinguished in a pool of blood. The other children, caught in the chaos, were not spared. Frederic was stabbed in the stomach, Fritz was impaled through his left eye, Suzie's chest was pierced, Jeremy's stomach and throat were slit, and finally, Gabriel Afton, the son of the notorious William Afton, met his tragic end with a blade piercing his chest and throat.
After the carnage, the killer, still clad in the Spring Bonnie suit, stuffed the lifeless bodies of the children into the animatronic suits that had once brought them so much joy. With their lifeless forms sealed within the mechanical confines, the children's spirits were trapped, forever bound to the animatronic shells that would become their eternal prison.
Gabriel Afton, the only one to witness his father's murderous rampage, was left to succumb to his injuries, his last thoughts consumed by the chilling realization that his father, the man he adored, had been the one to inflict this unspeakable horror upon his friends and himself.
The once joyous birthday party had turned into a macabre scene of death and despair, forever etched in the memories of those who witnessed the tragedy. The innocence of childhood had been shattered, replaced by a chilling reminder of the darkness that lurked beneath the facade of an innocent pizzeria.