1997

Peter Schibetta came to Oz to visit his father Nino on several occasions. Peter was grief-stricken when his father was murdered.

1998

He was sent to Oz as the new godfather of Emerald City with intentions of finding out who killed his father. Ryan O'Reilly informed him that it was Simon Adebisi, so Peter began a quest to get revenge on Adebisi. He even asked Miguel Alvarez to help him, but Alvarez refused. Then Peter was poisoned, and he returned believing it to be Adebisi who'd done it. He and Chucky Pancamo attacked Adebisi in the kitchen. Adebisi knocked Pancamo unconscious and then raped Peter. This sent Peter over the edge, and he began talking to his father. He was sent to the psych ward, but eventually crazy Adebisi join him there.

1999

Adebisi protected Peter from the predators of the psych ward.

2002

Having finally resolved the rape, Peter returned to Emerald City under the rule of Chucky Pancamo. However, Pancamo was stabbed in a fight with the Aryans. Intent on retaliating, Peter went to the Muslims for support, and Said turned him down. Then the other Sicilians turned their backs on Peter. He saw a golden opportunity to prove himself when he saw three Aryans in a closet. He attacked them, but instead they gang-raped him. He was sent back to the psych ward. He refused therapy, so Sister Peter-Marie got Doctor Gloria Nathan to talk to Peter about her own rape.

2003

Peter received word from an anonymous source that Ryan O'Reilly had killed his father back in 1997, and Peter became obsessed with revenge. Ryan ran into Peter Schibetta in the gym, where Peter revealed that he had given Father Meehan the "evil eye" curse the day he'd died (basically, the "evil eye" is when someone steals something of someone's and uses it to poison the person's body). Peter planned to curse everybody close to Ryan, and then Ryan himself. Peter went to play rehearsal as the new Macbeth, and confessed to Suzanne that he was having fun. However, he stole her car keys with the intention of cursing her. An hour later, Pancamo and the rest of the Sicilians dragged Peter into a janitor's closet and removed his eye, killing him.