Giuseppe Diana was an Italian Catholic priest and writer from Casal di Principe who lived from 1958 to 1994. Known affectionately as Father Peppino, he was a prominent critic of the Camorra, a criminal organization. He actively worked to protect his community by establishing a center for African immigrants to prevent their exploitation by gangs. His courageous stance against local organized crime and his refusal to cooperate with criminal elements eventually led to his assassination while he was preparing to celebrate Mass.