The "Cella Zero" is an empty room in Naples prison, where, according to those who have gone through the experience, inmates are brought to be beaten by prison officers. In some cases even fatally. For the first time, former detainees have publicly recounted their personal experience of violence in the prison. Federico Perna died in Naples prison on 8 November 2013. The official autopsy cited ischemia as the cause of death. But his mother Nobila does not accept this. The body of the thirty-four year bore visible signs of beatings.