(ANSA) - Vatican City, August 30 - Lawyer Carlo Fusco has quit as a defence lawyer for Paolo Gabriele, Pope Benedict XVI's former butler who has been charged with stealing secret papal documents. Fusco cited "differences" with others on the defence team in confirming Thursday that he was quitting the case. Gabriele was arrested last May and charged with stealing documents that were than leaked to the press. A second defence lawyer, Cristiana Arru, is still on the case. But sources tell ANSA that Arru is "considering" what to do. Also indicted in the case is IT expert Claudio Sciarpelletti, who stand trial for aiding and abetting Gabriele. There has been speculation among Vatican experts and the media that Gabriele is a pawn of a power struggle between cardinals. Gabriele reportedly told prosecutors that "evil and corruption everywhere in the Church" had prompted him to act.