The head of Italian defence and aerospace giant Finmeccanica, Giuseppe Orsi, resigned on Friday in a bribery scandal over the sale of helicopters to India as investigators questioned him in prison. Orsi, who was arrested on Tuesday over alleged bribes paid to secure the sale of 12 choppers, also stepped down as a member of the board and presented his resignation letter to judge Luca Labianca, who heard his testimony behind bars.