In 1992 the boss Giovanni Brusca tried to open a first negotiation through the mafioso Antonino Gioè (who will be one among the killers of Capaci bombing), which was put in contact by Bellini, an art trafficker linked to secret services. Through Gioè, Brusca made know to the Carabinieri Marshal Tempesta that, in return of the recovery of other precious artworks, he wanted the agreement of the house arrest for five mafiosi bosses, among which the father Bernardo Brusca. The Marshal Tempesta asked to his superiors, the Colonel Mario Mori and the Captain Giuseppe De Donno, and the answer was that "the request is unacceptable". Then Gioè threatened that they could have hit the Italian artistic heritage, referring to an attack against the Leaning Tower of Pisa.