Four members of the Casalesi clan are investigated for three murders which took place in 1993, in particular for those of Antonio Russo and Sergio Bruno killed in Pianura on 20 October 1993, and for the murder of Gennaro Barba , killed at Villa Literno seven days later.

Among them three collaborators of justice Domenico Bidognetti, Pasquale Vargas and Vincenzo Cantiello.

According to what has been ascertained, the three murders would have occurred in the context of the conflict between the Neapolitan clans Lago and Contini for the control of illegal activities in the Pianura district.
To act, hitmen from the Casalesi clan would have done a favor to the Lagos, while the victims were believed to be close to the opposite faction.