Caserta, January 16 - Italian police on Wednesday seized assets from a businessman known as the "alter ego" of the founder of the Casalesi Camorra clan whose death threats have forced writer Roberto Saviano into police protection. Assets were confiscated and shares frozen in the Monza-based Eco-Art company owned by 63-year-old Caserta businessman Pasquale Pirolo. Pirolo, who is formally resident in Spain, acted as front man for Casalesi founder Antonio Bardellino in the 1980s. They were arrested in Barcelona in 1983. The Casalesis' criminal empire was exposed to the public by Saviano in his 2006 bestseller Gomorrah, later turned into a successful film. Since then, Saviano has been living under 24-hour police protection because of death threats from bosses including jailed chieftain Michele Zagaria.