Libero Grassi (Italian pronunciation: ['li?bero 'grassi]; July 19, 1924 – August 29, 1991) was an Italian clothing manufacturer from Palermo, Sicily, who was killed by the Mafia after taking a solitary stand against their extortion demands.
The businessman wrote an open letter to the local newspaper informing the extortionists that he was no longer willing to pay pizzo, a Sicilian term for protection money.
Other business-owners and shopkeepers in Palermo refused to join his public campaign.
Grassi was gunned down in the street near his home eight months after writing the letter.
Grassi was born in Catania, was married, and had a son and daughter.
Following his death, his family have continued his campaign, lending their support to the Addiopizzo movement that is against pizzo.