Nicola Sacco and Bartolomeo Vanzetti were Italian-born American anarchists who were convicted of murdering a guard and a paymaster during the armed robbery of the Slater and Morrill Shoe Company on April 15, 1920, in South Braintree, Massachusetts, United States, and were executed by the electric chair seven years later at Charlestown State Prison. Both adhered to an anarchist movement that advocated relentless warfare against what they perceived as a violent and oppressive government.