Nicola Sacco and Bartolomeo Vanzetti were two Italian immigrants, accused of murdering a serf-payer at a shoe factory in South Braintree, Mass., On April 15, 1920. The legal process caused an international scandal and sparked protests in Europe And Latin America, due to the scarce and insufficient evidence. Despite requests for clemency from all over the world, including the Pope, the sentence remained unchanged and the defendants were executed in the electric chair on August 23, 1927.