I believe that Sacco and Vanzetti were both innocent and were treated unfairly for the fact that they were convicted because they were immigrants and the only person that said something on them was a man who was in jail for murder
A paymaster and a security guard are killed during a mid-afternoon armed robbery of a shoe company in South Braintree. Sacco and Vanzetti were arrested on suspicion they were colleagues in the robbery.They were convicted and put on death row.
This conviction caused an uproar in the socialist and radicals resulting in a bunch of protests including bombs sent to the Paris U.S. embassy. All attempts of a retrial were shut down resulting in the conclusion it was racially biased.