Nineteen men are ultimately charged with Hennesy's…
October 1890 CE
These included Charles Mantranga, who is charged with plotting the murder, and several of the Mantranga's friends and workers.
Pietro Monasterio, a shoemaker, was arrested because he lived across the street from where Hennessy was standing when he was shot.
Antonio Marchesi, a fruit peddler, was arrested because he was a friend of Monasterio's and "was known to frequent his shoe shop."
Emmanuele Polizzi was arrested when a policeman identified him as one of the men he had seen running from the scene of the crime.