best known by the pseudonym Harry Orchard was a miner convicted of the 1905 political assassination of former Idaho Governor Frank Steunenberg. The case was one of the most sensational and widely reported of the first decade of the 20th century, involving three prominent leaders of the radical Western Federation of Miners as co-defendants in an alleged conspiracy to commit murder. was a miner convicted of the 1905 political assassination of former Idaho Governor Frank Steunenberg. The case was one of the most sensational and widely reported of the first decade of the 20th century, involving three prominent leaders of the radical Western Federation of Miners as co-defendants in an alleged conspiracy to commit murder.