Thomas William Johnson (1898 - 23 January 1939) murdered two residents of a boarding house in the delicensed Windsor Castle Hotel in Dunolly, Victoria, in October 1938. He was an itinerant labourer with a record of violence and petty crime. Johnson confessed to the brutal killings, but at his trial he pleaded not guilty for reason of insanity. He was convicted and executed at Pentridge Prison in January 1939. Johnson was the fourth of eleven people to be hanged at Pentridge Prison after the closure of Melbourne Gaol in 1924.