Executed at Wandsworth Prison on 25 June 1942. August Sangret, the "Wigwam Murderer": Also executed at Wandsworth Prison on 29 April 1943. Charlie Kerins, Chief of Staff of the Irish Republican Army, for the murder of Garda Síochána policeman Dennis O'Brien. Hanged on 1 December 1944 in Mountjoy Prison, Dublin. John Amery, son of wartime Secretary of State for India Leopold Amery, and the first person to plead guilty to treason in an English court since Summerset Fox in May 1654. He was described by Pierrepoint as "the bravest man I ever hanged". According to the official prison record of the execution, later released and now stored in the National Archives, Amery greeted his executioner with the words "Oh! Pierrepoint", but the executioner took the proffered hand only to put the pinioning strap on, making no reply. However, this account is disputed, as Pierrepoint himself later stated in interview that the two men spoke at length and he felt that he had known Amery "all his life", and there is a story that Amery greeted Pierrepoint with, "Mr. Pierrepoint, I've always wanted to meet you. Though not, of course, under these circumstances!" Hanged at Wandsworth Prison, London, 19 December 1945. "Lord Haw-Haw", William Joyce, convicted as a traitor and executed at Wandsworth, 3 January 1946. Bruno Tesch, co-inventor of the insecticide Zyklon B used in the Holocaust. Convicted of the crime of complicity in the murder of interned allied civilians by means of poison gas by a British military tribunal at the Curiohaus in Rotherbaum, Hamburg. Executed on 16 May 1946 in . Neville Heath, the "Lady killer" executed at Pentonville on 16 October 1946. John George Haigh, the "Acid-bath murderer" executed at Wandsworth on 10 August 1949. Timothy John Evans, hanged at Pentonville Prison on 9 March 1950 for the murder of his daughter (he was also suspected of having murdered his wife). Timothy Evans received a posthumous pardon in 1966 for the murder of his daughter. It was subsequently discovered that the perpetrator was Evans' neighbour, John Reginald Christie, who turned out to be a serial killer. He was executed by Pierrepoint on 15 July 1953 at Pentonville. This wrongful execution is acknowledged as a major miscarriage of justice and was a contributing factor for the suspension of the death penalty in Britain in 1965 and its eventual abolition. James Corbitt, hanged at Strangeways Prison on 28 November