Who is the British hangman who developed a new hanging technique and demonstrated it first at the Lincoln Castle in Lincoln, England?
William Frederick Horry: William Frederick Horry, also known as Fred Horry (December 1843 – 1 April 1872), was the first person to be hanged by Victorian hangman William Marwood, and the first to fall using the long drop method. William Frederick Horry:  He was hanged at Lincoln Castle, Lincoln, England on 1 April 1872, aged 28, for the murder of his wife, Jane Horry. William Marwood: William Marwood (1818 – 4 September 1883) was a hangman for the British government. William Marwood:  He developed the technique of hanging known as the "long drop".
William Marwood