What was unusual about the execution by hanging of Andrew Carr, for the murder of prostitute Margaret Murphy, at Richmond Prison, Dublin, on July 28, 1870?
Answer: Carr’s body was decapitated by the hanging – reportedly because the hangman had miscalculated Carr’s weight and, therefore, the required length of rope. This was followed by a grisly three minutes of the body twitching.
Source: The Hangman’s Diary – A Calendar of Judicial Hanging by R Stockman