sentences:  In 1821, three days after his eighteenth birthday, John Horwood was the first person to be hanged at the Gaol for murdering Eliza Balsum by hurling a pebble at her which hit her on the right temple and she then tumbled into a brook.English Heritage designated The Gaol entrance wall and gateway and the south-east perimeter wall as a Grade II listed building.It is now the centre-piece of a redevelopment project in this area of the city.