The execution took place in the large hall of the jail, used as a dining-room, and was witnessed by about 300 persons. The gallows was erected at the north end of the hall, and consisted of a cross-beam supported by two uprights. A rope, to the end of which was attached a hook, passed over a pulley in the centre of the cross beam, and thence down one of the uprights through the floor. Attached to the end were five fifty-sixty pound weights, held by a catch, so arranged that by springing it with a treadle the weights would fall a distance of six feet.