sentences:  On 12 July in 1963, a group of some 70 to 90 detainees rioted and burned down most of the buildings of the prison-settlement.Just before things went out of hand, Dutton still had the chance to call for police reinforcements from the mainland as well as seek assistance with the Marine Police, but by the time he realised the situation was out of control, it was too horribly late.The prisoners went straight towards the prison-authorities' quarters and, with axes and hoes ("changkuls"), had Dutton brutally hacked to death, mutilated his corpse, and killed two other prison-officers.