sentences:  Once prison-authority collapsed, the convicts began a mass celebration as though they had just conquered the island from their former captors.Shortly thereafter, police back-up arrived on the island and quickly secured what was left of the penal settlement and all of the prisoners (none attempted to escape from the island despite having the opportunity).In the wake of the riot, 58 prisoners were accused of rioting and murdering Dutton and his staff-officers, Arumugan Veerasingham and Tan Kok Hian.