When three guards entered the cell to escort the prisoner to the infirmary, three inmates opened fire with .38-caliber revolvers.
One of the guards was shot through the heart and died instantly and three inmates died in the ensuing shootout with the other two guards.
The prisoners first connected five of the prison's 14 cells by smashing large holes through the walls that separated them. Then, they gathered in one of the cells and crawled through a tunnel that they apparently had been digging for weeks, if not months.
That's one of the mysteries we have to solve.
Inmates called out to the guards saying that a prisoner was ill and had to be taken to the infirmary. When three guards entered the cell to escort the prisoner to the infirmary, three inmates opened fire with .38 caliber revolvers.