and the slow deterioration of the main facility, prison officials closed the old building, and inmates were moved into newer facilities on the compound in 1998. it marked the beginning of a safer and more stable environment at the penitentiary. >> in comparison to the past experiences that this department has endured, there is a drastic change for the better. we have controlled the prison. the violence levels have been decreased immensely. the department is a lot safer for the staff and the inmates and everybody that is interacting with the department. next on "lockup." >> had that guy not been there to save him, i probably would have killed him. >> we'll take you into level 6, the maximum security unit where the worst of the worst do their time. with 0-calorie monk fruit in the raw. ♪ welcome back [ male announcer ] it's made with the vine-ripened sweetness of fruit, so you can serve up deliciously sweet treats