He was the victim of numerous physical assaults by security guards and violent prisoners.

That was when the State of California began sending its most violent prisoners there.

In another example, a violent prisoner I read about exhibited unpredictable behavior that authorities were unable to understand or control.

Other officials said it was a difficult choice among bad options for potentially violent and disruptive prisoners.

Why would the rock-creatures or even the soarers have wanted to feed on the most violent prisoners?

The jail system requires enough single cells to isolate potentially violent prisoners.

As a tattoo, this indicates a particularly violent or brutal prisoner.

The Correction Department, he said, is planning to add more space for violent prisoners.

The man catcher was also used to trap and contain violent prisoners.

He was then transferred into another federal prison with less violent prisoners.