Opened in November 1994, the facility sits on the outskirts of Florence ... or otherwise unreformable. Many ADX prisoners live in near-continuous solitary confinement inside a soundproof, 7-by-12-foot ...

ADX Florence is widely-regarded as the world's ... to kill Hillard in a facility where inmates spend 23 hours a day in a cell moulded from a single piece of concrete, only being allowed out ...

When President Donald Trump commuted the federal prison sentence of former Chicago gang leader Larry Hoover, it may have marked the first time a form of clemency was granted on a current inmate of the ...

Robert Hanssen, the former FBI agent who was serving a life sentence for being a Soviet and Russian spy, was found dead in his prison cell Monday ... in custody at ADX Florence since 2002.

No one has ever escaped from ADX Florence prison. Since ADX inmates can't be trusted with anything that could be broken down and made into a weapon, all the cell furniture is solid concrete and ...

Just two hours outside of Denver, in a concrete pit among Rocky Mountain foothills, sits the highest-security prison in America. Its official name is the U.S. Penitentiary Administrative Maximum ...