The ADX Florence Supermax is what Dzhokhar Tsarnaev would have faced if given life in prison. Colorado's Florence Supermax -Nicknamed the Alcatraz of the Rockies, as it seen as 'escape-proof.' -In the Guinness Book Of World Records as the globe's most secure prison. It is set in the middle of the desert and equipped with motion detectors, laser beams and pressure pads -Spans a 37-acre complex holding 400 of America's most dangerous convicts. Inmates are kept in solitary confinement for 23 hours