One of Britain's most dangerous serial killers Robert Maudsley has been in solitary confinement in a glass cell since 1979.
He is is Britain's longest-serving prisoner, having been caged for 49 years for the murder of four men in the 1970s and is set to die in an underground glass box after an appeal to live alongside other prisoners was rejected.
He carried out his own wave of vigilante justice, even killing three of his victims while in prison. Despite the confinement, the serial killer said that he was "happy and content in solitary" and warned that he will kill again if ever released.
