Just a few weeks later, Sheppard was arrested again, this time for pickpocketing, and detained at central London’s New Prison alongside Lyon. Despite the increased security, Sheppard was able to bust free again by slipping out of his handcuffs and sneaking out of the prison. The 1983 Maze Prison EscapeBetter known by those with Irish republican sympathies as the Great Escape, the Maze Prison escape was a 1983 maximum security prison break orchestrated by the Irish Republican Army (IRA), a paramilitary group seeking to end British rule in Northern Ireland. He’s currently serving a life sentence in ADX Florence, a federal maximum security prison in the Colorado Rockies. He pulled off his first escape in 2001 while serving a 20-year sentence in a maximum security prison near Guadalajara, Mexico.