Howard Marks is Britain's most famous drug smuggler, having served seven years in an US penitentiary before going on to become the bestselling author of Mr Nice. A former Oxford physics graduate, he was released from prison in 1995. He had previously been connected with groups as diverse as the CIA, IRA, M16 and the Mafia. On release from prison he moved to Ibiza at the height of the clubbing scene. In 2014 he was diagnosed with terminal cancer. Mr Smiley is his last pill and testament.