It should have been the holiday of a lifetime. Instead, it became their worst nightmare.

In 1994, Maggie and Reg Green and their family made international headlines for all the wrong reasons. On holiday in southern Italy, they were ambushed by bandits on a remote road and their young son Nicholas was shot. Left brain-dead with no hope of recovery, Nicholas presented his grieving parents with an agonising decision: should they allow Nicholas' organs to be used for transplant? It was a situation that would spark a media furore and enormous controversy.