For more than a decade Europe's most wanted man, Radovan Karadzic, evaded the combined efforts of western intelligence agencies, NATO peacekeepers and Hague investigators and maverick bounty hunters to track him down.

When everybody else seemed to have given the hunt, one journalist doggedly followed his trail, travelling from the snow-capped mountains of Montenegro to the killing the fields of eastern Bosnia to the corridors of power in Belgrade, in search of the man accused of some of the most horrific crimes committed in Europe since the Second World War.