After four decades as one of the world's most notorious dictators, Colonel Gaddafi is now dead - just weeks after being forced from power. Panorama has uncovered shocking pictures and testimony, never seen before, that reveal the truth about the regime and its ties with the British government. Reporter Paul Kenyon tracks down the man responsible for much of the brutality, who fled to Britain during the recent civil war. Kenyon finds him at a luxury hideout in the Gulf, and challenges him to come clean about his role in torture.