Amputee wins £125k on Who Wants To Be A Millionaire as answer reveals where he lost his leg

With a £125,000 on the line, an amputee on Who Wants To Be A Millionaire was able to answer a question thanks to an incredible story.
Gareth Kendall was playing for the six-figure sum and was faced with the question 'The ruins of Urquhart Castle stand on the banks of which loch?'