Today, Stirling Castle is a tourist destination nestled in the quiet hills of Scotland, but in 1304 it was a war zone. It was then that, after years of intermittent clashes, the English captured the castle during a violent siege. Now, a new investigation suggests that one of the shattered skeletons of this battle could be the first confirmed victim of the fearsome war catapult known as a snag. The extensive injuries of this shattered skeleton, c…