The interpretation that sticks with me is that they both acted imprudently upon an emotional need to prove something. I sense anger, fear, resentment, immaturity, and foolish bellicosity to varying degrees on all sides. At the end, though, one was able to walk away and tell his tale and the other one was not, and because the one that is dead seems to have struck first, there really isn't much that can be done. That doesn't make it right either. It cannot be made right.