How many of the fourteen who died were tested immediately for traces of a) cordite/projectile propellant anywhere on their hands, face and clothes and b) any evidence of attempts to remove such traces? In Aden it was a rush to get to the bodies before their own 'clean up' squads got to them, removed firearms and tried to remove traces, it does happen.
Training Risky agreed, a political stunt, as was the apology, appeasement, nothing more.