"10ft from where the Duke of York was standing." I've had 30-06 rounds zing by my head closer than that.
But I guess it never made the paper because I'm not a "Duke".
Amazing as it sounds, I suspect that these guards need more training with their weapons. Glocks are handled just like double action revolvers. Keep your finger off of the trigger until you are ready to shoot. It is almost impossible to fire a Glock if you keep your finger off of the trigger.
I bet the guard had his finger inside the trigger guard.