While some people just love stirring up trouble, and escalating things, let's be calm. I for one fully understand how a tragic error like this can happen, and have nothing but sympathy for those involved: the family of this young chap, and equally well the policeman who fired these shots, I am sure with the best of intentions of saving his fellow citizens from a potential disaster.
   It is a tragedy, and can only be blamed on the climate of fear set up by these dreadful bombings. Which were the responsibilty if those who pressed the buttones.