well I understand this was a tragic event, where many innocent people died. Now this guy has come along and created a poorly made game and put it on newgrounds. I find it to be nothing new. The only big difference is the significance of timing. After all, lets take, The Titanic. Many innocent people died b/c of the ignorance of men and their in ability to think that the ship could sink. Now we have have crappy movies and even crappier video games about it. I am willing to bet that if people tried to, if it was possible, make some sort of light hearted joke or entertainment by re-living the event people would have been outraged at that time. But look, here we are all these years later and its a blockbuster event, and made into crappy video games. And not one person complains, why? Because so much time has passed that it has become a non-sensitive issue with all those people dying.
Yes I am aware that people shot at a school is different then a ship crashing and sinking, however the example is that people, many people, died and it was a very emotional and tragic event.
My point is simple. When enough time has passed, that will allow this to become non-personal, and non-emotiona,l stuff like this will be given no more attention.