http://www.columbinegame.com/
You can download it there.
I know alot of people have played the game already, but this is for people who haven't. This quote is sooo true about the game
"For me, this was one of the hardest games I've ever played. After 20 years of gaming, it's almost natural at this point to try and immerse myself in what I play, but doing so in this case was impossible. If anything, the constant cycle of playing the game versus thinking about playing the game - the association, then dissociation - helped to sharpen the line between game and reality, not blur it. The striking grimness of the contained events, combined with the memory of their transgression, created a very real pathos towards the victims, their killers, and having to deal with consequences for those of us left in the wake. It was certainly not the self-indulgent killfest that many have deemed it." - Dustin, SCMRPG player
I played it and that was EXACTLY my reaction. I usually get into the game myself, but I couldn't this time.
Seriously, play this game and see you don't do the same.