NO!!!
I live an hour away from Columbine. I've seen the people it has hurt.
You don't need to show people this. This isn't acceptable, this is selfish. Do you really think any of those people you fantasized about killing have perfect lives? No. They have their own problems just like you. It isn't right for people to take out their frustrations on others, but it is far worse to retaliate in the way you fantasize.
I know why Eric Haris and Dylan Klebold did what they did. But it didn't fix their lives. It didn't show anyone a lesson. The media is still full of violence, schools are still full of bullies. They were just a flash in the pan.
Please don't show people this. The more one fantasizes, the closer one gets to doing this. You know its wrong... Take it down. Do it out of reverence for all the kids at Columbine. And if that makes you angry, then do it for all future Shooters everywhere.