Sorry to hear you got second place
What I think this film lacked was ambiguity. I think it would've been better if the audience wasn't quite sure what the kids were going to do at the beginning. And you should've gone on with the 'is there a god' talk. I think the shooter should've said: "When you go to bed tonight, don't thank god you're still alive. Thank me for not shooting you." Something like that.
Overall it left a chill down my spine, which doesn't happen everyday with flash animations on Newgrounds. I hope this gets a permenent spot in the toons section of the site.