Looking for a parody video.?

There was an article I read somewhere involving shooting parody games (including Duty Calls and "Close Range") and there was one that linked to a youtube video where it looked like it was a half life 2 mod. There was a dis-embodied voice walking the 'character' through the video and near the end it had red scrolling text all over the walls and ceiling. The entire video was about killing people (in a school setting?). I can't find this video anywhere, and it'd be great to use in a presentation I have regarding violence in video games and how some people say video games "train" gamers to become murders and such. If anyone can link the video, it would be greatly appreciated.