K, so this story got even weirder. Apparently this narc is not doing this because he is a Utah fan. He is doing it because the football player was stealing (or trying to) his girlfriend.
I actually know the "booster" the story names, and he hates BYU, so I was confused by that. I looked the player up and it turns out they know each other from growing up in WA. No NCAA violations, but BYU violations so dude is still out.