How to report a toxic player beyond the screen?

So, I have a video of a gameplay of a player staying AFK in the enemy jungle until the end of the game, and despite this behavior in this game which is bannable behavior (she afk'd in the same spot until the end of the game,) she has yet to be banned. If I were able to upload a video of this person's toxic play in action (I would upload the full game,) would a moderator be able to view this and possibly make sure that this player knows that what they're doing isn't okay? It really ruins games whenever this stuff happens. :/