I want my god damn LP back

NO ONE should have to lose LP in a ranked game because some kid decides "I am the reason the team is winning so im going to feed to prove a point." Openly admits that he is going to afk farm the jungle not group with team and promptly tells the enemy team to just win because he refuses to group or play. This summoner needs not be allowed to play ranked games with anyone when he is just going to troll feed every game. Need a riot employee to help get this kid out of this game ASAP before he ruins another game for 4 unfortunate souls. YES ONLY 4 because the enemy team honours the intentional feeders for a free win. If a riot employee could contact me I will give them the name of this summoner. I deserve my LP back and this kid needs to be permabanned from league. AFK trolling/feeding is way worse than anyone being foul mouthed because you can always mute that person. However you cannot make another player stop feeding on purpose and losing the game for the rest of your team. Something needs to change in the way this is handled because frankly, it is bull shit.