What happens to this person?

I know it shouldnt matter for me....but it mames me feel.better if ppl like him get banned... But do they? Yesterday a game...we were winnin bot pretty bad adc 5-0 entering a mid game with jungler struggling... Our adc asks for red..no answer..so the adc takes it by last hitting it... The jungler goes raging. And then starts trolling...split pushing but always recalls near tower...goes suicide with 1 on 4 And this slowly starts into a loss..when we had a huge lead..like 15-5 But always 4 on 5 we get pushed out of objectives etc etc... So does a guy lime this gets punished...or is this behaviour acceptable by riot?
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