Desperately need advice
In a quick nutshell. Was playing a game and my adc was INCREDIBLY abusive, everything only I said he would tell me "shut the **** up" and then proceed to insult only me non stop.
After the game which was an incredible win I of course reported him, but there was one very solid problem.
He absolutely carried the game. His ending score was something 25-4-11 and he even got a Pentakill. I already know nobody in the game besides myself reported him. As a matter of fact, I got reported by him and his duo. Afterwards he added me and i decided to accept, and he said "I hope your parents die of cancer"
I honestly have no idea what to do. People shouldnt get away with that sort of talk, how do i report him? Do i just send an email to riot?