GyazoTold to kill myself

This Kennen had harrassed me all game because I was losing lane to Garen. I was 1-3 when the harrastment started and he was 1-6 support at this time. I ended 1-6 and he ended 1-10. I couldnt play well during the match because at this time he proceeded to tell me to kill myself. "shoot yourself and let your head slide." This one was pretty good, such artistic value in it. It really makes me want to do my best. Not to mention that the team despite him being 1-6 and I was 1-3 at the time, agreed with him. I took a screen shot and posted it into post chat, then watched as the other team reported him. He added me after, then proceeded to tell me reasons why I should kill myself and that it was just good advice he was giving me. I have been playing for 5+ years, my main is currently on a 14 day suspension because I have a tendency to defend myself and my girlfriend whom I have matching names with. I dont think its fair that I am put on trial as a criminal for defending myself against players like this, while he will probably slide through tribunal. I dont think a mut ewould be appropriate for a player like this but a full on perma ban. He even mentions school shootings.