Leopold Slikk - Known as Angry German Kid or echter gangster. He is actually used to make parodies about him.
Angry German KidEdit
He has named like that, when he posted a video, where he was playing Unreal Tournament. Video "Echter gangster am PC" or somthing like that, get more popular than his others videos. "Echter gangster am PC" was his (probably) last video.
Echter GangsterEditHe named himself echter gangster in his other videos.There's many of them, popular one is Echter Gangster Karten Spielen. There's also several ones