Scene of the Crime — Episode 7: Two kinds of blood

You are watching the episode Two kinds of blood Schimanski seeks relaxation on the soccer field. And there, a man is beaten to death, apparently the victim of the increasingly brutal brawls between soccer fans. Is the dead man really the victim of the fans, or did he have something to do with the illegal recruitment of foreign workers, or did he perhaps want to monetize his knowledge and was therefore eliminated?