Six young men found shot in the head in western German city of Duisburg . Five were dead when authorities arrived , two died later . -- Italian anti-organized crime agencies have estimated that the 'NDrangheta earns about $ 30 billion annually , mostly from illegal drugs , but also from ostensibly legal businesses such as construction , restaurants and supermarkets . The victims were between 15 and 18 years old , police say . Police believe the murders may be linked to organized crime in Italy .
Six young men found shot in the head in western German city of Duisburg . Five were dead when authorities arrived , two died later . The victims were between 15 and 18 years old , police say . Police believe the murders may be linked to organized crime in Italy .