The 16 October murder of an investigative journalist and his assistant by suspected contract killers working for a local mayor has prompted serious concern about just how far organised criminal groups may have infiltrated authorities in Paraguay. With a string of national deputies and even a supreme court (CSJ) judge accused by local media of links to organised crime and drug trafficking, narco politics has shot up the agenda, with pressure on the government led by President Horacio Cartes to act. Official corruption has long been a problem in Paraguay. Long the largest marijuana producer in South America, Paraguay now…