How Mediapart tracked down Rwandan genocide suspect Aloys Ntiwiragabo in France

France's anti-terrorism prosecution authorities have opened a preliminary investigation for 'crimes against humanity' into Aloys Ntiwiragabo after Mediapart revealed that he was living in a quiet suburb of Orléans, a city 75 miles south-west of Paris. There had been an international search for the former head of military intelligence over his suspected role in the massacre of the Tutsis in Rwanda in 1994. Aloys Ntiwiragabo, now 72, also founded and led a criminal armed group, the Democratic Forces for the Liberation of Rwanda, which has been blamed for attacks in central Africa. But the Rwandan fugitive disappeared off the radar until Mediapart tracked him down. There are now questions over how France could have allowed him to enter the country and live here undetected. Théo Englebert reports.