Protais Mpiranya was pursued to his grave by a small but relentless posse of seven UN investigators and analysts known as the tracking team.
The unit has played an essential role in finding all but a handful of the 93 accused war criminals indicted by the International Criminal Tribunal for Rwanda (ICTR). A similar tracking team worked for the parallel Yugoslav tribunal (ICTY), and by 2011 had helped bring to justice, or otherwise account for, all 161 of those charged with war crimes from the Balkan wars.
