Amor Masovic has spent 28 years searching for human remains across Bosnia and Herzegovina.
But in that time, there have only been a few times, no more than 20, when people have come forward with information – tips on where the bodies are buried.
“The amount of information [obtained] from insiders who were involved in war crimes, or at least in burying war crime victims, is negligible,” Masovic, director of Bosnia’s Missing Persons Institute, told Al Jazeera.
Many participated in war crimes in Bosnia, and they still know where the remains are currently buried – from the person who pulled the trigger and the driver who transported the bodies from the execution site to the mass grave diggers.