The video above features this site in Bosnia where forensic teams are digging could be the largest mass grave for victims of ethnic cleansing.
Its existence has been known for years but not its location.
Bosnia's Institute for Missing Persons says the exact spot and details of the victims were known only to local Bosnian Serb witnesses who kept silent.
Suad Zeric survived detention in three military camps during the 1992-95 Bosnian war. He's been able to identify one of his missing uncles among the remains found so far at Tomasica.
On October 22nd the remains of 18 people were unearthed from the grave.
All the victims - men, women and children - had been shot.
According to witnesses about 1, 000 people were originally buried at Tomasica but some were later reburied elsewhere to cover up the crime.
Tomasica is one of 445 grave sites found in north-west Bosnia since the war ignited by its secession from Serbian-dominated federal Yugoslavia.